Baldor Electric Pencil Sharpener Baldor User Manual

Digital Soft–Start  
Installation & Operating Manual  
5/03  
MN850  
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Section 4  
Parameter Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
4-1  
4-1  
4-1  
4-1  
4-2  
4-3  
4-5  
4-5  
4-5  
4-6  
4-6  
4-6  
4-7  
4-8  
Menu Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Basic Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Applications Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Auto Features Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Advanced Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Permanent Store Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Password Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Inputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Outputs Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Parameters Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Trips Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Mapping to an Output Relay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Parameter Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Section 5  
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Safety Notice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Preliminary Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Power Off Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Electrical Noise Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Relay and Contactor Coils . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Control Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Special Motor Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Analog Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
5-1  
5-1  
5-1  
5-1  
5-4  
5-4  
5-4  
5-4  
5-4  
Section 6  
Specifications and Product Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
6-1  
6-1  
6-1  
6-4  
6-4  
6-5  
6-6  
6-7  
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Three Phase Digital SoftStart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Size 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Size 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Size 3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Size 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Appendix A  
CE Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Appendix B  
Parameter Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Appendix C  
A-1  
B-1  
C-1  
Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Appendix D  
Voltage Surge Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
Appendix E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
D-1  
E-1  
E-2  
Remote Keypad Mounting Template . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  
ii Table of Contents  
MN850  
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Section 1  
General Information  
Introduction  
The Baldor digital three phase multipurpose softstarter provides reduced voltage, three  
phase motor starting and control over the four periods of motor operation. First, at  
Startup(softstart), the motor starting voltage increases from an initial preset level to  
full motor voltage to provide smooth motor acceleration to full speed. Second, the Dwell”  
period begins when maximum motor voltage is achieved. This dwell period allows time  
for the motor and load to stabilize. The third period is called Motor run(sometimes  
bypass is used during this portion of the cycle). The last period is Stopthe motor can  
be stopped gradually by reducing the torque (useful in pump applications).  
Softstart and softstop control provide an effective means to start and stop material  
handling equipment and pumping equipment to minimize spillage and water hammer  
problems. Selectable preset parameters for specific application allows simple  
programming.  
Several product features make this digital softstart control easy to use:  
S
Selectable preset parameter settings for pumps, high inertia loads, conveyors  
and compressors.  
S
S
S
S
S
S
S
S
S
Auto features simplify adjustments for optimum starting.  
Energy savings through real time power factor monitoring.  
Smooth starts and stops for impact free machine operation.  
Familiar interface, 32 character LCD Display and Keypad.  
Simple parameter access through 4 level programming.  
Quick exit from programming by using the #(Exit) button.  
Operating Current, Voltage and Power Factor displays.  
Fault indication and Trip Log.  
Programmable inputs and outputs.  
Limited Warranty  
For a period of two (2) years from the date of original purchase, BALDOR will repair or replace  
without charge controls and accessories which our examination proves to be defective in  
material or workmanship. This warranty is valid if the unit has not been tampered with by  
unauthorized persons, misused, abused, or improperly installed and has been used in  
accordance with the instructions and/or ratings supplied. This warranty is in lieu of any other  
warranty or guarantee expressed or implied. BALDOR shall not be held responsible for any  
expense (including installation and removal), inconvenience, or consequential damage,  
including injury to any person or property caused by items of our manufacture or sale. (Some  
states do not allow exclusion or limitation of incidental or consequential damages, so the  
above exclusion may not apply.) In any event, BALDORs total liability, under all  
circumstances, shall not exceed the full purchase price of the control. Claims for purchase  
price refunds, repairs, or replacements must be referred to BALDOR with all pertinent data as  
to the defect, the date purchased, the task performed by the control, and the problem  
encountered. No liability is assumed for expendable items such as fuses.  
Goods may be returned only with written notification including a BALDOR Return  
Authorization Number and any return shipments must be prepaid.  
MN850  
General Information 1-1  
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Safety Notice  
This equipment contains voltages that may be as high as 600 volts! Electrical shock can  
cause serious or fatal injury. Only qualified personnel should attempt the start-up  
procedure or troubleshoot this equipment.  
This equipment may be connected to other machines that have rotating parts or parts  
that are driven by this equipment. Improper use can cause serious or fatal injury. Only  
qualified personnel should attempt the start-up procedure or troubleshoot this equipment.  
PRECAUTIONS  
WARNING: Do not touch any circuit board, power device or electrical connection before you  
first ensure that power has been disconnected and there is no high voltage present  
from this equipment or other equipment to which it is connected.  
Electrical shock can cause serious or fatal injury.  
WARNING: Be sure that you are completely familiar with the safe operation of this equipment.  
This equipment may be connected to other machines that have rotating parts or  
parts that are controlled by this equipment. Improper use can cause serious or  
fatal injury. Only qualified personnel should attempt the start-up procedure or  
troubleshoot this equipment.  
WARNING: Be sure the system is properly grounded before applying power. Do not apply AC  
power before you ensure that all grounding instructions have been followed.  
Electrical shock can cause serious or fatal injury.  
Caution:  
Install MOV protection for the control. See Appendix D for information.  
Caution:  
Do not remove keypad cable with power applied to unit. Disconnecting the keypad  
cable with power applied will damage the control.  
Caution:  
Shearpin trip feature is not equivalent to short circuit overcurrent protection  
required by NEC. Instantaneous overcurrent protection must be provided by  
circuit interrupting device (fuse or breaker).  
Caution:  
Suitable for use on a circuit capable of delivering not more than the RMS  
symmetrical short circuit amperes listed here at rated voltage (with fuses specified  
in Section 2).  
Rated Amperes  
959  
RMS Symmetrical Amperes  
5,000  
72242  
10,000  
18,000  
30,000  
42,000  
300500  
600750  
9001200  
Caution:  
Do not Meggertest the motor while it is connected to the softstart control.  
Failure to disconnect motor will result in extensive damage to the control. The  
control is tested at the factory for high voltage / leakage resistance as part of  
Underwriter Laboratory requirements. Do not megger any part of the control.  
Caution:  
Caution:  
Do not connect power factor correction capacitors to motor terminals. If power  
factor correction capacitors are necessary, contact Baldor.  
If a brake motor is used, the initial starting voltage may not be sufficient to release  
the brake. It may be necessary to provide separate power for the brake release  
coil.  
Caution:  
Do not connect AC incoming line power to the Motor terminals T1, T2 and T3.  
Connecting AC power to these terminals may result in damage to the control.  
1-2 General Information  
MN850  
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Section 2  
Installation  
Receiving, Inspection and Storage  
When you receive your control, there are several things you should do immediately.  
1. Observe the condition of the shipping container and report any damage  
immediately to the commercial carrier that delivered your control.  
2. Remove the control from the carton. Inspect for shipping damage and report  
any damage immediately to your commercial carrier.  
3. Verify that the part number of the control you received is the same as the part  
number listed on your purchase order.  
4. If the control is to be stored for several weeks before use, be sure that it is  
stored in a location that is clean, dry and free from corrosives and  
contaminants. Storage temperature range is 25°C to 55°C.  
Be sure to read an become familiar with the safety notices in Section 1 of this manual.  
Failure to observe the product safety notices can result in injury or equipment damage.  
If you have questions, please contact your Baldor distributor. Do not proceed unless you  
understand the installation and operation requirements and safety notices.  
Physical Location  
The location of the softstart control is important. It should be installed in an area that is  
protected from direct sunlight, corrosives, harmful gases or liquids, dust, metallic  
particles, and vibration. Exposure to these elements can reduce the operating life and  
degrade performance of the control.  
Several other factors should be carefully evaluated when selecting a location for  
installation:  
1. For effective cooling and maintenance, the control should be mounted vertically  
on a flat, smooth, non-flammable vertical surface. Heat dissipation of 3.3 watts  
per running FLA of the motor must be provided. All factory supplied enclosures  
provided adequate heat dissipation with ambient temperatures to 40°C.  
2. If the control is mounted in an enclosure, sufficient air flow must be provided  
(see Table 2-1). The fan or blower must be rated for at least 0.8 cubic feet of  
30°C air per minute for each ampere of motor FLA rating.  
Table 2-1 Air Flow Clearance Requirements  
SoftStart  
Front  
inches (mm)  
Top & Bottom  
inches (mm)  
Sides  
inches (mm)  
Size  
1
2
3
1 (25)  
1 (25)  
1 (25)  
3 (75)  
3 (75)  
8 (200)  
0.6 (15)  
0.6 (15)  
3.5 (90)  
3. Keep high voltage and low voltage wiring separated. If the conduits must  
cross, be sure that they cross at 90° angles only.  
4. Motor overload protection is required for motor branch circuits that do not have  
an overload protection device.  
5. Front access must be provided to allow the control cover to be opened or  
removed for service and to allow viewing of the Keypad Display (1 inch (25mm)  
minimum).  
6. Altitude derating. Up to 3300 feet (1000 meters), no derating required. Above  
3300 feet, derate peak output current by 1% for each 330 feet above 3300 feet.  
6600 feet (2000 meters) maximum.  
7. Temperature derating. Up to 40°C, no derating required. Above 40°C, derate  
full load current by 2% per °C above 40°C.  
Maximum ambient is 60°C (at 40% derate).  
8. Short circuit current and overcurrent devices are required for softstart controls  
that do not have a circuit breaker or fusible disconnect switch.  
9. Dustproof NEMA 12, NEMA 4 nonventilated enclosure will require an end of  
ramp Bypass contactor. This requires additional hardware. Refer to Figure 2-6  
for details.  
MN850  
Installation 2-1  
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Cover Removal  
Size 1  
Size 2  
Remove Cover  
Remove Cover  
1. Remove two cover screws.  
1. Remove four cover screws.  
2. Remove cover.  
2. Pull bottom of cover (held by cover  
screws) and lift cover off of top hinge.  
Cover  
Cover  
Screws  
Screws  
L1  
L2  
L3  
Control Board  
Size 3, 4  
D5  
J2 J3 J4  
Remove Cover  
1. Remove four cover screws.  
2. Open cover (hinges on left side).  
Cover  
Screws  
115  
T1  
T2  
T3  
Inside View  
(Terminal  
X1 X2  
Locations)  
Remote Keypad Installation  
Figure 2-1 Remote Keypad Board Installation  
Firmware  
J7 Connector  
Remote Keypad Board  
Remote Keypad Connector  
Procedure:  
1. Remove cover and locate J7 connector on the control board (Figure 2-1).  
2. Remove old Firmware IC and install new Firmware IC. Be careful to use  
removal and insertion tools and antistatic procedures.  
3. Install Remote Keypad Board on the J7 connector.  
4. Connect remote keypad cable at Remote Keypad Connector.  
5. Install cover.  
6. Refer to the following Optional Remote Keypad Installation procedure and  
mount the keypad.  
7. Connect the keypad cable to the remote keypad.  
2-2 Installation  
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Optional Remote Keypad Installation The keypad may be remotely mounted using optional Baldor keypad  
extension cable. Keypad assembly (white - DC00005A-01; gray - DC00005A-02) comes  
complete with the screws and gasket required to mount it to an enclosure. When the  
keypad is properly mounted to a NEMA Type 4X enclosure, it retains the Type 4X rating.  
Tools Required:  
Center punch, tap handle, screwdrivers (Phillips and straight) and crescent  
wrench.  
8-32 tap and #29 drill bit (for tapped mounting holes) or #19 drill (for clearance  
mounting holes).  
1-1/4standard knockout punch (1-11/16nominal diameter).  
RTV sealant.  
(4) 8-32 nuts and lock washers.  
Extended 8-32 screws (socket fillister) are required if the mounting surface is  
thicker than 12 gauge and is not tapped (clearance mounting holes).  
Remote keypad mounting template. A tear out copy is provided at the end of  
this manual for your convenience. (Photo copy or tear out.)  
Mounting Instruction:  
For tapped mounting holes  
1. Locate a flat 4wide x 5.5minimum high mounting surface. Material should  
be sufficient thickness (14 gauge minimum).  
2. Place the template on the mounting surface or mark the holes as shown.  
3. Accurately center punch the 4 mounting holes (marked A) and the large  
knockout (marked B).  
4. Drill four #29 mounting holes (A). Thread each hole using an 8-32 tap.  
5. Locate the 1-1/4knockout center (B) and punch using the manufacturers  
instructions.  
6. Debur knockout and mounting holes making sure the panel stays clean and flat.  
7. Apply RTV to the 4 holes marked (A).  
8. Assemble the keypad to the panel. Use 832 screws, nuts and lock washers.  
9. From the inside of the panel, apply RTV over each of the four mounting screws  
and nuts. Cover a 3/4area around each screw while making sure to completely  
encapsulate the nut and washer.  
Mounting Instructions:  
For clearance mounting holes  
1. Locate a flat 4wide x 5.5minimum high mounting surface. Material should  
be sufficient thickness (14 gauge minimum).  
2. Place the template on the mounting surface or mark the holes as shown on the  
template.  
3. Accurately center punch the 4 mounting holes (marked A) and the large  
knockout (marked B).  
4. Drill four #19 clearance holes (A).  
5. Locate the 1-1/4knockout center (B) and punch using the manufacturers  
instructions.  
6. Debur knockout and mounting holes making sure the panel stays clean and flat.  
7. Apply RTV to the 4 holes marked (A).  
8. Assemble the keypad to the panel. Use 832 screws, nuts and lock washers.  
9. From the inside of the panel, apply RTV over each of the four mounting screws  
and nuts. Cover a 3/4area around each screw while making sure to completely  
encapsulate the nut and washer.  
MN850  
Installation 2-3  
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AC Main Circuit  
Power Disconnect  
A power disconnect should be installed between the input power service and the control  
for a fail safe method to disconnect power.  
Protective Devices  
Recommended fuse sizes are based on the following:  
175% of maximum continuous current for time delay.  
300% of maximum continuous current for Fast or Very Fast action.  
Note: These general size recommendations do not consider harmonic currents or  
ambient temperatures greater than 40°C.  
Be sure a suitable input power protection device is installed. Use the recommended  
circuit breaker or fuses listed in Table 2-5 (Wire Size and Protection Devices). Input and  
output wire size is based on the use of copper conductor wire rated at 75 °C. The table is  
specified for NEMA B motors.  
Circuit Breaker:  
3 phase, thermal magnetic.  
Equal to GE type THQ or TEB for 230VAC or  
Equal to GE type TED for 460VAC and 575VAC.  
Fast Action Fuses: 230VAC, Buss KTN  
460VAC, Buss KTS to 600A (KTU for 601 to 1200A)  
Very Fast Action:  
230VAC, Buss JJN  
460VAC, Buss JJS  
Time Delay Fuses: 230VAC, Buss FRN  
460VAC, Buss FRS to 600A (KLU for 601 to 1200A)  
2-4 Installation  
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UL Required Fuses for Short Circuit Rating  
UL requires R/C fuses, special purpose fuses (JFHR2) or semiconductor fuses rated  
700VAC be used to obtain the short circuit current ratings required by UL.  
Fuse Manufacturer  
Fuse  
Current Rating  
Amperes  
Short Circuit Rating  
Amperes  
Model Number  
Bussman (300 KA A.I.C.)  
Ferraz (200 KA A.I.C.)  
Catalog Number  
Catalog Number  
170M3110  
170M3112  
170M3114  
170M3115  
170M3116  
170M3119  
170M3121  
170M4114  
170M4114  
170M4116  
170M6113  
170M6113  
170M6116  
170M6116  
170M6116  
(2) 170M6116  
MD9 to MD16  
MD23 to MD30  
MD44  
6.6 URD 30 D08 A 0063  
6.6 URD 30 D08 A 0100  
6.6 URD 30 D08 A 0160  
6.6 URD 30 D08 A 0200  
6.6 URD 30 D08 A 0250  
6.6 URD 30 D08 A 0400  
6.6 URD 30 D08 A 0500  
6.6 URD 31 D08 A 0500  
6.6 URD 31 D08 A 0500  
6.6 URD 31 D08 A 0630  
6.6 URD 33 D08 A 0900  
6.6 URD 33 D08 A 0900  
6.6 URD 33 D08 A 1250  
6.6 URD 33 D08 A 1250  
63  
100  
160  
200  
250  
400  
500  
500  
500  
630  
900  
900  
1250  
1250  
1500  
(2) 1000  
5,000  
5,000  
5,000  
MD59  
5,000  
MD72 to MD85  
MD105 to MD146  
MD174 to MD202  
MD242  
MD300  
MD370  
MD500  
MD600  
MD750  
MD900  
10,000  
10,000  
10,000  
10,000  
18,000  
18,000  
18,000  
30,000  
30,000  
42,000  
42,000  
42,000  
MD1100  
MD1200  
Main Input Contactor  
An IEC or NEMA rated contactor is recommended at the input power to the control. The  
softstart control uses three pairs of SCR (silicon controlled rectifier) semiconductor  
devices that do not positively disconnect power. Figure 2-1 shows that the input  
contactor provides a positive disconnect.  
Table 2-2 Connection Descriptions  
Terminal  
Description  
L1, L2, L3  
Input AC power terminals. Connect input isolated 3 phase supply (any phase to any terminal).  
Output Power Terminals. Connect an induction motor to these terminals. For correct motor rotation,  
connection of these phases must correspond with the supply connections (L1, L2, L3).  
Control Supply Input. The internal circuits require power from a 115VAC or 230VAC source (Table 2-3).  
A selector switch is provided to select the voltage range of the source that is connected to this input.  
T1, T2, T3  
X1, X2  
Remote Start/Stop Input. A voltage present across these terminals will initiate a Start.  
Removing the voltage from across these terminals will initiate a Stop.  
Note that the factory setting is keypad Start/Stop.  
S1, S0  
Pins 11 and 12 are the normally closed Runrelay contacts.  
Pins 11 and 14 are the normally open Runrelay contacts.  
Pins 21 and 22 are the normally closed Top of Ramprelay contacts.  
Pins 21 and 24 are the normally open Top of Ramprelay contacts.  
Relay K1  
Relay K2  
MN850  
Installation 2-5  
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Figure 2-1 Power and Motor Circuit Connections  
115/230VAC  
Earth  
L1  
L2  
L3  
L1  
L2  
L3  
Note 1  
Alternate *  
Fuse  
Connection  
*
Note 2  
OT  
Note 1  
* Circuit  
Breaker  
or  
*
OL  
Note 3  
* Input  
Contactor  
IC  
Note 6  
* Optional components not provided with control.  
Note 4, 8  
L1  
L2  
L3  
S1  
S0  
X1  
X2  
Programmable  
Input  
115/230VAC  
Note 5, 6  
K1 is factory preset  
as the RUN" relay.  
Baldor  
Digital  
SoftStart  
14  
11  
12  
Notes:  
K1  
1.  
2.  
3.  
See Protective Devicesdescribed previously in this section.  
24  
21  
22  
Motor Overload and/or Thermal protection is required by NEC.  
K2  
T1  
Use same gauge wire for Earth ground as is used for L1, L2  
and L3.  
T2  
T3  
4.  
5.  
Metal conduit should be used. Connect conduits so the use of  
a Reactor or RC Device does not interrupt EMI/RFI shielding.  
X1 and X2 control terminal power must be present or the logic  
circuits will not work. Either 115VAC or 230VAC can be used.  
Be sure the 115/230VAC switch (Control Voltage Selector  
Switch) is set to the proper voltage before you apply power.  
Note 2  
6.  
7.  
8.  
The X1 and X2 control voltage input has different VA ratings  
depending on enclosure size, see Table 2-3.  
T2 T3  
T1 G  
115VAC  
* AC Motor  
Add appropriately rated protective device for AC relay  
(snubber) or DC relay (diode).  
*
Note 7  
OT  
To protect the control, be sure to add MOV protection. Refer to  
Appendix D for additional information.  
Motor Thermostat Leads  
See Recommended Tightening Torques in Table 2-4.  
All softstarters require a separate fused 2 wire, single phase connection at terminals X1  
and X2. An external fuse is required and must be sized as described in Table 2-3.  
Either 115VAC (98 126VAC) or 230VAC (196 253VAC) input may be used. The  
control voltage selector switch allows simple selection of 115VAC or 230VAC input power.  
Table 2-3 Control Supply  
Current Rating  
(Amps)  
Nominal Power Consumption  
(VA)  
Chassis Size  
115V Fuse  
230V Fuse  
to 23A  
8VA  
10VA  
12VA  
125mA  
200mA  
200mA  
200mA  
125mA  
2A  
63mA  
100mA  
100mA  
100mA  
63mA  
1A  
30A to 44A  
59A to 146A  
174A to 370A  
Size 1  
Size 2  
18VA  
8VA Control card  
140VA separate fan supply  
Size 3, 4  
500A to 1200A  
Motor Overload and Thermal Protection  
NEC and local codes may require thermal motor overload protection devices be installed  
rather than rely only on internal protection devices. Devices such as bimetallic overload  
relays may require special SoftStart settings (such as during low voltage starting to  
prevent heating). Use of electronic overload relays with this control is not recommended  
because of the distorted current waveform. A motor with built in thermal cutoff switches  
(TSTATs) is recommended.  
2-6 Installation  
MN850  
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InDelta Connections  
For Delta connected motors, the SoftStart can be connected inside the delta windings.  
This connection method is shown in Figure 2-2.  
Figure 2-2 InDelta SoftStart Connections  
L1  
L2  
L3  
L1  
L2  
L3  
Earth  
Note 2  
Alternate *  
Fuse  
Connection  
Note 1  
* Circuit  
Breaker  
Note 1  
* Optional components not provided with control.  
InDelta connections for correct motor rotation  
Note 3, 9  
L1  
T1  
L2  
L3  
X1  
X2  
115/230VAC  
Note 6, 7  
Baldor  
Digital  
SoftStart  
SoftStart  
Motor  
Terminal  
Terminal  
T1  
T2  
T3  
T3  
T1  
T2  
T2  
T3  
L1  
L2  
L3  
T5  
T6  
T4  
T1  
T3  
T5  
T2  
G
* AC Motor  
T4  
T6  
Note 8  
Notes:  
1.  
2.  
3.  
See Protective Devicesdescribed previously in this section.  
Use same gauge wire for Earth ground as is used for L1, L2 and L3.  
Metal conduit should be used. Connect conduits so the use of a Reactor or RC  
Device does not interrupt EMI/RFI shielding.  
See Recommended Tightening  
Torques in Table 2-4.  
4.  
5.  
Derating factor for softstart is 57%.  
Parameter P6Firing Mode must be set to 1.  
6.  
X1 and X2 control terminal power must be present or the logic circuits will not work.  
Either 115VAC or 230VAC can be used. Be sure the 115/230VAC switch (Control  
Voltage Selector Switch) is set to the proper voltage before you apply power.  
7.  
8.  
9.  
The X1 and X2 control voltage input has different VA ratings depending on enclosure  
size, see Table 2-3.  
For reversing operation, L1 and L2 should be switched. Reversing any two of the  
three input phases will reverse the motor rotation.  
To protect the control, be sure to add MOV protection. Refer to Appendix D for  
additional information.  
Fan Connections Size 3 and 4 only Size 1 and 2 controls do not have fan connections. For Size 3 controls make  
the fan connections as shown in Figure 2-3.The Fan and Control voltages must be the  
same (both must be 115VAC or both must be 230VAC). 150VA (minimum) required.  
Figure 2-3 Fan Connections  
115V Connections  
230V Connections  
X1  
X2  
(150VA minimum)  
X1  
X2  
MN850  
Installation 2-7  
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Wire Size and Protection Devices  
Table 2-4 Control Wire Sizes and Tightening Torques  
Wire Gauge *  
AWG  
mm2  
Terminal Torque  
Control  
Size  
Terminal  
Lbin  
Nm  
L1, L2, L3, T1, T2, T3  
(M8 Stud for Ring connector)  
Earth (Ground) Terminal  
(M8 Stud for Ring connector)  
L1, L2, L3, T1, T2, T3  
(M8 Stud for Ring connector)  
Earth (Ground) Terminal  
(M8 Stud for Ring connector)  
L1, L2, L3, T1, T2, T3  
106  
12  
1
2
1/0  
50  
106  
106  
106  
212  
212  
12  
12  
12  
24  
24  
(2)  
250MCM  
(2) 120  
Busbar size:  
** (Connector with two M10 holes on 30mm center)  
Earth (Ground) Terminal  
(M10 Stud for Ring connector)  
S0 and S1  
45x20  
60x10  
80x10  
3, 4  
14 22  
0.5 2.5  
0.5 2.5  
0.5 2.5  
0.5 2.5  
4.5  
4.5  
4.5  
4.5  
0.5  
0.5  
0.5  
0.5  
X1 and X2  
K1 (11, 12, 14)  
K2 (21, 22, 24)  
14 22  
14 22  
14 22  
All  
* Use same gauge wire for Earth ground as is used for L1, L2 and L3.  
** Use terminal #4350kcmil,1 per phase (ILSCO Part No.LO350S, LO600S or LO1000S  
or equivalent).  
Table 2-5 NEC Wire Size and Protection Devices  
Control Rating  
Amps  
Input Breaker  
(Amps)  
Input Fuse (Amps)  
Wire Gauge  
Fast Acting  
Time Delay  
AWG  
mm2  
9
15  
30  
40  
50  
30  
50  
70  
90  
20  
30  
40  
60  
12  
12  
10  
8
3.31  
3.31  
5.26  
8.37  
16  
23  
30  
44  
59  
70  
90  
150  
200  
80  
8
6
8.37  
13.3  
110  
85  
110  
175  
250  
275  
300  
400  
450  
600  
800  
900  
1200  
1400  
250  
350  
450  
600  
600  
150  
200  
275  
300  
350  
450  
600  
700  
900  
1100  
1400  
1600  
4
2
2/0  
3/0  
21.2  
33.6  
67.4  
85.0  
107.0  
127.0  
177.0  
253.0  
(2) 127.0  
(2) 177.0  
(2) 253.0  
(2) 355.0  
105  
146  
174  
202  
242  
300  
370  
500  
600  
750  
900  
4/0  
750  
900  
250MCM  
350MCM  
500MCM  
(2) 250MCM  
(2) 350MCM  
(2) 500MCM  
(2) 700MCM  
1200  
1500  
1800  
2500  
3000  
1100  
1200  
1600  
1800  
2000  
2000  
(3) 700MCM  
(3) 700MCM  
(3) 355.0  
(3) 355.0  
Note: All wire sizes are based on 75°C copper wire. Higher temperature smaller gauge wire may be used per NEC  
and local codes. Recommended fuses/breakers are based on 40°C ambient, maximum continuous control  
output current and no harmonic current.  
2-8 Installation  
MN850  
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Three Wire Control  
Figure 2-4 Three Wire Control Connection  
115 / 230VAC  
Note: Add appropriately rated protective  
device for AC relay (snubber)  
or DC relay (diode).  
Fuse  
Neutral  
Stop  
Start  
R1  
IC  
X1  
X2  
Baldor  
Digital  
SoftStart  
S1  
S0  
R1  
IC  
14  
11  
12  
K1 is factory preset  
as the RUN" relay.  
OT OL  
K1  
K2  
IC= Input Contactor Coil  
OL= Thermal Overload Relay  
OT= Motor Thermal Overload Relay  
24  
21  
22  
* External hardware not provided with control.  
See Recommended Tightening Torques in Table 2-4.  
Two Wire Control  
Figure 2-5 Two Wire Control Connection  
115 / 230VAC  
Note: Add appropriately rated protective  
device for AC relay (snubber)  
or DC relay (diode).  
Fuse  
Neutral  
Choose Control Circuit  
Off  
On  
Control Circuit  
R1  
X1  
X2  
Or  
Hand  
Baldor  
Digital  
SoftStart  
R1  
S1  
S0  
Off  
R1  
Auto  
IC  
14  
11  
12  
K1 is factory preset  
as the RUN" relay.  
OT OL  
K1  
K2  
IC= Input Contactor Coil  
OL= Thermal Overload Relay  
OT= Motor Thermal Overload Relay  
24  
21  
22  
* External hardware not provided with control.  
See Recommended Tightening Torques in Table 2-4.  
MN850  
Installation 2-9  
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NEMA 12/4 Installation  
When a NEMA12, NEMA4, NEMA4x OR IP65 enclosure is used, a separate Top of Ramp  
Bypass (or shunt) contactor must be connected in parallel with the softstart control. This  
will allow a solid connection of the motor to the AC power lines and eliminate the heating  
effect caused by the SCRs. At the completion of the start ramp (when full start voltage is  
obtained) a Bypass contactor is closed. This contactor is controlled by the Top of Ramp”  
relay K2. This ensures that bypass will only occur when motor voltage equals the AC line  
voltage.  
Figure 2-6 Top of Ramp (Bypass) Connection  
115/230VAC  
To AC Input  
To protect the control, be sure to add MOV protection.  
Refer to Appendix D for additional information.  
Fuse  
Neutral  
X1  
X2  
L1  
L2  
L3  
S1  
S0  
BC  
Baldor  
Digital  
SoftStart  
* BC Bypass  
Contactor  
Note:  
14  
11  
12  
Add appropriately rated  
protective device for AC  
relay (snubber) or DC  
relay (diode).  
K1  
K2  
24  
21  
22  
K2 is factory preset  
as the Top of Ramp" function.  
T1  
T2  
T3  
* External hardware not provided with control.  
See Recommended Tightening Torques in Table 2-4.  
To Motor  
2-10 Installation  
MN850  
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Reversing Contactor  
For this mode, the Stop Time must be set to zero. Also, allow a minimum of 350 milli  
seconds between the Forward and Reverse commands.  
Figure 2-7 Motor Reversing Connection  
To AC Input  
Reverse  
Contacts  
Forward  
Contacts  
MI  
To protect the control, be sure to add MOV protection.  
Refer to Appendix D for additional information.  
MI - Mechanical Interlock  
115/230VAC  
Fuse  
Neutral  
X1  
L1  
L2  
L3  
R
X2  
Forward  
Reverse  
F
S1  
S0  
F
R
Baldor  
Digital  
SoftStart  
Note 1  
R
F
14  
11  
12  
K1  
K2  
Note 1: Add appropriately rated protective  
device for AC relay (snubber)  
or DC relay (diode).  
24  
21  
22  
K2 is factory preset  
as the Top of Ramp" function.  
T1  
T2  
T3  
* External hardware not provided with control.  
See Recommended Tightening Torques in Table 2-4.  
MN850  
Installation 2-11  
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Installation  
1. Remove cover. (See cover removal described previously in this section.)  
2. Mount the panel or enclosure to the mounting surface. The panel or enclosure  
must be securely fastened to the mounting surface. Refer to the mounting  
dimensions in Section 6 of this manual.  
Shock Mounting  
If the control will be subjected to levels of shock greater than 1G or vibration  
greater than 0.5G at 10 to 60Hz, the control should be shock mounted.  
3. Ground the panel and control per NEC article 250 as well as state and local  
codes.  
4. Use copper wire rated for at least 75°C. Refer to Tables 2-4 and 2-5 for wire  
size recommendations.  
5. Connect the incoming AC power wires from the power disconnect and/or  
protection devices to L1, L2 and L3 terminals. Tighten each terminal as  
specified in Section 2 of this manual. To protect the control, be sure to add  
MOV protection (refer to Appendix D for additional information).  
6. Connect 115VAC to the X1 and X2 terminals. This 115VAC input must be  
fused. Refer to Table 2-3 for ratings.  
7. Be sure to set the 115/230VAC switch (Control Voltage Selector Switch) to the  
115VAC position.  
8. * Connect earth ground to the GNDof the control. Be sure to comply with local  
codes.  
9. Connect the motor leads to terminals T1, T2, and T3.  
10. * Connect motor ground wire to the GNDof the control. Be sure to comply  
with all applicable codes.  
11. Connect the S0, S1, K1 and K2 control terminals as required for your  
installation.  
12. Verify the input line voltage is correct.  
13. Verify the Control Voltage is correct and that the selector switch is correctly set.  
14. Complete any optional wiring connections that may be needed for your  
installation.  
15. Install cover.  
*
Grounding by using conduit or panel connection is not adequate. A separate  
conductor of the proper size must be used as a ground conductor.  
2-12 Installation  
MN850  
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Section 3  
Operation  
Overview  
The startup procedure will help get your system up and running quickly and will allow  
motor and control operation to be verified. This procedure assumes that the Control and  
Motor are correctly installed (see Section 2 for procedures) and that you have a basic  
understanding of the keypad programming & operation procedures.  
1. Read the Safety Notice and Precautions in section 1 of this manual.  
2. Mount the control.  
3. Be sure the cover is on and the keypad is plugged in but all power is OFF.  
4. Connect Three Phase AC power (L1, L2, L3).  
5. Connect 115VAC 1 phase power (X1, X2).  
Note: Factory assembled combination and noncombination controllers and  
controllers in ventilated NEMA 12 enclosures have an internal transformer  
that provides 115VAC power to X1 and X2 terminals (prewired).  
6. Connect the motor.  
Check of electrical items.  
PreStart Checklist  
CAUTION: After completing the installation but before you apply power, be  
sure to check the following items.  
1. Verify the Three Phase AC line voltage at source matches control rating.  
2. Verify the X1, X2 Control Voltage at source is correct. An external fuse is  
required and must be sized as described in Table 2-3.  
3. Verify the Control Voltage Selector Switch is correctly set.  
4. Inspect all connections for accuracy, workmanship and tightness as well as  
compliance to codes.  
5. Verify control and motor are grounded to each other and the control is  
connected to earth ground.  
6. Check all signal wiring for accuracy.  
7. Be certain all brake coils, contactors and relay coils have noise suppression.  
This should be an R-C filter for AC coils and reverse polarity diodes for DC  
coils. MOV type transient suppression is not adequate.  
Check of Motors and Couplings  
1. Verify freedom of motion of motor shaft.  
2. Verify that the motor coupling is tight without backlash.  
3. Verify the holding brakes if any, are properly adjusted to fully release and set to  
the desired torque value.  
MN850  
Operation 3-1  
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StartUp Procedure  
This procedure assumes that this is the first time the control and motor have been  
started. The normal startup procedure would be as follows:  
1. Apply X1, X2 Control Voltage power (115VAC).  
2. Apply three phase power. The display should show Stopped & Ready.  
3. Press ENTER and the display should show Applications.  
4. Press ENTER and the display should show Settings.  
5. Press the UP or DOWN Arrows and select the desired type of motor load.  
6. Press ENTER and the display should briefly display loading of parameters then  
prompt for Send to Store?. Press ENTER to store values.  
Note: Values must be saved to Permanent Storeto be restored at powerup.  
See Changing the Powerup Settingsin this section.  
7. Press #twice to exit programming.  
8. The display should show Stopped & Ready.  
Press Start/Stopto run the motor.  
First Time Startup (Apply X1, X2 115 volt power and become familiar with the control).  
Apply X1, X2 Control Voltage power (115VAC). The backlit LCD display will illuminate  
and display. The control is now ready for operation.  
Action  
Description  
Display  
Comments  
Apply Control Voltage  
(115VAC)  
Keypad Display shows this  
opening message.  
Logo display for 2 seconds.  
Baldor Soft Start  
If no faults the display will show  
this message.  
System Status mode.  
Stopped & Ready  
Keypad Operation  
On the control front panel is a keypad and display as shown in Figure 3-1.  
Figure 3-1 Keypad Definition  
Keypad  
Switch  
Mode  
System  
Status  
Data  
Entry  
Program Menu  
ENTER Enters the  
Program menu.  
Position in the menu  
structure goes forward  
(down) one level. (e.g. from flashed on the display for 2 seconds  
Accepts any changes to the setting of  
a menu item. The new setting is  
Baldor Soft Start  
Level 2 to Level 3).  
then returns to the menu mode.  
No action  
No action  
Position in the menu  
structure goes back (up) one a menu item. The display returns to  
level. (e.g. from Level 1 to  
Level 0).  
Cancels any changes to the setting of  
#
PARAMETER SETTING  
Select store  
exit/reset  
ENTER  
#
the menu mode.  
up/increment  
down/decrement  
bit shift left  
Position in the menu  
structure goes back (up) one analog value. Or,  
Increments a menu item that has an  
OPTIMISE  
level.  
Sets one selected bit to Bit=1 for a  
menu item that requires a logical  
selection.  
No action  
Position in the menu  
structure goes back (up) one analog value. Or,  
level. (e.g. from Level 1 to  
Level 0).  
Decrements a menu item that has an  
Display is a backlit 2 line x 16 character  
LCD display (32 character display).  
Sets one selected bit to Bit=0 for a  
menu item that requires a logical  
selection.  
OPTIMISE Selects or  
0000 0000  
Note: Optimise key is used as left  
right shift key to scroll through the bit  
map in parameter 18, 51, 52, 53, 54,  
86, 95, 96.  
deselects  
optimizing, when  
motor is running.  
Shifts left one bit position at  
a time.  
Note: For keypad to be active,  
keypad control must be selected.  
Start  
Stop  
Starts or Stops the No action  
motor.  
No action  
3-2 Operation  
MN850  
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Operating Modes  
System Status Mode  
Description  
Display  
OPTIMIZE  
Comments  
Shows that Optimized operation  
is selected and the load current is  
183 amperes.  
During normal operation, the display shows the status  
of operation.  
CURRENT  
183 A  
Menu Mode  
At the power up display, press ENTER one time to go to the menu mode and display the  
level 1 menu.  
Description  
Display  
Comments  
In the menu mode, a flashing cursor is displayed. Use  
the or keys to scroll through the menu items. Use  
the ENTER key to select a menu item or move to the  
next level.  
APPLICATIONS  
BASIC  
V represents blinking cursor.  
Data Entry Mode  
At the menu mode, scroll to the desired parameter value you wish to change. Press  
enter to view or change the data. (If a blinking cursor is not present, the data is read  
only.)  
Description  
Display  
Comments  
In the data entry mode, a flashing cursor is displayed.  
Use the or keys to increase or decrease the value  
of the parameter. Use the ENTER key to save the  
data value. The display will flash one time if the value  
is accepted. The display will flash two times if the  
value is erroneous.  
START PEDESTAL  
V represents blinking cursor.  
20  
PERCENT  
MN850  
Operation 3-3  
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Menu Structure  
Figure 3-2 Menu Structure Diagram  
Level 0  
Level 1  
Level 2  
Level 3  
ENTER  
ENTER  
ENTER  
ENTER  
Settings  
Default (keypad)  
Small Pump  
Large Pump  
Applications  
Auto features  
Stopped and ready  
Settings  
Auto Jog (Off)  
Auto Pedestal (Off)  
Auto end start (Off)  
Auto stop (Off)  
Conveyor  
Low Inertia Fan  
High Inertia Fan  
Recip Compressor  
Screw Compressor  
Rotary Compressor  
Auto end stop (Off)  
Auto bypass (On)  
Auto 3MC (On)  
Auto features  
Basic  
Auto off (Off)  
Stop smoothing (Off)  
Starting (Keypad)  
Full  
Start pedestal  
Start time (5s)  
Full + optimise(Preset)  
Start + bypass  
Phase loss only  
Basic  
Advanced  
Stop pedestal (10%)  
Stop time (0s)  
Current limit (3.5xle)  
Power on Param  
Protection  
Advanced  
Current  
Optimise rate (5)  
Kick start (Off)  
Rated current (Ie) **  
Low current (Off)  
Low amps level (0.1xFLC)  
Low amps time (50cycles)  
C/L time out (On)  
Current limit (3.5xIe)  
Limit time out (30s)  
Shearpin (On)  
Shearpin level (3.125xIe)  
Shearpin time (100cycles)  
Overload level (1.1xIe)  
Overload delay (140)  
Permanent store  
Save parameters  
Power on parameters  
Default parameters  
Kick pedestal (75%)  
Kick time (25cycles)  
Dwell time (5s)  
Low volts stop (On)  
Contactor delay (160ms)  
Trip sensitivity (1)  
Station number (1)  
Language (44)  
Permanent store  
Password  
Enter password  
Change password  
Password  
Inputs  
Firing mode (0) *  
Stop Smoothing (5)  
Outputs  
Parameters  
Trips  
#
#
#
#
*
The Firing Modemust be set to 1 for the InDelta configuration.  
** The Rated Currentsetting is for reference only and is not user adjustable.  
3-4 Operation  
MN850  
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Menu Navigation Examples  
Menu Navigation  
This example shows how to go to the Inputs menu and map an input parameter.  
Action  
Description  
Display  
Comments  
Apply Control Voltage  
(115VAC)  
Keypad Display shows this  
opening message.  
Logo display for 2 seconds.  
Baldor Soft Start  
If no faults the display will show  
this message.  
System Status mode.  
Stopped & Ready  
Press ENTER key  
Press key  
Press ENTER to access menu  
mode.  
APPLICATIONS  
AUTO FEATURES  
Scroll to the AUTO FEATURES  
menu.  
Press ENTER to access Basic  
level 2 parameters if desired.  
AUTO FEATURES  
BASIC  
Press key  
Scroll to the BASIC menu.  
Press ENTER to access  
Advanced level 2 parameters if  
desired.  
BASIC  
ADVANCED  
Press key  
Scroll to the ADVANCED menu.  
Press ENTER to access  
Advanced level 2 parameters if  
desired.  
ADVANCED  
PERMANENT STORE  
Press key  
Scroll to the PERMANENT  
STORE menu.  
Press ENTER to access  
Password parameter if desired.  
PERMANENT STORE  
PASSWORD  
Press key  
Scroll to the PASSWORD menu.  
Scroll to the INPUTS menu.  
Enter level 2 of inputs menu.  
Enter level 3 of inputs menu.  
Scroll to the 52 Parameter menu.  
Scroll to the Bit Number menu.  
Enter the Bit Number menu.  
Press ENTER to access  
Password parameter if desired.  
PASSWORD  
INPUTS  
Press key  
Press ENTER to access  
Password parameter if desired.  
INPUTS  
OUTPUTS  
Press ENTER key  
Press ENTER key  
Press key  
DIGITAL I/P 1  
MAP TO  
52 PARAMETER  
52 PARAMETER  
BIT NUMBER  
Press key  
BIT NUMBER  
POLARITY  
Press ENTER key  
Press OPTIMISE key  
Press OPTIMISE key  
Press OPTIMISE key  
Press key  
BIT NUMBER  
01000000 MASK  
Allows you to change the value of  
the first bit.  
BIT NUMBER  
01000000 MASK  
Allows you to change the value of  
the second bit.  
BIT NUMBER  
01000000 MASK  
Allows you to change the value of  
the third bit.  
BIT NUMBER  
01000000 MASK  
Allows you to change the value of  
the third bit.  
BIT NUMBER  
01100000 MASK  
Press ENTER key  
Accept the change.  
BIT NUMBER  
01100000 MASK  
Press # key several  
times  
Press the # key numerous times  
to return to the system status  
mode.  
System Status mode.  
Stopped & Ready  
MN850  
Operation 3-5  
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Changing the Powerup Settings & Select Keypad Control When the Control Supply (115VAC) power is first  
applied, the control loads the parameter settings into working memory. You may change  
any of these parameters and operate a motor with the changed settings. However, if  
these values are not saved they will be lost the next time power is removed. You can  
save the new values as powerup values so they will be loaded the next time Control  
Supply power is turned off and turned back on.  
Procedure:  
Turn Control Supply power on. Use the menus and change any parameters to the new  
values as desired. When all changes are made, operate the motor to ensure that all  
values are as desired. Then, stop the control and perform the following:  
Action  
Description  
Display  
Comments  
Press ENTER key  
Press ENTER to access menu  
mode.  
APPLICATIONS  
AUTO FEATURES  
Press key several  
times  
Scroll to the Permanent Store  
menu.  
PERMANENT STORE  
PASSWORD  
Press ENTER key  
Enter level 2 of Permanent Store  
menu.  
SAVE PARAM  
POWER ON PARAM  
Press key several  
times  
Scroll to the Default Param menu.  
DEFAULT PARAM  
DEFAULT PARAM  
Press ENTER key  
Stores the new parameter values  
in permanent memory. Thew  
display will flash one time to show  
parameters were successfully  
saved.  
Next time power is applied, these  
new values will be loaded and  
used for motor operation.  
Press # key several  
times  
Scroll to the Basic menu.  
APPLICATIONS  
AUTO FEATURES  
Select Keypad Starting and Keypad Control  
Action  
Description  
Display  
Comments  
Press ENTER key  
Press ENTER to access menu  
mode.  
APPLICATIONS  
AUTO FEATURES  
Press key  
Scroll to the Basic menu.  
BASIC  
ADVANCED  
Press ENTER key  
Press ENTER key  
Enter level 2 of Basic menu.  
STARTING (KEYPAD)  
START PEDESTAL  
Accept the change to keypad  
starting.  
STARTING (KEYPAD)  
START PEDESTAL  
Press # key several  
times  
Scroll to the Basic menu.  
APPLICATIONS  
AUTO FEATURES  
3-6 Operation  
MN850  
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Motor Starting Definitions  
Term  
Definition  
Starting  
Selectable in Basic Menu as either Keypad or Remote starting method.  
Voltage Pedestal  
Initial voltage applied to motor after the 3 cycle powerup ramp.  
Programmed as parameter 11 or as Start Pedestal in Basic Menu.  
Kick Pedestal  
For traction or frozenloads, this boost pulse of higher voltage helps the load to start  
moving. Kick Start is in the Advanced menu. Kick Pedestal is parameter 13 or as Kick  
Pedestal in Advanced menu.  
Kick Time  
Start Time  
Dwell Time  
Optimizing  
Number of cycles duration the kick pedestal voltage is applied. Programmed as parameter  
14 or as Kick Time in Advanced menu.  
Number of seconds after the 3 cycle powerup to full motor voltage. Programmed as  
parameter 12 or as Start Time in Basic Menu.  
Number of seconds that full voltage is applied to the motor before optimizing begins (if  
optimizing is selected). Programmed as parameter 15 or as Dwell Time in Advanced menu.  
Process of detecting underload condition and reducing the RMS voltage to the motor. This  
eliminates overflux condition of the motor windings to reduce saturation and results in  
substantial power savings (up to 2% efficiency increase). Optimizing is selected by the  
keypad or as parameter 7 or as Protection parameter in Basic Menu.  
Optimizing Rate  
Contactor Delay  
3 Cycle Powerup  
A numerical value that represents the rate at which the motor voltage is reduced during  
optimizing. When this number is large, improves efficiency on stable loads. A lower  
number for unstable loads will reduce speed variations. Programmed as parameter P19.  
A delay is required when an input contactor is energized by the softstart Runrelay. This  
delay allows bouncing contactor armature to settle during the Closedposition.  
Programmed as parameter 71 or as Contactor Delay in Advanced menu.  
This non adjustable time is to allow voltage build up from zero to the initial pedestal. It is  
intended to reduce current inrush and allows for shorted SCR detection. This delay may be  
turned off to start a motor even with one shorted SCR or to use high inertia loads on class C  
or D motors. Programmed as the Auto 3MCparameter in Auto Features menu.  
Figure 3-3 Motor Starting Key Terms  
Motor  
Voltage  
Optimise Rate  
Full Voltage  
Kick Pedestal  
Optimizing  
Auto Pedestal  
Voltage Pedestal  
Kick  
Time  
3 Cycle  
Powerup  
Time  
Contactor  
Delay  
Start Time  
Dwell Time  
Run  
MN850  
Operation 3-7  
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Keypad Starting and Running the Motor with Factory Settings  
Action  
Description  
Display  
Comments  
Apply Control Voltage  
(115VAC)  
Keypad Display shows this  
opening message.  
Logo display for 2 seconds.  
Baldor Soft Start  
If no faults the display will show  
this message.  
System Status mode.  
Stopped & Ready  
Press ENTER key  
Press ENTER key  
Press key two times  
Press ENTER key  
Press ENTER key  
Press ENTER key  
Press # key twice  
Press Start/Stop key  
APPLICATIONS  
AUTO FEATURES  
Access Level 1 Application Menu.  
Scroll to the correct application.  
Select the application.  
Settings  
Default (Keypad)  
Small Pump  
Large Pump  
Large pump is selected in this  
example.  
Large Pump  
Conveyor  
Choose set of parameters for the  
application.  
Send to Store  
’#’=no Enter=Yes  
Scroll to the PASSWORD menu.  
Storing  
Press # key two times to exit  
programming.  
Large Pump  
Conveyor  
Displays motor starting current  
and full voltage and current.  
Starting  
Current  
8A  
8A  
Full volts  
Current  
3-8 Operation  
MN850  
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Keypad Starting and Running the Motor in Optimise Mode  
Action  
Description  
Display  
Comments  
Apply Control Voltage  
(115VAC)  
Keypad Display shows this  
opening message.  
Logo display for 2 seconds.  
Baldor Soft Start  
If no faults the display will show  
this message.  
System Status mode.  
Stopped & Ready  
Press ENTER key  
Press ENTER key  
Press key two times  
Press ENTER key  
Press ENTER key  
Press ENTER key  
Press # key twice  
Press Start/Stop key  
APPLICATIONS  
AUTO FEATURES  
Access Level 1 Application Menu.  
Scroll to the correct application.  
Select the application.  
Settings  
Default (Keypad)  
Small Pump  
Large Pump  
Large pump is selected in this  
example.  
Large Pump  
Conveyor  
Choose set of parameters for the  
application.  
Send to Store  
#=no Enter=Yes  
Scroll to the PASSWORD menu.  
Storing  
Press # key two times to exit  
programming.  
Large Pump  
Conveyor  
Displays motor starting current  
and full voltage and current.  
Starting  
Current  
8A  
8A  
4A  
Full volts  
Current  
Press OPTIMISE key  
Optimising  
Current  
Ready for Remote Start/Stop.  
Baldor Digital SoftStart offers three modes of protection during operation:  
1. Full protection with full voltage after top of ramp.  
2. Full optimize protection with energy optimizing by reduced voltage at lower  
loads.  
3. Start + Bypass protection (during start only). No softstart protection is  
provided when during bypass (when softstart is shorted by the bypass  
contactor).  
Remote Start and Running the Motor  
When Remote Starting is selected, the keypad Start/Stop pushbutton is not active.  
Action  
Description  
Display  
Comments  
Apply 115VAC at the  
input terminals S0 and  
S1.  
Input 1 is Start/Stop input when  
Remote Starting is selected.  
(P52 Bit 16 set to terminal.)  
MN850  
Operation 3-9  
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Motor Stopping Definitions  
Term  
Definition  
Stop Pedestal Voltage  
Stop Pedestal Voltage is the percentage of line voltage applied to the motor after a stop  
command. Programmed as parameter 16 or as Stop Pedestal in Basic Menu.  
Stop Time  
Time in seconds after a stop command to ramp down the motor voltage (Stop Time 1 or 2)  
Stop Time 1 with low voltage ramp active. Stop Time 2 with no low voltage ramp.  
Programmed as parameter 17 or as Stop Time in Basic Menu.  
Stop Smoothing  
Adjustable voltage ramp for smooth deceleration. Motor current is monitored and stop  
smoothing will continue until the Start Pedestal value is reached.  
Programmed as parameter  
Run Voltage  
Full voltage or Running Voltage  
Start Pedestal Voltage  
Start Pedestal Voltage end of stop smoothing and beginning of low voltage ramp to zero  
volts (if low voltage ramp is active). Programmed as parameter 11 or as Start Pedestal in  
Basic Menu.  
Figure 3-4 Motor Stopping Key Terms  
Motor  
Voltage  
Stop  
Smoothing Effect  
Full Voltage  
Run  
Voltage  
Ideal  
Stop Pedestal  
Stop Smoothing  
Actual  
End of Stop Smoothing  
Stop Pedestal  
Voltage  
Low Voltage Ramp  
Start Pedestal  
Voltage  
Stop  
Time 2  
Time  
Stop Time 1  
Stopping the Motor  
When Remote Starting is selected, the keypad Start/Stop pushbutton is not active.  
Action  
Description  
Display  
Stopping  
Comments  
Press Start/Stop key  
(Keypad Stop)  
Displays motor starting current  
and full voltage and current.  
Begins the Stop operation  
Current  
8A  
Remove the 115VAC  
from S0 and S1.  
(Remote Stop)  
Begins the Stop operation  
Stopping  
Current  
8A  
3-10 Operation  
MN850  
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Section 4  
Parameter Index  
Menu Descriptions  
Basic Menu  
Block Title  
Parameter  
Description  
Basic  
Starting  
Keypad Allows motor starting and stopping by pressing Start/Stop key on keypad.  
Remote Allows motor starting and stopping by applying or removing 115VAC at  
terminals S0 and S1 of the control board.  
Start Pedestal  
Start Pedestal Voltage end of stop smoothing and beginning of low voltage ramp to  
zero volts (if low voltage ramp is active).  
Start Time  
Number of seconds after the 3 cycle powerup to full motor voltage.  
Stop Pedestal  
Stop Pedestal Voltage is the percentage of line voltage applied to the motor after a stop  
command.  
Stop Time  
Time in seconds after a stop command to ramp down the motor voltage (Stop Time 1 or  
2). Stop Time 1 with low voltage ramp active. Stop Time 2 with no low voltage ramp.  
Current Limit  
Percentage of running current (P24 and P25). Adjustable from 100 800%.  
Power on  
Parameter  
Resets all parameter values to the values at the most recent power up. Display blinks  
twice to confirm reset is complete.  
Protection  
Full provides shorted SCR protection during start and run, single phase protection  
during start, optimizing not selected.  
Full + Optimise provides shorted SCR protection during start and run, single phase  
protection during start, optimizing is selected.  
Start + Bypass provides shorted SCR protection during start, single phase protection  
during start, optimizing not selected and no single phase protection during run.  
This mode must be used with top of ramp bypass contactor.  
Phase Loss only shorted SCR protection during start and run is disabled, single phase  
protection during start, optimizing not selected.  
This mode is recommended when input power noise frequently causes nuisance trips.  
Applications Menu  
Block Title  
Parameter  
Description  
Applications  
Settings  
Display starting method, either Keypad or Remote. Also displays operating mode  
(Optimizing or Full Voltage).  
Default (Keypad)  
Small Pump  
Sets starting and stopping mode to keypad, resets control and restores all parameters to  
factory preset values.  
Uses preset parameter values for typical small centrifugal pump. (P11, P12, P16, P17,  
P30 and P31 values).  
Large Pump  
Uses preset parameter values for typical large centrifugal pump. (P11, P12, P16, P17,  
P30 and P31 values).  
Conveyor  
Uses preset parameter values for typical conveyor. (P11, P12, P16, P17, P30 and P31  
values).  
Low Inertia Fan  
High Inertia Fan  
Uses preset parameter values for Low Inertia Fan. (P11, P12, P16, P17, P30 and P31  
values).  
Uses preset parameter values for High Inertia Fan. (P11, P12, P16, P17, P30 and P31  
values).  
Reciprocating  
Compressor  
Uses preset parameter values for Reciprocating Compressor. (P11, P12, P16, P17, P30  
and P31 values).  
Screw Compressor Uses preset parameter values for Screw Compressor. (P11, P12, P16, P17, P30 and  
P31 values).  
Rotary Compressor Uses preset parameter values for Rotary Compressor. (P11, P12, P16, P17, P30 and  
P31 values).  
MN850  
Parameter Index 4-1  
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Applications Menu Continued  
Name  
Small Pump  
Name  
Screw Compressor  
%
S
%
S
%
S
%
S
Start Pedestal %  
Start Time  
10  
5
Stop Pedestal %  
Stop Time  
10  
30  
25  
Start Pedestal %  
Start Time  
40  
7
Stop Pedestal %  
Stop Time  
0
0
Current Limit Level  
3.5 *FLC  
Current Limit Time  
S
Current Limit Level 7.8125 *FLC  
Optimise Rate  
Current Limit Time  
25  
S
Optimise Rate  
Auto Pedestal  
Auto Bypass  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto Pedestal  
Auto Bypass  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto End Start  
Soft Stop Smoothing  
Auto End Start  
Soft Stop Smoothing  
Auto 3MC  
Auto 3MC  
Low Voltage SoftStop  
Low Voltage SoftStop  
Name  
Large Pump  
Name  
Rotary Compressor  
%
S
%
S
%
S
%
S
Start Pedestal %  
Start Time  
10  
7
Stop Pedestal %  
Stop Time  
10  
45  
25  
Start Pedestal %  
Start Time  
35  
7
Stop Pedestal %  
Stop Time  
0
0
Current Limit Level  
3.5 *FLC  
Current Limit Time  
S
Current Limit Level  
3.5 *FLC  
Current Limit Time  
25  
S
Optimise Rate  
Optimise Rate  
Auto Pedestal  
Auto Bypass  
Low Voltage SoftStop  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto Pedestal  
Auto Bypass  
Low Voltage SoftStop  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto End Start  
Soft Stop Smoothing  
Auto End Start  
Soft Stop Smoothing  
Auto 3MC  
Auto 3MC  
Name  
Low Inertia Fan  
Name  
Crusher  
%
S
%
S
%
S
%
S
Start Pedestal %  
Start Time  
30  
15  
Stop Pedestal %  
Stop Time  
0
0
Start Pedestal %  
Start Time  
40  
3
Stop Pedestal %  
Stop Time  
0
0
Current Limit Level  
3.5 *FLC  
Current Limit Time  
30  
S
Current Limit Level  
3.5 *FLC  
2.8125  
Auto 3MC  
Current Limit Time  
60  
S
Optimise Rate  
Optimise Rate  
Auto Pedestal  
Auto Bypass  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto Pedestal  
Auto Bypass  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto End Start  
Soft Stop Smoothing  
Auto End Start  
Auto 3MC  
Low Voltage SoftStop  
Low Voltage SoftStop  
Soft Stop Smoothing  
Name  
High Inertia Fan  
Name  
Grinder  
%
S
%
S
%
S
%
S
Start Pedestal %  
Start Time  
40  
3
Stop Pedestal %  
Stop Time  
0
0
Start Pedestal %  
Start Time  
40  
3
Stop Pedestal %  
Stop Time  
0
0
Current Limit Level 2.8125 *FLC  
Optimise Rate  
Current Limit Time  
60  
S
Current Limit Level 2.8125 *FLC  
Optimise Rate  
Current Limit Time  
60  
S
Auto Pedestal  
Auto Bypass  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto Pedestal  
Auto Bypass  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto End Start  
Soft Stop Smoothing  
Auto End Start  
Soft Stop Smoothing  
Auto 3MC  
Auto 3MC  
Low Voltage SoftStop  
Low Voltage SoftStop  
Name  
Conveyor  
Name  
High Torque Start  
%
S
%
S
%
S
%
S
Start Pedestal %  
Start Time  
10  
10  
Stop Pedestal %  
Stop Time  
0
7
Start Pedestal %  
Start Time  
60  
3
Stop Pedestal %  
Stop Time  
0
0
Current Limit Level  
3.5 *FLC  
Current Limit Time  
30  
S
Current Limit Level  
4.375 *FLC  
Current Limit Time  
12  
S
Optimise Rate  
Optimise Rate  
Auto Pedestal  
Auto Bypass  
Low Voltage SoftStop  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto Pedestal  
Auto Bypass  
Low Voltage SoftStop  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto End Start  
Soft Stop Smoothing  
Auto End Start  
Soft Stop Smoothing  
Auto 3MC  
Auto 3MC  
Name  
Reciprocating Compressor  
45  
%
S
%
S
Start Pedestal %  
Start Time  
Stop Pedestal %  
Stop Time  
0
0
3
Current Limit Level  
3.5 *FLC  
Current Limit Time  
25  
S
Optimise Rate  
15  
Auto Pedestal  
Auto Bypass  
Low Voltage SoftStop  
Auto Jog  
Auto Stop  
Auto End Stop  
Auto End Start  
Soft Stop Smoothing  
Auto 3MC  
4-2 Parameter Index  
MN850  
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Advanced Menu  
Block Title  
Advanced  
Parameter  
Description  
Current  
Rated Current (View Only) this value is the continuous current rating of the control.  
Low Current If on, activates low current trip protection. Useful to detect a low current  
condition (broken belt, coupling, pump etc.) on driven equipment.  
Low Current Level The value of the low current trip detection. Value can be 0 to 100%  
of the Rated Current parameter value. Parameter 28.  
Low Current Time The number of power cycles the motor current is allowed to remain  
below the low current level before a low current trip occurs. Value can be 5 to 255  
cycles. Parameter 29.  
C/L Time Out If on, allows current limit time out trip (active).  
Current Limit The value of the current limit trip detection. Value can be 1 to 7.9 times  
the Rated Current parameter value. Parameter 30.  
Limit Time Out The number of seconds  
Value can be 0 to 255 seconds. Parameter 31.  
Shearpin If on, Shearpin protection is active. Useful to detect a high current condition  
(such as a jammed conveyor or press) on driven equipment.  
Shearpin Level The value of the high current Shearpin trip detection. Value can be 1 to  
5 times the Rated Current parameter value. Parameter 32.  
Shearpin Time The number of power cycles the motor current is allowed to remain  
above the low shearpin level before a Shearpin trip occurs. Value can be  
cycles. Parameter 33.  
Overload Level Provides overload protection for SCRs. (Not for motor thermal  
overload). The value of the overload current trip detection. Value can be 0.6 to 2  
times the Rated Current parameter value. Parameter 34.  
Overload Delay A numerical value that represents the time and current characteristics  
for overload integration. Value can be 10 to 140. Parameter 35.  
Note: For applications that have frequent Start/Stop sequences, it is necessary to  
maintain 115VAC at terminals X1 and X2. Removing 115VAC from these  
terminals resets the overload delay integration to 140.  
Overload Set Point  
Seconds  
to Trip  
Delay = 140  
Delay = 80  
Delay =30  
Delay = 10  
Overload Level (Motor Current x N)  
Optimise Rate  
A numerical value that represents the rate at which the motor voltage is reduced during  
optimizing. When this number is large, improves efficiency on stable loads. A lower  
number for unstable loads will reduce speed variations. Value can be 4 to 30.  
Parameter 19.  
Kick Start  
If on, Kick Start feature is active.  
Kick Pedestal  
For traction or frozenloads, this boost pulse of higher voltage helps the load to start  
moving. Value can be 60% to 90% of line voltage. Parameter 13.  
Kick Time  
Number of cycles duration the kick pedestal voltage is applied. Value can be 10 to 40.  
Parameter 14.  
Dwell Time  
Low Volts Stop  
Number of seconds that full voltage is applied to the motor before optimizing begins (if  
optimizing is selected). Value can be 1 to 255. Parameter 15.  
Allows decel to zero volts (not just to the level of the start pedestal). (Sometimes helpful  
for unstable loads or regeneration).  
MN850  
Parameter Index 4-3  
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Advanced Menu Continued  
Block Title  
Parameter  
Description  
Advanced  
Contactor Delay  
A delay is required when an input contactor is energized by the softstart Runrelay.  
This delay allows bouncing contactor armature to settle during the Closedposition.  
Value can be 20 to 800 milliseconds. Parameter 71.  
Trip Sensitivity  
A numerical value that sets the sensitivity level for all trips. A larger number provides  
slower response to a trip. Value can be 1 to 15. Parameter 72.  
Station Number  
Language  
Reserved for future use.  
English (44) is preset. Value can be 1 to 255. Parameter 2.  
Firing Mode  
Sets the SCR firing mode to one of the following: (Value can be 0 to 3. Parameter 7.)  
0 Normal, 3 phase induction motor, SoftStart conducting line current.  
1 Induction motor (Delta), SoftStart conducting phase current.  
2 Closed loop phase control for electrical loads other than motors.  
Current sensing is active but current protection is disabled.  
3 Open loop phase control for electrical loads other than motors.  
Current sensing is disabled and current protection is disabled.  
Note: Modes 2 and 3 are not suitable for motor loads and may damage motor and  
control. These modes are suitable for electrical loads such as lighting or  
resistive heaters.  
Stop Smoothing  
Adjustable voltage ramp for smooth deceleration. Motor current is monitored and stop  
smoothing will continue until the Start Pedestal value is reached. Value can be 1 to  
255. Parameter 122.  
Auto Features Menu  
Block Title  
Parameter  
Description  
Auto Features  
Settings  
Display starting method, either Keypad or Remote. Also displays operating mode  
(Optimizing or Full Voltage).  
Auto Jog  
If on, and Stop is commanded within 0.5 seconds of a start command the control will  
change to jog mode. In jog mode, the decel ramp is changed to 0 seconds.  
Repeatedly pushing the Start/Stop button will cause the motor to move slightly in the  
same direction.  
Auto Pedestal  
Auto End Start  
If on, will automatically increase the voltage pedestal to start motor rotation.  
If on and motor reaches full speed during ramp up, the start ramp will be terminated and  
full voltage will be applied to the motor.  
Auto Stop  
If on, automatically activates stop smoothing if required by the load during stop for  
smooth deceleration of the load.  
Auto End Stop  
Auto Bypass  
Auto 3MC  
If on, detects a stalled or stopped motor and terminates ramp down (turns SCRs off)  
during stop.  
If on, control detects the bypass contactor closing and automatically disables shorted  
SCR detection (activates shorted SCR detection when contactor opens).  
If on, reduces inrush current by allowing the motor voltage to build up from zero to the  
set voltage pedestal over 2 to 3 cycles. On Stickyor Tractiontype loads, this  
mode allows dynamic boost and stall sensing to start load.  
Auto Off  
Off No effect.  
On changes the setting of all Autoparameters. If on, the parameter turns off etc.  
Stop Smoothing  
If on, allows motor deceleration smoothing (see Stop Smoothing Rate, Advanced menu).  
4-4 Parameter Index  
MN850  
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Permanent Store Menu  
Block Title  
Parameter  
Description  
Permanent Store  
Save Parameters  
Saves all parameter values and overwrites previously saved values.  
Power on  
Parameters  
Restores all parameter values to the values that were last saved (last power up cycle).  
All parameter values changes since last power up are overwritten. Display blinks  
twice to confirm reset is complete.  
Default Parameters Restores all parameter values to the factory settings. All parameter values are  
overwritten. Display blinks twice to confirm reset is complete.  
Password Menu  
Block Title  
Parameter  
Description  
Password  
Enter Password  
If a password is set, it prevents unauthorized users from changing any parameter  
values. Value can be 0 to 255 (0=no password). If the correct password is entered,  
all parameters are unlocked. Parameter 5.  
Change Password If the parameters are unlocked, a new password can be set using this option. Value can  
be 0 to 255 (0=no password). Parameter 5.  
Note: Remember your password. Removing power etc. will not clear the  
password. When a password is set, use Enter Password to unlock  
the parameters.  
Inputs Menu  
Block Title  
Parameter  
Description  
Inputs  
Digital i/p1  
Input 1 is available at J10, terminals S1 (hot) and S0 (neutral). May be set as follows:  
Map to Value can be parameter 0 112. Parameter 65.  
Bit number Press Optimiseto shift one position to the left. Press “ ” to change that  
character to a logic 1. Press “ ” to change that character to a logic 0.  
The value is stored in Parameter 66.  
Polarity Value of each of the 8 I/O bits can be Positive or Inverse Logic. The value is  
stored in Parameter 54.  
Digital i/p2  
Digital i/p3  
Temperature i/p  
420ma i/p  
DC i/p  
Reserved for future use.  
Reserved for future use.  
Reserved for future use.  
Reserved for future use.  
Reserved for future use.  
MN850  
Parameter Index 4-5  
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Outputs Menu  
The internal LED, four digital outputs and two analog outputs can be individually defined  
as desired. Each digital output can be assigned positive or inverse logic.  
Block Title  
Parameter  
Description  
Outputs  
LED  
Available only on size 2 and 3 controls, this Red LED can represent a variety of status  
conditions. The LED is located on the control board.  
K1  
Relay output with Form C (1 N.O. and 1 N.C.) single pole, double throw contacts.  
Contacts are rated for 10Amp @ 250VAC.  
Parameter 57 contains the parameter number of the status parameter assigned to K1.  
Parameter 58 contains the bit location for the K1 output.  
Parameter 54 contains the polarity value for the K1 output.  
K2  
Relay output with Form C (1 N.O. and 1 N.C.) single pole, double throw contacts.  
Contacts are rated for 10Amp @ 250VAC.  
Parameter 59 contains the parameter number of the status parameter assigned to K1.  
Parameter 60 contains the bit location for the K1 output.  
Parameter 54 contains the polarity value for the K1 output.  
K3  
Available with optional I/O expansion board. Refer to MN851 for information.  
Available with optional I/O expansion board. Refer to MN851 for information.  
Available with optional I/O expansion board. Refer to MN851 for information.  
Available with optional I/O expansion board. Refer to MN851 for information.  
Available with optional I/O expansion board. Refer to MN851 for information.  
K4  
Analog o/p1  
Analog o/p2  
Voltage o/p  
Parameters Menu  
Allows quick access to parameter values. Useful to view status or change a value of any  
programmable parameter. Refer to Appendix B for parameter numbers and values.  
Block Title  
Parameter  
P1 P20  
Description  
Parameters  
Entry point for viewing or programming parameters P1 P20.  
Entry point for viewing or programming parameters P21 P40.  
Entry point for viewing or programming parameters P41 P60.  
Entry point for viewing or programming parameters P61 P80.  
Entry point for viewing or programming parameters P81 P100.  
P21 P40  
P41 P60  
P61 P80  
P81 P100  
P101 P120  
P121 P125  
Entry point for viewing or programming parameters P101 P120.  
Entry point for viewing or programming parameters P121 P125.  
Trips Menu  
This menu is used to view the last five fault trip conditions. Additional information about  
fault trips may be found in the troubleshooting section of this manual.  
Block Title  
Parameter  
Description  
Trips  
116 External Trip Use the “ ” and “ ” keys to scroll through the fault trip list. In this example,  
1 = the most recent trip (5 would indicate oldest).  
16 = the code for the fault trip.  
External Trip = the text message for the fault trip.  
4-6 Parameter Index  
MN850  
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Mapping to an Output Relay Most status values are stored in memory as status words.  
The following is a list of these status words:  
Parameter  
Description  
Status 1  
(128)  
(64)  
(32)  
(16)  
(8)  
(4)  
(2)  
(1)  
10000000  
01000000  
00100000  
00010000  
00001000  
00000100  
00000010  
00000001  
8
9
Stopping  
Energy  
Saving  
Full  
Conduction  
Dwell  
Top of  
Ramp  
Current  
Limit  
Starting  
Stopped  
Alarm  
Status 2  
4-20mA level DC I/p level Inhibit Start Noise on  
>P46  
Forced  
Override  
Stall  
Overload  
Integrating  
>P48  
Power  
10  
51  
Status 3  
Red LED  
Input 3  
Input 2  
Input 1  
Relay K4  
Relay K3  
Relay K2  
Relay K1  
(Not Used)  
User Flag 1  
(for first Param. set) Starting  
Remote  
Not Used  
Thermistor  
Selector  
Low  
Current  
Selector  
Shearpin  
Selector  
Overload  
Selector  
Current  
Limit  
Timeout  
Kickstart  
Selector  
52  
53  
54  
User Flag 2  
Zero Start  
Second  
Parameter  
Set  
Main  
Remote  
Keypad  
Not Global  
Enable 2  
Not Global  
Enable 1  
Low  
(for first Param. set) Time  
Contactor  
Start/Stop  
Start/Stop  
Voltage  
SoftStop  
User Flag 3  
(for first Param. set) Pedestal  
Auto  
Auto End  
Start  
Auto Stop  
Input 2  
Auto End  
Stop  
Inverted  
Control  
Input  
User  
Current  
Limit  
User Flag 2 User Flag 1  
Polarity  
Polarity  
I/O Polarity  
Red LED  
Polarity  
(Unused)  
Input 3  
Input 1  
Relay K4  
Relay K3  
Relay K2  
Relay K1  
86  
95  
Auto Config 2  
User Flag 1  
Auto  
Auto  
Auto Stop  
Auto  
Auto Jog  
Auto  
Auto 3MC  
(Unused)  
Pedestal  
Endstart  
Endstop  
Bypass  
Remote  
(for 2nd Param. set) Starting  
Not Used  
Thermistor  
Selector  
Low  
Current  
Selector  
Shearpin  
Selector  
Overload  
Selector  
Current  
Limit  
Timeout  
Kickstart  
Selector  
96  
User Flag 2  
Zero Start  
Second  
Parameter  
Set  
Main  
Contactor  
Remote  
Start/Stop  
Keypad  
Start/Stop  
Not Global  
Enable 2  
Not Global  
Enable 1  
Low  
Voltage  
SoftStop  
(for 2nd Param. set) Time  
112  
Status 4  
Thermal  
Switch  
Overload  
Timeout  
Thermistor  
Under  
Current  
Shearpin  
RYB Phase 60Hz  
Sequence  
Each parameter is an 8 bit word and is used as a bit mask. Any bit of each word can be  
assigned to an output relay (K1, K2, K3 or K4).  
MN850  
Parameter Index 4-7  
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Parameter Descriptions  
Version 5MC (4/2/01)  
Title  
Parameter  
P#  
P0  
Parameter  
Dummy Parameter  
Station Number  
Country  
Description  
Map unused bits, parameters etc.  
Unused  
P1  
P2  
P3  
P4  
P5  
P6  
Determines the language used by the display. 44=English.  
Manufacturers product code for the Soft-Start software.  
Version of the software.  
Software Type  
Software Version  
Password Value  
Firing Mode  
Password  
Advanced  
Allows you to set and enter a password.  
0= Normal motor (outside delta or star)  
1= Delta (inside delta, no optimization)  
2= Closed loop phase control  
3= Open loop phase control  
Basic  
P7  
P8  
Protection Mode  
Status 1  
Determines the fault protection method.  
0=  
64= Full protection with full volts after top of ramp.  
128= Full protection during start then bypass (no protection)  
192= Full protection + Optimization  
Input phase loss detection only.  
Parameters  
Definition (Preset Value, all = 0)  
Bit0= Stopped (1=Start/stop signal inactive, SCR's Off, Main contactor open).  
Bit1= Starting (1= Starter is in Start Ramp).  
Bit2= Current Limit (1=Motor current has reached limit and is being held).  
Bit3= Top of Ramp (Full volts) (1=start ramp and current limit is complete).  
Bit4= Dwell (1=the time at the end of the start ramp when the motor is  
held at full volts before optimizing to stabilize the load).  
Bit5= Full Conduction- (1= thyristors in continuous conduction).  
Bit6= Energy Saving (1=Motor pf is monitored and volts are adjusted to optimum)  
Bit7= Stopping (1=the stop ramp is active).  
P9  
Status 2  
Definition (Preset Value, all = 0)  
Bit0= Alarm (1=fault is detected and a trip has occurred)  
Bit1= Overload Integrating (1=overcurrent is detected and is integrating)  
Bit2= Stall (1=a stall condition is detected, motor speed decreasing).  
Bit3= Forced Override (1= Optimizing not available even if selected because  
motor current>80%FLA).  
Bit4= Noise (1=Noise on AC input power mains is detected).  
Bit5= Inhibit Start (1=Start is inhibited for a period to maintain duty cycle).  
Bit6= DC I/P level reached (1= DC > P48).  
Bit7= 4-20mA I/P level reached (1= 4-20mA > P46).  
P10  
P11  
Status 3  
Definition (Preset Value, all = 0)  
Bit0= K1 (1= K1 Active).  
Bit1= K2 (1= K2 Active).  
Bit2= K3 (1= K3 Active).  
Bit3= K4 (1= K4 Active).  
Bit4= Starter I/P 1 (1= Control Input1 is high).  
Bit5= Starter I/P 2 (1= Control Input2 is high).  
Bit6= Starter I/P 3 (1= Control Input3 is high).  
Bit7= Red LED status (unused)  
Basic  
Start Pedestal  
Sets the voltage level for the Start of Voltage Ramp". Must be sufficient to allow  
motor to generate a breakaway torque.  
P12  
P13  
P14  
Start Time  
Kick Pedestal  
Kick Time  
Sets the time allowed for motor voltage to equal line voltage.  
Sets the voltage level at the start of the kickstart operation.  
Advanced  
Sets the number of cycles that the P13 voltage is applied. Note that for  
60 Hz, 40 cycles = 667ms. For 50 Hz, 40 cycles = 800ms.  
P15  
P16  
P17  
P18  
Dwell Time  
Stop Pedestal  
Stop Time  
Sets the dwell time allowed after top of ramp is reached.  
Sets the drop in motor voltage for the Stop Voltage Ramp" operation.  
Sets the ramp down time for motor stopping.  
Basic  
Auto Features  
Auto Config  
Auto configuration flags to use with the first parameter set.  
Definition (Preset Value)  
Bit0= Unused  
Bit1= Auto 3MC (1, Auto remove low volt. ramp for high start pedestal).  
Bit2= Auto Bypass (1, Enable Automatic Bypass Contactor detection).  
Bit3= Auto Jog (0, Disable auto jog detect. If 1, a stop request within .5 sec  
of a start request is forced to 0 stop time).  
Bit4= Auto Endstop (0, Do not detect stalled motor at softstop).  
Bit5= Auto Stop (0, Do not detect variations in pf during stop smooth stall).  
Bit6= Auto Endstart (0, Do not detect full speed at start and adjust start ramp).  
Bit7= Auto Pedestal (0, Do not detect rotation at start and adjust pedestal).  
Advanced  
P19  
Optimise Rate  
Sets the optimizing response rate. This parameter helps to stabilize small slip speed  
motors with low inertia loads. (4=fastest optimizing rate).  
4-8 Parameter Index  
MN850  
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Title  
Parameters  
P#  
P20  
Parameter  
Reference PF (Power Factor)  
Present PF (Power Factor)  
Delay Angle (SCR OFF time)  
Maximum Optimizing Delay  
Description  
The calculated power factor to optimize the control loop.  
The present power factor of the motor (load).  
P21  
P22  
P23  
The period (in degrees) that the thyristors are in the OFF state.  
Sets the maximum delay angle (max degrees that the thyristors are  
OFF) used during the optimizing mode.  
P24  
P25  
P26  
Rated Current (High Byte Hundreds)  
Rated Current (Low Byte Units)  
The current rating of the softstart set by manufacturer.  
The current rating of the softstart set by manufacturer.  
The load current. (Always shown as phase current).  
Running Current Amps  
(RatedCurrent) x (7.96875)  
32  
P27  
P28  
Peak Start Current (measured at last start) The maximum current used during the last startup.  
Low Current Level (undercurrent trip)  
(scaling = 0.03125)  
Sets the under current trip level. (The low current level flag is  
updated even if the low current trip is disabled).  
Advanced Current  
P29  
P30  
P31  
Low Current Time (delay before trip)  
The number of cycles allowed for a low current level condition (P28)  
to exist before tripping. For 60 Hz, 40 cycles = 667ms.  
For 50 Hz, 40 cycles = 800ms.  
Current Limit Level (scaling = 0.03125)  
(RatedCurrent) x (7.96875)  
Sets the level that the start ramp is held. (The start ramp is only held  
if the P30 value is reached. The current decreases as motor speed  
increases allowing the ramp to continue).  
32  
Current Limit Time (delay before trip)  
The time allowed for start current to equal P30 value before tripping.  
Note that for 60 Hz, 40 cycles = 667ms.  
For 50 Hz, 40 cycles = 800ms.  
P32  
P33  
Shearpin Level (overcurrent trip)  
Shearpin Time (delay before trip)  
Sets the over current trip level. Shearpin operation begins after  
startup is complete.  
The number of cycles allowed for an overcurrent condition before  
tripping (only when shearpin flag P51, Bit3=1). For 60 Hz, 60 cycles  
= 1second. For 50 Hz, 50 cycles = 1second.  
P34  
P35  
P36  
P37  
P38  
P39  
P40  
Overload Level (SCR protection)  
Sets the overload current level as a portion of FLA. (P34 is always  
active but P30 is only active during motor starting.)  
Overload Delay (delay before trip)  
The time allowed for an overload condition before tripping. For 60  
Hz, 60 cycles = 1second. For 50 Hz, 50 cycles = 1second.  
% Overload (status only)  
The integration of the CurrentTime product represented as a % of a  
value that was preset by the manufacturer.  
Parameters  
Chassis Temp  
Pot1  
The heatsink temperature. When the temperature exceeds a  
threshold value, P37 value will change from <20 to >200.  
The value of RV1 on the control card. 255=fully CW setting for  
5VDC input. (Not applicable for keypad operation).  
Pot2  
The value of RV2 on the control card. 255=fully CW setting for  
5VDC input. (Not applicable for keypad operation).  
Pot3  
The value of RV3 on the control card. 255=fully CW setting for  
5VDC input. (Not applicable for keypad operation).  
P41  
P42  
DC I/P  
012V input for load monitoring or phase angle setpoint etc.  
Thermistor  
Monitors the Thermistor I/P (standard motor thermistor). The values  
are not all that useful as thermistors act much like a switch.  
P43  
420mA I/P  
Monitors the 4 to 20mA input. Note this input is referenced to the  
PCB 0V and so cannot be used with daisy chained sensors.  
P44  
P45  
P46  
P47  
P48  
P49  
P50  
TEMP Trip Level  
420mA MAP  
The value at which Parameter 37 causes a trip.  
Value is the Parameter to which the 420mA data is sent.  
Value is the level at which the 420mA level bit will be set.  
Value is parameter to which the DC input data is sent.  
Value is the level at which the DCI/P level bit will be set.  
The value is the parameter that is the source for DAC 1 (010VDC).  
The value is the parameter that is the source for DAC 2 (010VDC).  
420mA Set Level  
DC Input Map  
Set Level DC I/P  
MAP DAC O/P 1  
MAP DAC O/P 2  
MN850  
Parameter Index 4-9  
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Title  
Parameters  
Continued  
P#  
P51  
Parameter  
Description  
User Flags 1  
Note that these bits operate with P52 bit 6 (param group selector). This lets you set  
a primary and secondary group value: e.g. P14: Kick Time 1 (primary);  
P82: Kick Time 2 (secondary).  
Definition (Preset Value)  
Bit0= Kickstart selector (0, do not select kickstart)  
Bit1= Current limit timeout (1, trip on timeout)  
Bit2= Overload selector (1, selects overload operation)  
Bit3= Shearpin selector (1, selects shearpin operation)  
Bit4= Low current selector (0, do not select low current operation)  
Bit5= Thermistor selector (0, do not select thermistor operation)  
Bit6= Not Used  
Bit7= Remote input selector (1, start/stop by remote terminals) (See P52 Bit4)  
P52  
P53  
P54  
User Flags 2  
User Flags 3  
I/O Polarity  
Definition (Preset Value)  
Bit0= Low voltage stop selector (0, do not select low voltage part of stop ramp)  
Bit1= Not global enable 1 - active low (0, not active signal from terminal)  
Bit2= Not global enable 2 - active low (0, not active signal from bus)  
Bit3= Keypad Start/Stop (0, Off)- (Available when P51 Bit7=0)  
Bit4= Remote Start/Stop (0, Off)- (Available when P51 Bit7=1)  
Bit5= Main contactor selector (0, Off)- (use with a relay)  
Bit6= Parameter group selector (0, Off= Group 1)  
Bit7= Zero Start Time (0, do not use full voltage at motor start)  
Definition (Preset Value)  
Bit0= User Flag 1 Polarity (1, positive)  
Bit1= User Flag 2 Polarity (1, positive)  
Bit2= User Current limit (0, do not request a start ramp hold)  
Bit3= User trip (0, do not request a trip)  
Bit4= Invert Controller Input (1, set point source input is inverted in servo loop)  
Bit5= Inhibit restart (0, inhibited restart control is disabled)  
Bit6= Thermal Switch 2 Enable (0, Secondary thermal control is disabled)  
Bit7= Unused  
Determines the polarity of the digital inputs and outputs.  
A Bit set=0; is negative logic. A Bit set=1; is positive logic.  
Example:  
P54, Bit0=1 (K1 mapped to Main Contactor), P57=52,  
P58=00100000 P52, Bit 5=1 will cause K1 to close.  
Definition (Preset Value)  
Bit0= Relay K1 (1, positive)  
Bit1= Relay K2 (1, positive)  
Bit2= Relay K3 (1, positive)  
Bit3= Relay K4 (1, positive)  
Bit4= Control Input 1 (1, positive)  
Bit5= Control Input 2 (1, positive)  
Bit6= Control Input 3 (1, positive)  
Bit7= Led (RED) Unused  
P55  
P56  
P57  
MAP LED  
Unused  
Unused  
LED MASK  
Map K1 To (Parameter)  
The parameter number that will control Relay K1. The preset is P52:  
User Flags 12. (P57 operates with P58). (Mapped to means  
electronic transfer of the analog value.)  
P58  
K1 Bit Mask (P57 bit selected for K1)  
Sets the bit in the parameter selected by P57 that operates the relay  
K1 on the control card. The preset is P52:User Flags 12, Bit5 (main  
contactor). (P58 operates with P57).  
7 6 5 4 3 2 1 0 Bits  
1 0 0 0 0 0 0 0  
0 1 0 0 0 0 0 0  
0 0 1 0 0 0 0 0 (Preset)  
0 0 0 1 0 0 0 0  
0 0 0 0 1 0 0 0  
0 0 0 0 0 1 0 0  
0 0 0 0 0 0 1 0  
0 0 0 0 0 0 0 1  
P59  
Map K2 To (Parameter)  
The parameter number that will control Relay K2. The preset is P8:  
Status 1. (P59 operates with P60). (Mapped to means electronic  
transfer of the analog value.)  
4-10 Parameter Index  
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Title  
P#  
P60  
Parameter  
Description  
K2 Bit Mask (P59 bit selected for K2)  
Sets the bit in the parameter selected by P59 that operates the relay  
K2 on the control card. The preset is P8:Status 1, Bit3 (Top of Ramp  
or Full Volts). (P60 operates with P59).  
Parameters  
Continued  
7 6 5 4 3 2 1 0 Bits  
1 0 0 0 0 0 0 0  
0 1 0 0 0 0 0 0  
0 0 1 0 0 0 0 0  
0 0 0 1 0 0 0 0  
0 0 0 0 1 0 0 0 (Preset)  
0 0 0 0 0 1 0 0  
0 0 0 0 0 0 1 0  
0 0 0 0 0 0 0 1  
P61  
MAP K3 TO (Parameter)  
Value is the destination parameter number for the K3 bit.  
Parameter 62 is the mask for P61 (Map K3 To).  
P62  
P63  
K3 BIT MASK  
Parameter 62 is the mask for P61 (Map K3 To).  
MAP K4 TO (Parameter)  
Value is the destination parameter number for the K4 bit.  
Parameter 64 is the mask for P63 (Map K4 To).  
P64  
P65  
K4 BIT MASK  
Parameter 64 is the mask for P63 (Map K4 To).  
Map I/P1 To (Parameter)  
The parameter number that will control Input 1 on the control card.  
The preset is P52: User Flags 12. (Parameter 66 is the mask for  
P65, Map I/P1 To). (Mapped to means electronic transfer of the  
analog value.)  
P66  
I/P1 Bit Mask (P65 bit selected for I/P1)  
Sets the bit in the parameter selected by P65 that operates Input 1 of  
the control card. The preset is P52:User Flags 12, Bit4 (Board  
Start/Stop). (Parameter 66 is the mask for P65, Map I/P1 To).  
7 6 5 4 3 2 1 0 Bits  
1 0 0 0 0 0 0 0  
0 1 0 0 0 0 0 0  
0 0 1 0 0 0 0 0  
0 0 0 1 0 0 0 0 (Preset)  
0 0 0 0 1 0 0 0  
0 0 0 0 0 1 0 0  
0 0 0 0 0 0 1 0  
0 0 0 0 0 0 0 1  
P67  
Map I/P2 To (Parameter)  
The parameter number that will control Input 2 on the control card.  
The preset is P0. (Parameter 68 is the mask for P67, Map I/P2 To).  
(Mapped to means electronic transfer of the analog value.)  
P68  
P69  
I/P2 Bit Mask (P67 bit selected for I/P2)  
Map I/P3 To (Parameter)  
Parameter 68 is the mask for P67, Map I/P2 To.  
The parameter number that will control Input 3 on the control card.  
The preset is P0. (Parameter 70 is the mask for P69, Map I/P3 To).  
(Mapped to means electronic transfer of the analog value.)  
P70  
I/P3 Bit Mask (P69 bit selected for I/P3)  
Parameter 70 is the mask for P69, Map I/P3 To.  
MN850  
Parameter Index 4-11  
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Title  
P#  
P71  
Parameter  
Description  
Contactor Delay (after start command)  
Sets the delay time between the request to actuate K1 and the start  
of firing the thyristors.  
Advanced Current  
P72  
P73  
Trip Sensitivity (1=fastest trip)  
Last Trip (Most Recent Trip)  
Unused  
P73 stores the most recent trip code for the most recent fault. Trip  
code definitions are as follows:  
0
Not Used  
Phase Loss Fault. One or phases of the incoming three phase AC power is  
missing. Check fuses etc.  
1
2
Thermal Switch Fault. A thermal switch (fan cooled units only) detected an over  
temperature condition. P51 (or P95) bit 5 enabled.  
3 * Thyristor Signal Fault. Thyristor control signal fault.  
4 * Thyristor Firing Fault. One or more thyristors not firing.  
5 * Thyristor Signal Fault. Thyristor control signal fault.  
6 * Thyristor Signal Fault. Thyristor control signal fault.  
7 * Thyristor Sensing Signal Fault.  
8 * Thyristor Sensing Signal Fault.  
9 * Thyristor Sensing Signal Fault.  
10 * Thyristor Short Circuit. Thyristor shorted across the poles.  
11 Under Current Fault. When Top of Ramp" is reached, P28 (or P87) Low  
Current Level and P29 (or P88) Low Current Time become active. If P51, Bit 4  
is enabled, a fault will occur if the output current is less than P28 for longer  
than the P29 time period.  
12 Current Limit Fault. During start-up, P30 (or P89) Current Limit Level and P31  
(or P90) Current Limit Time are active. If P51, Bit 1 is enabled, a fault will occur  
if the output current exceeds P30 for longer than the P31 time period.  
13 Overload Fault. During normal operation, P34 (or P93) Overload Level and P35  
(or P94) Overload Delay are active. If P51, Bit 2 is enabled, a fault will occur if  
the output current is equal to or greater than P34 for longer than the P35 time  
period.  
14 Shearpin Fault. When Top of Ramp" is reached, P32 (or P91) Shearpin Level  
and P33 (or P92) Shearpin Time become active. If P51, Bit 3 is enabled, a fault  
will occur if the output current is greater than P32 for longer than the P33 time  
period.  
15 Thermistor Fault. Motor is overtemperature.  
16 External Trip.  
*
Contact Baldor if this fault occurs.  
Parameters  
P74  
P75  
P76  
P77  
P78  
2nd Last Trip  
P74 stores the trip code for the fault previous to P73. See P73 for definitions.  
P75 stores the trip code for the fault previous to P74. See P73 for definitions.  
P76 stores the trip code for the fault previous to P75. See P73 for definitions.  
P77 stores the trip code for the fault previous to P76. See P73 for definitions.  
Determines the fault protection method  
3rd Last Trip  
4th Last Trip  
5th Last Trip (Oldest trip)  
Protection Mode 2  
(trips or 2nd param set)  
0=  
Input phase loss detection only.  
64= Full protection with full volts after top of ramp.  
128= Full protection during start then bypass (no protection)  
192= Full protection + Optimization  
P79  
Start Pedestal 2  
(for 2nd param set)  
Sets the voltage level for the Start of Voltage Ramp. Must be  
sufficient to allow motor to generate a breakaway torque.  
P80  
P81  
P82  
Start Time 2 (for 2nd param set)  
Kick Pedestal 2 (for 2nd param set)  
Kick Time 2 (for 2nd param set)  
Sets the time allowed for motor voltage to equal line voltage.  
Sets the voltage level at the start of the kickstart operation.  
Sets the number of cycles that the P81 voltage is applied. Note that  
for 60 Hz, 40 cycles = 667ms. For 50 Hz, 40 cycles = 800ms.  
P83  
P84  
Dwell 2 (for 2nd param set)  
Sets the dwell time allowed after top of ramp is reached.  
Stop Pedestal 2 (for 2nd param set)  
Sets the drop in motor voltage for the Stop Voltage Ramp”  
operation.  
P85  
Stop Time 2 (for 2nd param set)  
Sets the ramp down time for motor stopping.  
4-12 Parameter Index  
MN850  
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Title  
P#  
Parameter  
Description  
Parameters  
Continued  
86  
Auto Config 2 (for 2nd param set)  
Auto configuration flags for the second  
parameter set.  
Definition (Preset Value)  
Bit0= Unused  
Bit1= Auto 3MC (1, enable auto removal of low voltage ramp for  
high start pedestals)  
Bit2= Auto Bypass (1, enable automatic bypass contactor detection).  
Bit3= Auto Jog (0, disable jog detection. If enabled a stop request within  
0.5 second of a start request is forced to 0 stop time).  
Bit4= Auto Endstop (0, disabled. If enabled detect a stalled motor during  
softstop and turn off thyristors).  
Bit5= Auto Stop (0, do not detect variations in pf during stop smooth stall).  
Bit6= Auto Endstart (0, disable detection of full speed during start and  
end of start ramp)  
Bit7= Auto Pedestal (0, disable detection of motor rotation at start with  
pedestal adjustment).  
P87  
P88  
Under Current 2 (for 2nd param set)  
Sets the under current trip level.  
Parameters  
Continued  
Under Current Time 2 (for 2nd param set)  
The time allowed for a low current level condition (P87) to exist  
before tripping. For 60 Hz, 40 cycles = 667ms.  
For 50 Hz, 40 cycles = 800ms.  
P89  
90  
Current Limit 2 (for 2nd param set)  
(for 2nd param set)  
Sets the motor starting current.  
The time allowed for start current to equal P89 value before tripping.  
Note that for 60 Hz, 40 cycles = 667ms.  
For 50 Hz, 40 cycles = 800ms.  
91  
92  
Shearpin 2 (for 2nd param set)  
(for 2nd param set)  
Sets the over current trip level. Shearpin operation begins after  
startup is complete.  
The number of cycles allowed for an overcurrent condition before  
tripping (only when shearpin flag P95, Bit3=1). For 60 Hz, 60 cycles  
= 1second. For 50 Hz, 50 cycles = 1second.  
93  
94  
95  
(for 2nd param set)  
Sets the overload current level as a portion of FLA. (P93 is always  
active but P89 is only active during motor starting.)  
(for 2nd param set)  
The time allowed for an overload condition before tripping. For 60  
Hz, 60 cycles = 1second. For 50 Hz, 50 cycles = 1second.  
User Flags 1 (for 2nd param set)  
Note that these bits operate with P96 bit 6 (param group selector).  
This lets you set a primary and secondary group value.  
Definition (Preset Value)  
Bit0= Kickstart 2 (0, Off)  
Bit1= Current limit selector 2 (1, On)  
Bit2= Overload selector 2 (1, On)  
Bit3= Shearpin selector 2 (0, Off)  
Bit4= Low current selector 2 (0, Off)  
Bit5= Thermistor selector 2 (0, Off)  
Bit6= Unused  
Bit7= Remote starting 2 (1=P96 Bit4) (If 0, 0=P96 Bit 3)  
96  
97  
User Flags 2 (for 2nd param set)  
Definition (Preset Value)  
Bit0= Low voltage Softstop (0, Off)  
Bit1= Not global enable 1(2) (0, Off)  
Bit2= Not global enable 2(2) (0, Off)  
Bit3= Keypad Start/Stop 2 (0, Off)- (Available when P95 Bit7=1)  
Bit4= Remote Start/Stop (0, Off)- (Available when P95 Bit7=0)  
Bit5= Main contactor 2 (0, Off)- (use with a relay)  
Bit6= Second Parameter Set 2 (1, On= Group 2)  
Bit7= Zero Start time 2 (0, Off)  
Flag1 I/P Source Address  
Address of source flag parameter.  
(Parameter 98 is the mask for P97.)  
98  
99  
Flag1 I/P Source Mask  
The bit mask for source flag parameter.  
Flag1 O/P Destination Address  
Address of destination flag parameter.  
(Parameter 100 is the mask for P99.)  
MN850  
Parameter Index 4-13  
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Title  
P#  
100  
Parameter  
Flag1 O/P Destination Mask  
Flag2 I/P Source Address  
Description  
The bit mask for destination flag parameter.  
Parameters  
Continued  
101  
Address of source flag parameter.  
(Parameter 102 is the mask for P101.)  
102  
103  
Flag2 I/P Source Mask  
The bit mask for source flag parameter.  
Flag2 O/P Destination Address  
Address of destination flag parameter.  
(Parameter 104 is the mask for P103.)  
104  
105  
106  
107  
108  
109  
110  
Flag2 O/P Destination Mask  
Loop Input  
The bit mask for destination flag parameter.  
The parameter number used as the source for control loop setpoint.  
The parameter number used as the source for control loop feedback.  
Multiplier for the control loop error signal.  
Loop Feedback  
Error Gain  
Error Divisor  
Divisor for the control loop error signal.  
Max Slope  
The maximum allowed single error in open loop.  
Guard Gap  
The minimum allowed firing delay in both open loop and phase  
control modes. This allows for jitter and power factor of the load.  
111  
112  
User Parameter  
Status 4  
This parameter may be set by the user by the serial link.  
Parameters  
Continued  
Definition (Preset Value, all = 0)  
The unit is using 60Hz parameters  
Bit0=  
Bit1=  
Bit2=  
Bit3=  
Bit4=  
Bit5=  
Bit6=  
Bit7=  
The phase rotation detected at start (RYB Sequence)  
Indicates current is greater than shearpin level  
Indicates current is less than under current level  
Thermistor is overtemperature or I/P's are open circuit  
Current limit has timed out  
Overload has passed trip level  
Heatsink temperature is greater than max allowed  
113  
114  
115  
Drive Type  
Baud Rate  
Selected App  
Unused  
Unused  
Value selected from application table. Not implemented on some  
versions of software.  
116  
5MC Inhibit Time (restart not allowed)  
Number of minutes after stop that restart is not allowed. (Protects  
SCRs for large loads.)  
117  
118  
119  
120  
Command Source  
Unused  
Action On Bus Error  
Preset Parameter Number to Display  
Status 5  
Unused  
Unused  
Definition (Preset Value)  
Thermal Switch 2 Over temp . Prevents re-start if set. (0, Off)  
Bit0=  
121  
User Flags 4  
Definition (Preset Value)  
Unused  
Allow for quicker comms response (0, Off)  
enable Soft stop smoothing for pumps (0, Off)  
Bit0=  
Bit1=  
Bit2=  
122  
SoftStart Smoothing  
Sets the amount of softstart smoothing. This parameter helps  
stabilize jitter caused by unstable loads.  
123  
124  
125  
Reserved for future use.  
Reserved for future use.  
Reserved for future use.  
Unused  
Unused  
Unused  
4-14 Parameter Index  
MN850  
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Section 5  
Troubleshooting  
Safety Notice  
Be sure to read and understand all notices, warning and caution statements in Section 1  
of this manual. If you have any questions about the safe operation of this equipment,  
please contact your Baldor representative before you proceed.  
Preliminary Checks  
Power Off Checks  
In the event of trouble, disconnect all input power to the control and perform these  
preliminary checks.  
1. Check all connections for tightness and signs of overheating.  
2. Check for cracked or damaged insulators and terminal blocks.  
3. Ensure the correct setting of the overload relay.  
4. Check the 115VAC input power.  
5. If one or more SCRs should be replaced, contact Baldor.  
Table 5-1 Fault Trip Messages  
This menu is used to view the last five fault trip conditions. Additional information about  
fault trips may be found in the troubleshooting section of this manual.  
Note: The control is shipped with five fault messages in the log (P73P77). The last  
message is External Trip. There is no software method to clear the fault log.  
Block Title  
Parameter  
Description  
Trips  
1 16 External Trip Use the “ ” and “ ” keys to scroll through the fault trip list. In this example,  
1 = the most recent trip (5 would indicate oldest). Parameters P73 to P77.  
16 = the code for the fault trip.  
External Trip = the text message for the fault trip.  
16 error conditions that cause a fault trip to occur are: (E1 E16)  
1 Phase loss. This is a startup protection fault that indicates single phase power at the  
AC input. This error can also indicate phase unbalance or undervoltage (low voltage).  
2 Too Hot. Heat sink temperature exceeded limit. Possible causes are overload, frequent  
starting, poor ventilation, excessive dirty on heat sink, high ambient temperature or high  
humidity.  
3 SCR Signal. Excessive electrical noise on input power lines.  
4 SCR Firing. SCRs are not responding to firing commands. May be a result of a failed  
control board, voltage spikes on power lines, noise, loose connections or SCR failure.  
5 SCR Signal. Excessive electrical noise on input power lines.  
6 SCR Signal. Excessive electrical noise on input power lines.  
7 SCR Sensing. Loss of the sensing signal from an SCR. May be a result of a failed SCR,  
loss of phase current when running, undervoltage or phase unbalance when running.  
8 SCR Sensing. Loss of the sensing signal from an SCR. May be a result of a failed SCR,  
loss of phase current when running, undervoltage or phase unbalance when running.  
9 SCR Sensing. Loss of the sensing signal from an SCR. May be a result of a failed SCR,  
loss of phase current when running, undervoltage or phase unbalance when running.  
10 SCR Shorted. Shorted SCR is detected. If not using input contactor, it is recommended  
that you map this fault to an output relay to trip the circuit breaker if the error occurs. When  
one phase is shorted, motor can be stopped. However, when two or three phases are  
shorted, the motor cannot be stopped without the input contactor.  
11 Low Current. Motor current is less than full load current level (broken belt or coupling).  
12 C/L Timeout. Motor current exceeded current limit value. Voltage was reduced to limit  
output current but it still exceeded limit for longer than allowed.  
13 Overload. Provides overload protection for SCRs. (Not for motor thermal overload).  
The value of the overload current trip detection was exceeded.  
14 Shearpin. The value of the high current Shearpin trip detection has been exceeded.  
15 Thermistor. Optional with I/O expansion board. Refer to MN851 for information.  
16 External Trip. Optional with I/O expansion board. Refer to MN851 for information.  
MN850  
Troubleshooting 5-1  
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Table 5-2 Troubleshooting Guide  
INDICATION  
CORRECTIVE ACTION  
Unit fails to start  
LED’s on control card are OFF and no error messages displayed:  
1. Verify that 115VAC is present at X1 and X2 terminals.  
2. Verify that 9VAC is present at terminal J2 (see Section 2 cover removal).  
Green power LED is ON and no error messages displayed:  
1. Control board or other component may be defective. Contact Baldor.  
Unit trips during  
start  
1. Check parameter 73 (last trip) error code and isolate source of problem (see Table 5-1).  
2. Verify that all three phases of AC input power and motor power are present (no missing phases).  
3. If input contactor is used, verify AC input power is present at L1, L2 and L3 before the contactor delay time  
is complete. If the SCR’s fire before AC power is present, the “Phase Loss” message is displayed and  
unit will trip.  
4. Verify all connections at the SCR gate connections. (Resistance check: with all power removed, the  
resistance between adjacent Red & Yellow wires at the control card connections can be checked.  
Between pins 1–2, 3–4, 5–8 etc. the resistance should be between 10 – 50 ohms ±20%.  
5. Verify there are no power factor correction capacitors on the output. Power factor correction capacitors may  
only be connected on the line side of the control and must be switched out during starting.  
6. Verify SCR are not shorted (error display “Motor SCR Loss”). (Resistance check: with all power removed,  
the resistance can be checked between adjacent Red to Red wires at the control connections. Between  
pins 1–4 (L3 & T3), 5–8 (L2 & T2) and 9–12 (L1 & T1) the resistance must be greater than 500k ohms.  
7. If the “Shearpin” or “Overload” messages are displayed, verify that the soft–start control is correctly sized.  
8. If the “Too Hot” message is displayed, verify the thermal switch connection (or jumper is installed) at J4.  
9. If the “Sensing Signal” or “SCR Signal” messages are displayed, problem can be excess noise or failure on  
another circuit board. Contact Baldor.  
10. Verify that the motor is less than 328ft.(100m) from the soft–start control.  
Bad start then unit  
trips  
1. Check parameter 73 (last trip) error code and isolate source of problem (see Table 5-1).  
2. Verify that AC input power and motor power wires are not reversed. (The motor will give an initial kick then  
start very roughly.)  
3. Verify all connections at the SCR gate connections. (Resistance check: with all power removed, the  
resistance between adjacent Red & Yellow wires at the control card connections can be checked.  
Between pins 1–2, 3–4, 5–8 etc. the resistance should be between 10 – 50 ohms ±20%.  
4. Verify there are no power factor correction capacitors on the output. Power factor correction capacitors may  
only be connected on the line side of the control and must be switched out during starting.  
5. Verify SCR are not shorted (error display “Motor SCR Loss”). (Resistance check: with all power removed,  
the resistance can be checked between adjacent Red to Red wires at the control connections. Between  
pins 1–4 (L1 & T1), 5–8 (L2 & T2) and 9–12 (L3 & T3) the resistance must be greater than 500k ohms.  
6. Verify that the motor is less than 328ft.(100m) from the soft–start control.  
SCR’s short on  
first start–up  
1. Verify there are no power factor correction capacitors on the output. Power factor correction capacitors may  
only be connected on the line side of the control and must be switched out during starting.  
2. Verify that the soft–start control is correctly sized. Verify the Rated Current, Overload Trip level, and trip  
delay are correct for the application.  
3. Verify that the motor is less than 328ft.(100m) from the soft–start control. Also, verify the motor and motor  
leads are good.  
Unit trips during  
ramp–up  
1. Check parameter 73 (last trip) error code and isolate source of problem (see Table 5-1).  
2. Verify that all three phases of AC input power and motor power are present (no missing phases).  
Check for blown fuse if “Phase Loss” message is displayed.  
3. Verify that the soft–start control is correctly sized. Verify the Rated Current, Overload Trip level, and trip  
delay are correct for the application.  
4. If the “Too Hot” message is displayed, verify the thermal switch connection (or jumper is installed) at J4.  
5-2 Troubleshooting  
MN850  
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Table 5-2 Troubleshooting Guide Continued  
INDICATION  
CORRECTIVE ACTION  
Initial motor kick  
then bad start  
Verify that AC input power and motor power wires are not reversed.  
(The motor will give an initial kick then start very roughly.)  
Current is not  
displayed  
1. Verify the current transformer connections at J3 control terminal.  
2. Verify that the soft–start control is correctly sized.  
Motor does not  
accelerate  
1. Verify the Current Limit parameter value and increase if necessary.  
2. Verify the Ramp Time parameter value and decrease if necessary.  
3. Excessive motor current, decrease load.  
4. Insufficient break away torque. Change pedestal voltage value to allow greater break away torque.  
Fuse(s) blown  
1. Excessive start time.  
2. Fuse undersized. Use only specified fuses for UL short circuit current ratings (see Section 2).  
Cannot change  
starting from  
“Remote” to  
“Keypad”  
Remote start input. Factory preset start input is Programmable Input 1 terminals S1 and S0. If a start voltage has  
been applied to S1 and S0, you cannot change to Keypad until the start command is removed. Therefore,  
remove the start voltage from S1 and S0 and then change to keypad.  
Figure 5-1  
230/460VAC 3 Phase  
5MC–PCB  
L1  
L2  
L3  
5
Red  
Yellow  
1
2
Yellow  
Red  
RUN  
TOR  
3
4
6
3
4
Red  
Yellow  
5
6
Yellow  
Red  
7
8
1
Red  
Yellow  
9
10  
Yellow  
Red  
11  
12  
2
T1  
T2  
T3  
3 Phase  
Motor  
MN850  
Troubleshooting 5-3  
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Electrical Noise Considerations  
All electronic devices are vulnerable to significant electronic interference signals  
(commonly called Electrical Noise). At the lowest level, noise can cause intermittent  
operating errors or faults. From a circuit standpoint, 5 or 10 millivolts of noise may cause  
detrimental operation. For example, analog speed and torque inputs are often scaled at 5  
to 10VDC maximum with a typical resolution of one part in 1,000. Thus, noise of only 5  
mV represents a substantial error.  
At the extreme level, significant noise can cause damage to the drive. Therefore, it is  
advisable to prevent noise generation and to follow wiring practices that prevent noise  
generated by other devices from reaching sensitive circuits. In a control, such circuits  
include inputs for speed, torque, control logic, and speed and position feedback, plus  
outputs to some indicators and computers.  
Relay and Contactor Coils  
Among the most common sources of noise are the coils of contactors and relays. When  
these highly inductive coil circuits are opened, transient conditions often generate spikes  
of several hundred volts in the control circuit. These spikes can induce several volts of  
noise in an adjacent wire that runs parallel to a control-circuit wire. Figure 5-1 illustrates  
noise suppression for AC and DC relay coils.  
Figure 5-1 AC and DC Coil Noise Suppression  
RC snubber  
+
0.47 mf  
33 W  
DC Coil  
-
AC Coil  
Diode  
Control Enclosures  
Motor controls mounted in a grounded enclosure should also be connected to earth  
ground with a separate conductor to ensure best ground connection. Often grounding  
the control to the grounded metallic enclosure is not sufficient. Usually painted surfaces  
and seals prevent solid metallic contact between the control and the panel enclosure.  
Likewise, conduit should never be used as a ground conductor for motor power wires or  
signal conductors.  
Special Motor Considerations  
Motor frames must also be grounded. As with control enclosures, motors must be  
grounded directly to the control and plant ground with as short a ground wire as possible.  
Capacitive coupling within the motor windings produces transient voltages between the  
motor frame and ground. The severity of these voltages increases with the length of the  
ground wire. Installations with the motor and control mounted on a common frame, and  
with heavy ground wires less than 10 ft. long, rarely have a problem caused by these  
motorgenerated transient voltages.  
Analog Signals  
Analog signals generally originate from speed and torque controls, plus DC tachometers  
and process controllers. Reliability is often improved by the following noise reduction  
techniques:  
Use twisted-pair shielded wires with the shield grounded at the drive end only.  
Route analog signal wires away from power or control wires (all other wiring types).  
Cross power and control wires at right angles (90°) to minimize inductive noise  
coupling.  
5-4 Troubleshooting  
MN850  
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Section 6  
Specifications and Product Data  
Identification  
Three Phase Digital SoftStart  
MD 7 016 C B  
Control Type  
MD Multipurpose Digital  
Input Voltage  
7- 208, 230, 460VAC  
8- 230, 460, 575VAC  
Ampere Rating  
009- 9 Amp  
Enclosure  
A- Open Kit  
016- 16 Amp  
023- 23 Amp  
030- 30 Amp  
044- 44 Amp  
059- 59 Amp  
072- 72 Amp  
085- 85 Amp  
105- 105 Amp  
146- 146 Amp  
174- 174 Amp  
202- 202 Amp  
242- 242 Amp  
300- 300 Amp  
370- 370 Amp  
500- 500 Amp  
600- 600 Amp  
750- 750 Amp  
900- 900 Amp  
1100- 1100 Amp  
1200- 1200 Amp  
B- Open Chassis (IP20)  
C- NEMA12 (IP65)  
P- Panel Mount  
Note: Open Chassis meets NEMA Type 1 enclosure  
requirements but does not comply with UL Type  
1 requirement for cable bending space.  
SoftStart Type  
A- Combination controller with:  
S Input circuit breaker  
S Input contactor  
S Motor overload  
S Multipurpose Digital SoftStart  
B- NonCombination controller with:  
S Input contactor  
S Motor overload  
S Multipurpose Digital SoftStart  
C- Controller only  
S Multipurpose Digital SoftStart  
MN850  
Specifications and Product Data 6-1  
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Input Ratings  
Input Voltage Range  
MD7XXX = 208/230/460 VAC +10% to 15%  
MD8XXX = 230/460/575 VAC +10% to 15%  
Phase  
Three Phase  
Input Frequency  
Overload Rating  
Duty Cycle  
60/50 HZ ± 5%  
Continuous 115% of FLA; 350% for 30 seconds.  
Continuous  
Peak Inverse Voltage  
MD7XXX = 1400VAC maximum  
MD8XXX = 1600VAC maximum  
S0, S1  
X1, X2  
12VDC or 24VDC  
115VAC (98 126VAC) or 230VAC (196 253VAC)  
Storage Conditions  
Ambient Temperature:  
Humidity:  
4 to 140°F (-20 to 60 °C)  
0 - 95% RH Non-Condensing  
Operating Conditions  
Enclosure:  
NEMA 1 Wall mounted (Industrial indoor, general purpose)  
For other enclosures, contact Baldor.  
The SCRs generate about 3.3 watts of heat per running amp (motor  
FLA). If the control is mounted in an enclosure, the installer must  
provide fans or blower with sufficient ventilation. Fan or blower  
should be rated for at least 0.8 CFM per ampere of motor FLA rating.  
Baldor provided enclosures are designed to dissipate the heat from  
the SCRs.  
Humidity:  
0 - 85% RH Non-Condensing (not to exceed 50% at 40°C ambient).  
Control Heat Loss  
3.3 Watt per running ampere of input current  
Ambient Operating Temperature:  
32-113°F (0 to +40 °C) enclosed  
32-122°F (0 to +40 °C) open panel  
Altitude:  
Sea level to 3300 Feet (1000 Meters)  
Derate 1% per 330 Feet (100 Meters) above 3300 Feet  
Derating  
Derate Amp rating 1% per 330 Feet (100 Meters) above 3300 Feet  
Derate Amp rating 2% per °C over 40 °C to 60 °C Max  
Output Relays K1 and K2 contacts  
Category AC1, 230VAC, 3A.  
6-2 Specifications and Product Data  
MN850  
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Standard Duty: Agitator, Compressor, Centrifuge, Fan, Blower, Chiller, Escalator, Pump,  
Bandsaw, Low Inertia Fan, Small Pump.  
Medium Duty: Mill, Conveyor, Drilling Press, Reciprocating Compressor, Elevator, Screw  
Feeder, Grinder, Hammer Press, Mixer, Large Pump, High Inertia Fan, Pelletizer, Pulper, Flywheel  
Press, Positive Displacement Pump, Circular Saw, Vibrating Screens.  
Heavy Duty: Rock Crusher, Pulverizer, Separator, Chipper, Screw Compressor.  
HP Ratings  
Output  
Cont.  
Catalog  
Number  
Standard Duty  
460V  
5
Medium Duty  
460V  
5
Heavy Duty  
460V  
Current  
230V  
575V  
230V  
575V  
230V  
575V  
MD7009CB  
MD7016CB  
MD7023CB  
MD7030CB  
MD7044CB  
MD7059CB  
MD7072CB  
MD7085CB  
MD7105CB  
MD7146CB  
MD7174CB  
MD7202CB  
MD7242CB  
MD7300CB  
MD7370CB  
MD7500CB  
MD7600CB  
MD7750CB  
MD7900CB  
MD8009CB  
MD8016CB  
MD8023CB  
MD8030CB  
MD8044CB  
MD8059CB  
MD8072CB  
MD8085CB  
MD8105CB  
MD8146CB  
MD8174CB  
MD8202CB  
MD8242CB  
MD8300CB  
MD8370CB  
MD8500CB  
MD8600CB  
MD8750CB  
MD8900CB  
MD81100CB  
MD81200CB  
9A  
16A  
23A  
30A  
44A  
59A  
72A  
85A  
105A  
146A  
174A  
202A  
242A  
300A  
370A  
500A  
600A  
750A  
900A  
9A  
16A  
23A  
30A  
44A  
59A  
72A  
85A  
105A  
146A  
174A  
202A  
242A  
300A  
370A  
500A  
600A  
750A  
900A  
1100A  
1200A  
5
7.5  
10  
15  
20  
25  
30  
40  
50  
60  
75  
100  
125  
150  
200  
10  
15  
20  
30  
40  
50  
60  
75  
100  
125  
150  
200  
250  
300  
400  
500  
600  
700  
5
10  
15  
20  
30  
40  
50  
60  
75  
100  
125  
150  
200  
250  
300  
400  
500  
600  
700  
800  
900  
7.5  
10  
15  
20  
30  
40  
50  
60  
75  
100  
125  
150  
200  
250  
300  
400  
500  
600  
5
7.5  
10  
15  
20  
30  
5
7.5  
10  
5
7.5  
10  
15  
15  
20  
30  
40  
50  
60  
75  
100  
125  
150  
200  
5
15  
7.5  
10  
20  
30  
15  
40  
20  
50  
30  
60  
40  
75  
50  
60  
75  
100  
125  
150  
200  
100  
125  
150  
200  
250  
300  
400  
500  
7.5  
10  
20  
25  
40  
50  
60  
75  
100  
5
7.5  
10  
20  
30  
40  
50  
60  
75  
125  
5
7.5  
10  
15  
20  
25  
30  
40  
50  
60  
75  
100  
125  
150  
200  
5
7.5  
10  
15  
20  
30  
40  
50  
60  
5
7.5  
10  
20  
30  
40  
50  
60  
100  
5
7.5  
10  
15  
15  
20  
30  
40  
50  
60  
75  
100  
125  
150  
200  
5
7.5  
10  
15  
20  
40  
50  
60  
75  
30  
150  
200  
250  
100  
125  
150  
200  
250  
300  
400  
500  
600  
700  
800  
40  
75  
150  
200  
50  
60  
75  
100  
125  
150  
200  
100  
125  
150  
200  
250  
300  
400  
500  
600  
700  
125  
150  
300  
400  
500  
600  
700  
800  
900  
250  
400  
500  
600  
700  
800  
300  
400  
500  
600  
600  
700  
MN850  
Specifications and Product Data 6-3  
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Mounting Dimensions  
Size 1  
0.23 (M6) Slot  
4 Places  
0.23 (M6) Hole  
4 Places  
Ground  
Ground  
7.68  
(195)  
4.9  
(125)  
1.41  
(36)  
5.9  
(150)  
8.74  
(222)  
Model #  
9  
Weight lb (kg)  
16.1(7.3)  
16.1(7.3)  
16.1(7.3)  
16.1(7.3)  
16.1(7.3)  
18.3(8.3)  
18.3(8.3)  
18.3(8.3)  
18.3(8.3)  
18.3(8.3)  
16  
23  
30  
44  
59  
72  
85  
105  
146  
6-4 Specifications and Product Data  
MN850  
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Mounting Dimensions Continued  
Size 2  
Ground  
0.23 (M6) Hole  
2 Places  
0.23 (M6) Slot  
2 Places  
9.84  
(250)  
10.43  
(265)  
13.38  
(340)  
Model #  
174  
202  
242  
300  
370  
Weight lb (kg)  
34.6(15.7)  
34.6(15.7)  
48.5(22)  
48.5(22)  
48.5(22)  
MN850  
Specifications and Product Data 6-5  
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Mounting Dimensions Continued  
Size 3  
0.39 (M10) Hole  
3 Places  
0.39 (M10) Slot  
3 Places  
1.38(35)  
15.75  
(400)  
3.44  
(87.5)  
9.84  
(250)  
9.84  
(250)  
26.58  
(675)  
Model #  
500  
Weight lb (kg)  
143.3(65)  
143.3(65)  
158.8(72)  
158.8(72)  
600  
750  
900  
6-6 Specifications and Product Data  
MN850  
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Mounting Dimensions Continued  
Size 4  
12.68 (322)  
10.87 (276)  
25 (635)  
24.45 (621)  
5.95  
(151)  
7.88  
(200)  
7.88  
(200)  
3.94  
(100)  
1.9  
7
(50)  
T1, T2, T3  
L1, L2, L3  
m10  
4.13  
(105)  
4.53  
(115)  
7.59 (193)  
7.59 (193)  
6.58  
(167)  
Model #  
Weight lb (kg)  
1100  
1200  
158.8 (72)  
165.4 (75)  
MN850  
Specifications and Product Data 6-7  
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6-8 Specifications and Product Data  
MN850  
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Appendix A  
CE Guidelines  
CE Declaration of Conformity  
Baldor indicates that the products are only components and not ready for immediate or instant use  
within the meaning of Safety law of appliance, EMC Lawor Machine directive.  
The final mode of operation is defined only after installation into the users equipment. It is the  
responsibility of the user to verify compliance.  
The product conforms with the following standards:  
EN 6094742  
Lowvoltage switch gear and control gear Contactors and motor  
starters AC semiconductor motor controllers and starters.  
EMC Conformity and CE Marking  
The information contained herein is for your guidance only and does not guarantee that the  
installation will meet the requirements of the council directive 89/336/EEC.  
The purpose of the EEC directives is to state a minimum technical requirement common to all the  
member states within the European Union. In turn, these minimum technical requirements are  
intended to enhance the levels of safety both directly and indirectly.  
Council directive 89/336/EEC relating to Electro Magnetic Compliance (EMC) indicates that it is the  
responsibility of the system integrator to ensure that the entire system complies with all relative  
directives at the time of installing into service.  
Motors and controls are used as components of a system, per the EMC directive. Hence all  
components, installation of the components, interconnection between components, and shielding and  
grounding of the system as a whole determines EMC compliance.  
The CE mark does not inform the purchaser which directive the product complies with. It rests upon  
the manufacturer or his authorized representative to ensure the item in question complies fully with all  
the relative directives in force at the time of installing into service, in the same way as the system  
integrator previously mentioned. Remember, it is the instructions of installation and use, coupled with  
the product, that comply with the directive.  
Wiring of Shielded (Screened) Cables  
Conductive  
Clamp  
Remove the outer insulation  
to expose the overall screen.  
MN850  
Appendix A-1  
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Using CE approved components will not guarantee a CE compliant system!  
1. The components used in the drive, installation methods used, materials  
selected for interconnection of components are important.  
2. The installation methods, interconnection materials, shielding, filtering and  
grounding of the system as a whole will determine CE compliance.  
3. The responsibility of CE mark compliance rests entirely with the party who  
offers the end system for sale (such as an OEM or system integrator).  
Baldor products which meet the EMC directive requirements are indicated with a CEmark. A duly  
signed CE declaration of conformity is available from Baldor.  
L1  
L2  
Note:  
AC Main  
Supply  
Control  
Wiring shown for clarity of  
grounding method only.  
Not representative of actual  
terminal block location.  
L1 L2 L3 PE  
T1 T2 T3  
Four Wire  
Wye”  
L3  
PE  
Route all power wires  
Motor  
GND  
L1, L2, L3 and Earth  
(Ground) together in  
conduit or cable.  
All shields  
Enclosure Backplane (see Section 2)  
Note: Use shielded cable for control signal wires. Route  
control signal wires in conduit. These wires must be  
kept separate from power and motor wires.  
A-2 Appendix  
MN850  
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EMC Installation Instructions  
To ensure electromagnetic compatibility (EMC), the following installation instructions should be  
completed. These steps help to reduce interference.  
Consider the following:  
Grounding of all system elements to a central ground point  
Shielding of all cables and signal wires  
Filtering of power lines  
A proper enclosure should have the following characteristics:  
A) All metal conducting parts of the enclosure must be electrically connected to the  
back plane. These connections should be made with a grounding strap from  
each element to a central grounding point . ꢀ  
B) Keep the power wiring (motor and power cable) and control wiring separated. If  
these wires must cross, be sure they cross at 90 degrees to minimize noise due  
to induction.  
C) The shield connections of the signal and power cables should be connected to  
the screen rails or clamps. The screen rails or clamps should be conductive  
clamps fastened to the cabinet. ꢁ  
D) The cable to the regeneration resistor must be shielded. The shield must be  
connected to ground at both ends.  
E) The location of the AC mains filter has to be situated close to the drive so the  
AC power wires are as short as possible.  
F) Wires inside the enclosure should be placed as close as possible to conducting  
metal, cabinet walls and plates. It is advised to terminate unused wires to  
chassis ground. ꢀ  
G) To reduce ground current, use at least a 10mm2 (6 AWG) solid wire for ground  
connections.  
Grounding in general describes all metal parts which can be connected to a  
protective conductor, e.g. housing of cabinet, motor housing, etc. to a central  
ground point. This central ground point is then connected to the main plant (or  
building) ground.  
Or run as twisted pair at minimum.  
Cable Screens Grounding  
Cable (Twisted Pair Conductors)  
Conductive Clamp Must contact bare cable shield  
and be secured to metal backplane.  
MN850  
Appendix A-3  
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A-4 Appendix  
MN850  
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Appendix B  
Parameter Values  
Version 5MC (4/2/01)  
Read Only Parameter Values  
Title  
Parameter  
P#  
P0  
Parameter  
Dummy Parameter  
Station Number  
Adjustable Range  
0255  
Factory  
User Setting  
0
P1  
199  
1
P2  
Country  
1255  
44 (England)  
Read Only  
P3  
Software Type  
Factory Set  
Factory Set  
0255  
P4  
Software Version  
Password Value  
Firing Mode  
Read Only  
Password  
Advanced  
Basic  
P5  
0
P6  
03  
0
P7  
Protection Mode  
Status 1  
0192  
192 (Full + Optimize)  
1 (bit 00000001)  
0 (bit 00000000)  
0 (bit 0000000)  
20 (% of line volts)  
5 (seconds)  
75 (% of Line)  
25 Cycles  
Parameters  
P8  
0255  
P9  
Status 2  
099  
P10  
P11  
P12  
P13  
P14  
P15  
P16  
P17  
P18  
P19  
P20  
P21  
P22  
P23  
P24  
P25  
P26  
P27  
P28  
Status 3  
0255  
Basic  
Start Pedestal  
1060%  
Start Time  
1255 seconds  
6090%  
Advanced  
Kick Pedestal  
Kick Time  
1040 cycles  
1255 seconds  
1060%  
Dwell Time  
5 seconds  
Basic  
Stop Pedestal  
10 (% of Line)  
0 seconds  
Stop Time  
0255 seconds  
0255  
Auto Features  
Advanced  
Auto Config.  
6 (bit 00000110)  
5 (for unstable load)  
146.7626 degrees  
146.7626 degrees  
146.7626 degrees  
57.55396 degrees  
Factory Set  
Factory Set  
0 Amps  
Optimise Rate  
430  
Parameters  
Reference PF (Power Factor)  
Present PF (Power Factor)  
Delay Angle (SCR OFF time)  
Maximum Optimizing Delay  
Rated Current (High Byte Hundreds)  
Rated Current (Low Byte Units)  
Running Current Amps  
0147 degrees  
0147 degrees  
0147 degrees  
17147 degrees  
Factory Set  
Factory Set  
0255 Amps  
Peak Start Current (measured at last start) 0255 Amps  
0 Amps  
Advanced Current  
Low Current Level (undercurrent trip)  
100800% of running  
Amps (P24 & P25)  
9.375% of running  
Amps  
P29  
P30  
Low Current Time (delay before trip)  
Current Limit Level (scaling = 0.03125)  
5255 seconds  
50 seconds  
17.96875 (x Ie) Amps  
350% of running  
Amps  
P31  
P32  
P33  
P34  
Current Limit Time (delay before trip)  
Shearpin Level (undercurrent trip)  
Shearpin Time (delay before trip)  
Overload Level (SCR protection)  
5255 seconds  
15 (x Ie) Amps  
5255 cycles  
30 seconds  
3.125 x Ie Amps  
100 cycles  
0.592 (x Ie) Amps  
1.09375 x Ie Amps  
P35  
Overload Delay (delay before trip)  
10140  
140  
Note: (x Ie) means Times the rated current of the control (P24 and P25 values).”  
MN850  
Applications B-1  
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Read Only Parameter Values  
Title  
Parameters  
P#  
P36  
Parameter  
% Overload (status only)  
Chassis Temperature  
Pot1  
Adjustable Range  
Factory  
User Setting  
0100% (100%=Tripped) 0%  
P37  
P38  
P39  
P40  
P41  
P42  
P43  
P44  
P45  
P46  
P47  
P48  
P49  
P50  
P51  
P52  
P53  
P54  
P55  
P56  
P57  
P58  
P59  
P60  
P61  
P62  
P63  
P64  
P65  
P66  
P67  
P68  
P69  
P70  
P71  
P72  
P73  
0255  
0
0255  
0
Pot2  
0255  
0
Pot3  
01  
0
DC I/P  
012  
0VDC  
0
Thermistor  
0255  
420mA I/P  
020.4  
0mA  
30  
TEMP Trip Level  
20255  
0125  
420mA Map  
0 (parameter #)  
10.24mA  
420mA Set Level  
0.0820.32  
0125  
DC Input Map  
0 (parameter #)  
5.019608 VDC  
26 (parameter #)  
22 (parameter #)  
142 (Bit 10001110)  
0 (Bit 00000000)  
19 (Bit 00010011)  
127 (Bit 01111111)  
9 (x Ie)  
Set Level DC I/P  
0.039229.960784  
0125  
Map DAC O/P 1  
Map DAC O/P 2  
0125  
User Flags 1  
0255  
User Flags 2  
0255  
User Flags 3  
0255  
I/O Polarity  
0255  
MAP LED  
0255  
LED MASK  
0255  
1 (x Ie)  
Map K1 To (Parameter)  
K1 Bit Mask (P57 bit selected for K1)  
Map K2 To (Parameter)  
K2 Bit Mask (P59 bit selected for K2)  
Map K3 To (Parameter)  
K3 Bit Mask (P61 bit selected for K3)  
Map K4 To (Parameter)  
K4 Bit Mask (P63 bit selected for K4)  
Map I/P1 To (Parameter)  
I/P1 Bit Mask (P65 bit selected for I/P1)  
Map I/P2 To (Parameter)  
I/P2 Bit Mask (P67 bit selected for I/P2)  
Map I/P3 To (Parameter)  
I/P3 Bit Mask (P69 bit selected for I/P3)  
Contactor Delay (after start command)  
Trip Sensitivity (1=fastest trip)  
Last Trip (Most Recent Trip)  
0125  
52 (Parameter #)  
32 (bit 00100000)  
8 (Parameter #)  
8 (bit 00001000)  
9 (Parameter #)  
1 (bit 00000001)  
9 (Parameter #)  
2 (bit 00000010)  
52 (Parameter #)  
16 (bit 00010000)  
0 (Parameter #)  
0 (bit 00000000)  
0 (Parameter #)  
0 (bit 00000000)  
160 milli seconds  
1
0255  
0125  
0128  
0125  
0.13  
0125  
03  
0125  
0128  
0125  
0128  
0125  
0128  
Advanced Current  
20800milli seconds  
115 (Status Code)  
116 (Status Code)  
0
B-2 Applications  
MN850  
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Read Only Parameter Values  
Title  
Parameters  
P#  
P74  
Parameter  
Adjustable Range  
Factory  
User Setting  
2nd Last Trip  
3rd Last Trip  
4th Last Trip  
116 (Status Code)  
116 (Status Code)  
116 (Status Code)  
116 (Status Code)  
0192  
0
0
0
0
P75  
P76  
P77  
P78  
P79  
P80  
P81  
P82  
P83  
P84  
P85  
P86  
P87  
P88  
P89  
P90  
P91  
P92  
P93  
P94  
P95  
P96  
P97  
P98  
P99  
P100  
P101  
P102  
P103  
P104  
P105  
P106  
P107  
P108  
P109  
P110  
5th Last Trip (Oldest trip)  
Protection Mode 2  
Start Pedestal 2  
192 (Full + Optimize)  
50 (% of line volts)  
5 seconds  
1060%  
Start Time 2  
1255 seconds  
6090%  
Kick Pedestal 2  
75 (% of line volts)  
25 seconds  
Kick Time 2  
1040 seconds  
1255 seconds  
1060 seconds  
0255 seconds  
0255  
Dwell 2  
5 seconds  
Stop Pedestal 2  
10 seconds  
Stop Time 2  
0 seconds  
Auto Config 2  
6 (Bit 00000110)  
0.125 x Ie Amps  
50 seconds  
Under Current 2  
01 (x Ie) Amps  
5255 seconds  
08 (x Ie) Amps  
5255 seconds  
15 (x Ie) Amps  
5255 cycles  
0.52 (x Ie) Amps  
10140 seconds  
0255  
Under Current Time 2  
Current Limit 2  
4 x Ie Amps  
Current Limit Time 2  
Shearpin 2  
15 seconds  
3 x Ie Amps  
Shearpin Time 2  
50 cycles  
Overload Level 2  
1.09375 x Ie Amps  
140 seconds  
134 (Bit 10000110)  
64 (Bit 01000000)  
0 (Parameter #)  
0 (bit 00000000)  
0 (Parameter #)  
0 (bit 00000000)  
0 (Parameter #)  
0 (bit 00000000)  
0 (Parameter #)  
0 (bit 00000000)  
41 (Parameter #)  
26 (Parameter #)  
37  
Overload Delay 2  
User Flags 1 (for 2nd param set)  
User Flags 2 (for 2nd param set)  
Flag 1 I/P Source Address  
Flag 1 I/P Source Mask  
Flag 1 O/P Destination Address  
Flag 1 O/P Destination Mask  
Flag 2 I/P Source Address  
Flag 2 I/P Source Mask  
Flag 2 O/P Destination Address  
Flag 2 O/P Destination Mask  
Loop Input  
0255  
0125  
0128  
0125  
0255  
0125  
020  
0125  
011  
0125  
Loop Feedback  
0125  
Error Gain  
1255  
Error Divisor  
1255  
7
Max Slope  
050  
10  
Guard Gap  
0150  
10  
MN850  
Applications B-3  
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Read Only Parameter Values  
Title  
Parameters  
P#  
P111  
P112  
P113  
P114  
P115  
P116  
P117  
P118  
P119  
P120  
P121  
P122  
P123  
P124  
P125  
Parameter  
Adjustable Range  
Factory  
User Setting  
User Parameter  
Status 4  
0255  
0255  
0255  
04  
0
0 (bit 00000000)  
Drive Type  
Baud Rate  
0
0
Selected App  
09  
0
5MC Inhibit Time (restart not allowed)  
Command Source  
063.75 minutes  
Unused  
03  
0 minutes  
Action On Bus Error  
0
Preset Parameter Number to Display  
Status 5  
0.1125  
0255  
1255  
115  
26 (parameter #)  
0 (bit 00000000)  
0 (bit 00000000)  
5 (for unstable load)  
User Flags 4  
SoftStart Smoothing  
Reserved for future use.  
Reserved for future use.  
Reserved for future use.  
B-4 Applications  
MN850  
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Appendix C  
Replacement Parts  
Voltage Independent Parts  
PART No.  
Description  
SSDTR900  
SSDTR370  
Control power transformer, 944 A & 500900 A  
Control power transformer, 59370 A  
Keypad Cable, 16146 A  
Keypad Cable, 500900 A  
Keypad Cable, 174370 A  
Keypad for all amp sizes  
Current transformer, 944 A AND 500900A  
Current transformer, 59202 A  
Current transformer, 242370 A  
Current transformer, 500900 A  
Cover, 9146 A  
SSDCBL146  
SSDCBL900  
SSDCBL370  
SSDEBKPD  
SSDCT044  
SSDCT202  
SSDCT370  
SSDCT900  
SSDCVR146  
SSDCVR900  
Cover, 174900 A  
460VAC Parts  
PART No.  
Description  
SSD1PSCR030  
SSD1PSCR146  
SSD1SCR202  
SSD3PC242  
SSD1SCR300  
SSD3SCR370  
SSD1SCR370  
SSDPC600  
SSD1SCR600  
SSDPC900  
SSD1SCR900  
SSDEB009  
1 Phase SCR pair for 9, 16, 23, 30 A  
1 Phase SCR pair for 72, 85, 105, 146 A  
1 Phase SCR pair for 174, 202 A  
1 Phase power cell for 242, 300A  
Single SCR 242, 300A, 460V  
1 Phase power cell for 370 A  
Single SCR 370A  
1 Phase power cell for 500, 600 A  
Single SCR 500, 600A  
1 Phase power cell for 750, 900 A  
Single SCR 900A  
Standard control board for 9 A  
Standard control board for 16 A  
Standard control board for 23 A  
Standard control board for 30 A  
Standard control board for 44 A  
Standard control board for 59 A  
Standard control board for 72 A  
Standard control board for 85 A  
Standard control board for 105 A  
Standard control board for 146 A  
Standard control board for 174 A  
Standard control board for 202 A  
Standard control board for 242 A  
Standard control board for 300 A  
Standard control board for 370 A  
Standard control board for 500 A  
Standard control board for 600 A  
Standard control board for 750 A  
Standard control board for 900 A  
Gate/Cathode wire assembly, 500900 A  
Gate/Cathode wires, 1659 A  
Gate/Cathode wires, 72146 A  
Gate/Cathode wires, 174370 A  
SSDEB016  
SSDEB023  
SSDEB030  
SSDEB044  
SSDEB059  
SSDEB072  
SSDEB085  
SSDEB105  
SSDEB146  
SSDEB174  
SSDEB202  
SSDEB242  
SSDEB300  
SSDEB370  
SSDEB500  
SSDEB600  
SSDEB750  
SSDEB900  
SSDCBLGT900  
SSDCBLGT059  
SSDCBLGT146  
SSDCBLGT370  
Continued on next page  
MN850  
Appendix C-1  
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575VAC Parts  
PART No.  
Description  
SSD1PSCR059  
SSD1PSCR8030  
SSD1PSCR8059  
SSD1PSCR8146  
SSD1SCR8202  
SSD3PC8242  
SSD1SCR8300  
SSD3SCR8370  
SSD1SCR8370  
SSDPC8600  
1 Phase SCR pair for 44, 59 A  
1 Phase SCR pair for 9, 16, 23, 30 A  
1 Phase SCR pair for 44, 59 A  
1 Phase SCR pair for 72, 85, 105, 146 A  
1 Phase SCR pair for 174, 202 A  
1 Phase power cell for 242, 300A  
Single SCR 242, 300A  
1 Phase power cell for 370 A  
Single SCR 370A  
1 Phase power cell for 500, 600 A  
Single SCR 500, 600A  
SSD1SCR8600  
SSDPC8900  
SSD1SCR8900  
SSDEB8009  
1 Phase power cell for 750, 900 A  
Single SCR 900A  
Standard control board for 9 A  
Standard control board for 16 A  
Standard control board for 23 A  
Standard control board for 30 A  
Standard control board for 44 A  
Standard control board for 59 A  
Standard control board for 72 A  
Standard control board for 85 A  
Standard control board for 105 A  
Standard control board for 146 A  
Standard control board for 174 A  
Standard control board for 202 A  
Standard control board for 242 A  
Standard control board for 300 A  
Standard control board for 370 A  
Standard control board for 500 A  
Standard control board for 600 A  
Standard control board for 750 A  
Standard control board for 900 A  
Gate/Cathode wires, 1659 A  
Gate/Cathode wires, 72146 A  
Gate/Cathode wires, 174370 A  
Gate/Cathode wire assembly, 500900 A  
SSDEB8016  
SSDEB8023  
SSDEB8030  
SSDEB8044  
SSDEB8059  
SSDEB8072  
SSDEB8085  
SSDEB8105  
SSDEB8146  
SSDEB8174  
SSDEB8202  
SSDEB8242  
SSDEB8300  
SSDEB8370  
SSDEB8500  
SSDEB8600  
SSDEB8750  
SSDEB8900  
SSDCBLGT8059  
SSDCBLGT8146  
SSDCBLGT8370  
SSDCBLGT8900  
C-2 Appendix  
MN850  
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Appendix D  
Voltage Surge Protection  
Grounding  
Proper grounding is extremely important. The symptoms produced by improper  
grounding are obvious. Sometimes filters and other expensive devices are added to  
reduce the effects of problems caused by poor grounding. There can be several  
reference points (neutrals) in a circuit but there should always only be one ground point.  
Neutral and ground are not the same. Neutral should normally be a non current carrying  
conductor, but it should be sized to carry momentary current caused be short circuits in  
the equipment. All of the neutrals in a system should connect at a central point and that  
point should be connected to the system ground.  
The goal is to minimize the current through the ground conductor. Circulating ground  
current is a source of electrical noise normally associated with unbalanced voltages or  
unbalanced loads. Capacitive or inductive coupling between power lines and the neutral  
or ground conductors is another noise source. Currents that flow through capacitive  
paths or from a magnetic field tend to change rapidly and produce high frequency  
interference called RFI (radio frequency interference).  
Good grounding is also important to minimize the effects of large voltage spikes that can  
create significant current flow in the ground conductors. The source of these voltages  
can be lightning striking the power lines, switching of large power loads and others. A  
balanced three phase four wire system with a system ground as shown in Figure D-1 can  
minimize noise problems normally associated with grounding. AC power and motor  
leads should be as short as possible and enclosed in conduit or shielded cable should be  
used. Power wires and Motor leads should never be in the same conduit.  
Figure D-1  
Control  
Note: Wiring shown for clarity of grounding  
Enclosure  
method only. Not representative of  
actual terminal block location.  
L1 L2 L3  
T1 T2 T3  
AC Main Supply  
L1  
L2  
L3  
Earth  
Safety  
Ground  
Four Wire  
Wye”  
Driven Earth Ground Rod  
(Plant Ground)  
Route all 4 wires L1, L2, L3 and Earth (Ground)  
together in conduit or shielded cable.  
Route all 4 wires T1, T2, T3 and Motor Ground together in conduit or shielded cable.  
Connect all wires (including motor ground) inside the motor terminal box.  
Ground per NEC and Local codes.  
MOV  
(Metal Oxide Varistor)  
Baldor recommends that MOV devices be installed at the input power connections to the  
SoftStart control to provide phaseto phaseand phasetogroundvoltage spike  
protection. Three MOV devices can be connected in WYEconfiguration with an  
additional MOV device connected to ground. Figures D-2 and D-3 shows how to connect  
the MOVs into the various power distribution system designs. Voltage spikes on any  
phase will be conducted to ground by the lowest impedance path (phasetophase or  
phasetoground).  
MN850  
Voltage Surge Protection D-1  
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Figure D-2 WYE Configurations  
Ungrounded  
Symbol  
Control  
Enclosure  
L1 L2 L3  
T1 T2 T3  
L1  
L2  
L3  
MOV  
Do not ground MOV. Cut off green wire and insulate (cap off) with wire nut.  
Grounded or  
Symbol  
High Resistance Ground  
Control  
Enclosure  
L1 L2 L3  
T1 T2 T3  
L1  
L2  
L3  
MOV  
D-2 Voltage Surge Protection  
MN850  
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Figure D-3 Delta Configurations  
Ungrounded  
Symbol  
Control  
Enclosure  
L1 L2 L3  
T1 T2 T3  
L1  
L2  
L3  
MOV  
Do not ground MOV. Cut off green wire and insulate (cap off) with wire nut.  
Corner or CenterTap  
Symbol  
Grounded  
Control  
Enclosure  
L1 L2 L3  
T1 T2 T3  
L1  
L2  
L3  
MOV  
Do not ground MOV. Cut off green wire and insulate (cap off) with wire nut.  
Table D-1 Baldor MOV Specifications  
Catalog #  
MOV505L  
480  
MOV620EL  
575  
Line Voltage  
Energy  
Peak Current  
Volts  
Joules  
Amps  
Volts  
260  
6500  
1300  
300  
6500  
1580  
Clamping Voltage  
MN850  
Voltage Surge Protection D-3  
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D-4 Voltage Surge Protection  
MN850  
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Appendix E  
MN850  
Appendix E-1  
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Remote Keypad Mounting Template  
4.00  
2.500  
(A)  
(A)  
Four Places  
Tapped mounting holes, use #29 drill and 8-32 tap  
(Clearance mounting holes, use #19 or 0.166drill)  
1-11/16diameter hole  
Use 1.25conduit knockout  
(B)  
(A)  
(A)  
1.250  
Note: Template may be distorted due to reproduction.  
E-2 Appendix  
MN850  
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BALDOR ELECTRIC COMPANY  
P.O. Box 2400  
Ft. Smith, AR 729022400  
(479) 6464711  
Fax (479) 6485792  
CH  
D
UK  
F
TEL:+41 52 647 4700  
FAX:+41 52 659 2394  
TEL:+49 89 90 50 80  
FAX:+49 89 90 50 8491  
TEL:+44 1454 850000  
FAX:+44 1454 850001  
TEL:+33 145 10 7902  
FAX:+33 145 09 0864  
I
AU  
CC  
MX  
TEL:+39 11 562 4440  
FAX:+39 11 562 5660  
TEL:+61 29674 5455  
FAX:+61 29674 2495  
TEL:+65 744 2572  
FAX:+65 747 1708  
TEL:+52 477 761 2030  
FAX:+52 477 761 2010  
Baldor Electric Company  
MN850  
Printed in USA  
5/03 C&J1500  
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