DIMMEXTM
w/Multi-LinkTM
(and/or Analog)
Dimmex 12-2
Dimmex 24-1
User Manual
Revision 3, September, 1998
070-0540
©1998, Electronics Diversified, Inc.
TM
Dimmex M-L
Front Panel
8. Multiplex Signal Format Switch:
1. Input Power Error Indicator:
Set this switch to "D" for USITT DMX-512 digital, or "A" for
AMX-192 control formats.
This indicator will light if there is voltage between the
neutral conductor and the dimmer chassis.
9. Dimmer Pack Number:
IMPORTANT!
These two thumbwheel switches select the dimmer pack
address for multiplexed dimmer formats.
If this indicator is on, disconnect power immediately
and check for improper input power wiring. Refer to
the INPUT POWER WIRING section.
10. Configure Button:
This pushbutton is used to enter new multiplex data formats,
self-test patterns, or different dimmer pack addresses. Press
this pushbutton after any change is made in multiplex data
formats, self-test patterns, or dimmer pack addresses.
2. Dimmer Circuit Breakers:
One fully magnetic circuit breaker is supplied for each
dimming circuit. Turn off the corresponding breaker when
re-lamping or connecting loads.
11. Multiplex control Input:
Connect the multiplex cable from the control console here.
3. Control Power Switch:
Turn on this switch to power the control electronics. When
this switch is off, the dimmer will not respond to any external
control signals and the dimmer preheat is off.
12. Multiplex Control Output:
This connector is paralleled to the Multiplex Control Input
connector. Use this connector to add additional dimmers.
4. Power Indicators:
13. Multiplex Signal Presence Indicator:
The yellow indicator lights when a valid multiplex signal is
received.
These green indicators will light when power is applied to
the corresponding phases. All three indicators should light
on three-phase dimmers, and indicators 1 and 3 should light
on single-phase dimmers.
14. Dimmer Overtemp Indicator:
This red indicator will light when the dimmer pack is shut
down due to an over-temperature condition. The dimmer
pack will re-energize when it has cooled down to an
acceptable temperature.
5. Control Power Fuses:
These three fuses protect the Multi-Link control module.
6. Dimmer Output Test Buttons & Status Indicators:
Each yellow indicator will light as bright as the output of
that individual dimmer. When the button is pressed in, the
corresponding dimmer will be forced to full output and the
yellow indicator will be at maximum brightness.
15. Preheat Level:
This control is used to set the preheat level of the lamps.
Turn it clockwise to increase the preheat level.
16. Calibration Access Plate:
7. Analog Control Input:
Removal of this plate allows access to calibration
potentiometers and test points. Refer to Calibration section.
Connect the analog cable from an analog 0- +10 Volt
controller here.
12
8
10 16
4 14
6
2
3
9
1
5
1
7
15
13
H
1 2
3
H
1 2
3
GND
1 AMP 125 VAC
3
TM
Dimmex M-L
Rear Panel
1. Convenience Outlet:
IMPORTANT!
External devices of up to 20 amps may be connected here.
Solid-state dimmers are sensitive to resistance and the
resultingvoltagedropsinthepowerfeedcable. Excessive
voltage drops may cause the dimmers to interact and
flicker. This is especially true of the neutral conductor.
The neutral conductor must be at least the same size as
the line conductors. EDI recommends that the size of the
neutral conductor be125% of the line conductors.
2. Circuit Breaker:
This circuit breaker controls power to the convenience outlet.
3. Input Power Cable Clamp:
The input power cables are inserted here and secured by
the clamp.
4. Dimmer Outputs:
Loads should be at least 25 watts.
Three-Phase Wiring -- 120/208 VAC
Three-phase wiring has three seperate hot wires and a
neutral.
3
4 1 2
1. Connect the Ground wire to the lug next to the terminal block.
This unit must be grounded.
2. Connect the Neutral wire to the "N" terminal.
3. Connect the Phase A wire to the "Ø A" terminal.
Connect the Phase B wire to the "Ø B" terminal.
Connect the Phase C wire to the "Ø C" terminal.
IMPORTANT!
Do not connect this dimmer pack to Delta configuration
three-phasepowersources.Theinputpowerrequirement
for this unit is 80 amperes per phase.
IMPORTANT!
Turn off the correspoding circuit breaker when
re-lamping or connecting loads.
FactoryWiring
Ø A
Contractor Installed Wiring
Phase A
Ø B A
Ø B C
Phase B
Input Power Wiring
Phase C
Neutral
Ø C
It is strongly recommended that the input power wiring be
installed by a qualified electrician.
Neut.
This unit must be connected to a grounded power source! If
a grounded power source is not available, contact a qualified
electrician.
Double-check all connections, and make sure all terminals
are tightly secured before replacing cover. Tighten the cable
clamp and connect the cable to a suitable power source.
Apply power to the dimmer and check the Input Power Error
Indicator. If it is on, the dimmer is miswired. Turn off power
immediately and check the input power wiring.
IMPORTANT!
Before connecting the input power, make sure the
power source is turned off.
Setallbreakersandthecontrolpowerswitchtothe off
position.
Turn on the Control Power switch and check the three green
power indicators. All three indicators should light.
Unscrew and remove the dimmer cover. The line
input terminal block is located on the right side of the
dimmer.
Connect the loads and turn on all of the circuit breakers.
The dimmer is now ready to use.
Route the feed cable through the cable clamp and make the
required connections to the terminal block and ground lug inside.
Snug down all terminal and ground lug screws firmly, watching
for stray wire strands which could cause shorts. Replace the
cover and tighten the cable clamp.
The Dimmex Mulit-Link dimmer can be operated on single-
or three-phase power. Each is connected in a different way.
Refer to the following instructions for proper connections.
Single-Phase Wiring -- 120/240 VAC
Single-phase wiring has two seperate hot wires and a neutral.
1. Connect the Ground wire to the lug next to the terminal block.
This unit must be grounded.
2. Connect the Neutral wire to the "N" terminal.
3. Connect the hot wires to the Line 1 and Line 2 terminals.
4
TM
Dimmex M-L
Single-Phase Wiring -- 120/240 VAC (cont'd)
Analog Wiring Connections
FactoryWiring
Contractor Installed Wiring
Dimmer
Number
Control
Dimmer
Number
Control
Pin
Ø A
Ø B A
Pin
Phase A
13
14
15
16
17
18
19
20
21
22
23
24
13
14
15
16
17
18
19
20
21
22
23
24
25
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
No Connection
Ø B C
Ø C
Phase B
Neutral
Neut.
10
11
12
10
11
12
Control Ground
IMPORTANT!
The dimmer pack is intended to be operated from a
120/240 VAC power source (2 hots and 1 neutral). Do not
connect this dimmer to a single 120 volt power source (1
hot and 1 neutral).
The single-phase input power requirement for this
unit is 120 amperes per phase.
Multiplex Control
The Multi-Link controller may be configured for different
control formats. When using the multiplex control option, the
dimmer "Pack Number" thumbwheels must be set to the proper
value.
Double-check all connections and make sure all terminals
are tightly secured before replacing cover. Tighten cable clamp
and connect cable to power source.
NOTE: Dimmer pack numbers are in groups of twelve. Pack
number 01 is for dimmers 1-12, 02 is for dimmers 13-24,
and so on.
Apply power to the dimmer and check the Input Power Error
Indicator. If it is on, the dimmer is miswired. Turn off power
immediately and check the input power wiring.
Turn on the Control Power switch and check the three green
power indicators. Indicators 1 and 3 should light. Indicator 2
should be off.
Usually, the first dimmer pack (dimmers 1-12) is set to 01,
the second dimmer pack (dimmers 13-24) to 02, and so on. On
24 dimmer models, each dimmer pack uses two numbers. The
first pack shoud be set to 01 (dimmers 1-24), the second pack to
03 (dimmers 25-48), etc.
Table 1 gives the corresponding dimmer numbers for all
valid dimmer pack addresses.
Connect the loads and turn on all of the circuit breakers.
The dimmer is now ready to use.
TABLE 1
Dimmer Pack Address Table
(12- and 24- dimmer models)
Input Control Connections
This dimmer may be controlled by either an analog output
controller 0 - +10 volt D.C., or one of three multiplexed output
controllers. Thefollowingsectionsdescribeallcontrolformats.
Pack
Address
Beginning
Dimmer #
Pack
Address
Beginning
Dimmer #
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
253
265
277
289
301
313
325
337
349
361
373
385
397
409
421
433
445
457
469
481
493
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
NONE
1
13
25
37
49
61
73
85
Analog Control
This dimmer is equipped with a male 25-pin "D" connector for
operation from 0 to +10 Volt D.C. analog control voltages.
1. Connect the analog cable to the analog input connector.
2. Set the pack address switches to 00 to disable the self-test
and multiplex input features.
97
109
121
133
145
157
169
181
193
205
217
229
241
3. Press the Configure button.
NOTE: If you are using the analog and mulitplex controls at the
same time, ignore steps 2 and 3.
Analog Connector 25-pin D type
Female mating connector: Cannon #DB-25S
1
2 3 4 5 6 7 8 9 10 11 12 13
Whenever the dimmer pack number is changed, the
Configure button must be pressed to enter the change.
14 15 16 17 18 19 20 21 22 23 24 25
If a pack is set to 00, the Multiplex signal is disabled.
5
TM
Dimmex M-L
Multi-Link Connectors
Multiplex Cables
5-pin XLR type mating connectors:
Standard Multi-Link Cable is used to connect the dimmer
pack to USITT DMX-512 or Multi-Link compatible consoles. This
cable is also used to interconnect packs for all multiplex formats.
Female connector
(tonext dimmer pack)
SwitchcraftNo. A5F
Male connector
(from console)
SwitchcraftNo. A5M
SHIELD
Ground
Data -
Data+
AMX
Ground
Data -
1
2
5
4
Data+
AMX
Overtemp
Overtemp
3
2
1
3
4
5
FROM CONSOLE
Male Connector
Switchcraft #A5M
WIRE
Belden #9842
or Alpha #5272
TO DIMMERS
Female Connector
Switchcraft #A5F
W iringConnections:
1.AnalogGround
2.Clock/Data-
3.Clock/Data +
4.Analog Multiplex
5.Overtemp
Strand CD 80 to Multi-Link Adapter Cable
Strand CD-80 to Multi-Link adapter cable is required for
Strand consoles with smaller 4-pin MINI-XLR-type connectors.
Use this adapter to connect the first dimmer pack to the console.
Additional dimmer packs may be added by using standard Multi-
Link cables.
USITT DMX-512 Digital Multiplex
The USITT DMX-512 Digital multiplex format will allow up
to 512 dimmers to be controlled from a single cable. In addition
to the digital signal, the Dimmex Multi-Link sends an overtemp
signaltothecontrolconsoleintheeventofanovertempcondition.
1. Set the multiplex signal format switch to D (for Digital
multiplex).
SHIELD
Ground
Clock-
Clock+
Analog
Ground
Clock-
Clock+
Analog
2. Set the desired pack number (see Multiplex Control section).
3. Press the Configure button.
4. Connect a USITT DMX-512 compatible control cable from
the control console to the multiplex control input connector.
FROM CONSOLE
Male Connector
Switchcraft #TA4ML
WIRE
Belden #9842
or Alpha #5272
TO DIMMERS
Female Connector
Switchcraft#A5F
Self Test
USITT AMX-192 Analog Multiplex
The Multi-Link AMX-192 analog multiplex format will allow
up to 192 dimmers to be controlled from a single cable.
1. Set the multiplex signal format switch to A (for Analog
mulitplex).
The Multi-Link system has three built-in test patterns. The
patterns are enabled by selecting dimmer pack numbers of 50,
60, and 70.
To enable a self-test pattern,
1. Select the desired pattern:
2. Set the desired pack number. The AMX-192 standard will
only support 192 dimmers. The maximum pack address
number that can be used is 16.
3. Press the Configure button.
4. Connect an AMX-192 adapter control cable from the control
console to the multiplex control input connector.
50 - One dimmer on at a time.
60 - Build (starts with dimmer 1 and adds on additional
dimmers).
70 - All dimmers on at once.
2. Press the Configure button. The self-test will start
immediately. The right hand thumbwheel switch may be
changed to vary the speed of the test.
Fiber-Link Optical Multiplex (Optional)
The Fiber-Link multiplex format will allow up to 512 dimmers
to be controlled from a single fiber-optic cable.
0 is the fastest, 9 is the slowest.
1. Set the desired pack number (see Multiplex Control section).
2. Press the Configure button.
Dimmer Output Test
3. Connect a Fiber-Link multiplex cable from the control
console to the fiber-optic receiver (labeled IN).
4. Additional dimmer packs may be daisy-chained by running
a Fiber-Link multiplex cable from the fiber-optic transmitter
(labeled OUT) to the fiber-optic receiver (labeled IN) on the
next dimmer.
There is a yellow button on the front panel for each dimmer
channel. Pressing it in will cause that dimmer to immediately go
to full intensity. Pressing the button again will resume normal
operation of that channel. The yellow indicator inside each test
button shows the same percentage of brightness as the
corresponding output.
NOTE: Ifthecontrolpowerswitchisoff,orpowerisdisconnected
to the dimmer pack, the Fiber-Link signal received at the
IN connector will not be transmitted by the OUT
connector.
Lamp Preheat
The lamp preheat adjustment allows a small amount of
current flow through the lamp filaments at all times. This preheat
(warming current) reduces the shock to the filaments when the
lamps are suddenly turned on to full. Increasing the preheat level
will significantly increase lamp life, especially in applications
where the lamps are rapidly flashed on and off.
In order to use the Fiber-Link multiplex format, an
optionalFiber-Linkmodulemustbeinstalled.Thismodule
hasonlyfiber-opticconnectors,notMulti-Linkconnectors.
Therefore, Multi-Link and Fiber-Link dimmers may not
be interchanged unless the control console has dual
output.
6
TM
Dimmex M-L
Lamp Preheat (cont'd)
Turn the lamp preheat clockwise to increase the lamp
preheatandcounter-clockwisetoreduceit. Foroptimumpreheat
adjustment, turn the control all the way clockwise and then slowly
turn it counter-clockwise until the lamps stop glowing.
Do not run the control wiring and the line (or load) wiring
together or in the same conduits.
Avoid running common neutrals to the load wiring.
Wall Mounting Front View
Calibration
6" Clearance
Thisdimmerhasbeenfactorycalibratedandshouldnever
require additional calibration. Before calibration is attempted,
make sure that all other equipment has been checked for
failure or malfunction, especially the control console.
If the dimmer is ghosting (all lamps glowing), turn the
preheat control counter-clockwise.
Brackets (4)
(3 sides)
12"
Ground Buss
Dimmex ML
Front
Rear
The Dimmex Multi-Link is designed to be calibrated for a
0- +10 volt analog control signal. If the dimmer is calibrated for
other analog control levels, the digital formats (including the
test modes) will not work properly.
Neutral Buss
Calibration Controls
WALL
H 1 2 3
H 1 2 3
GND
W all Mounting (SideView)
Input Power Knockout
Ground Buss
Control Ground
Phase C Ramp
Phase B Ramp
Phase A Ramp
HighCal.
Phase A Low Cal.
Phase B Low Cal.
Phase C Low Cal.
High Cal. Test Point
Control and Dimmer Output Knockouts
High End Calibration
Dimmex Model 24-1
Rear Panel Shown
Remove the calibration access plate. Connect a digital
voltmeter between the test point labeled H (high cal.) and GND.
Adjust the H calibration potentiometer so meter indicates exactly
+9.3 volts.
Neutral Buss
VentilationOpenings
Mounting Surface
Low End Calibration
Set the preheat control to ¼ of the way from full counter-
clockwise. Connectidentical100-500wattclearlampstodimmers
1, 5, and 9.
Adjust low cal. potentiometer 1 until the lamp connected to
dimmer 1 barely glows.
Adjust low cal. potentiometer 2 until the lamp connected to
dimmer 5 glows at the same intensity as the lamp connected to
dimmer 1.
If common load neutrals absolutely must be run (retrofit
situations), do not connect circuits of the same phase to the same
common neutral wire. Do not run more than three dimmers
(three-phase) or two dimmers (single-phase) on a common
neutral wire. Choose the size of the neutral wire to handle 120%
of the rated dimmer load.
Refer to Table 2 for normal dimmer phasing.
Adjust low cal. potentiometer 3 until the lamp connected to
dimmer 9 glows at the same intensity as the lamps connectd to
dimmers 1 and 5. Reset the preheat control for the desired
preheat level.
TABLE 2
Dimmer Phasing
Dimmer Three-
Number Phase
Single
Phase
Dimmer Three-
Number Phase
Single
Phase
The dimmer is now properly calibrated.
13
14
15
16
17
18
19
20
21
22
23
24
Phase A
Phase A
Phase A
Phase A
Phase B
Phase B
Phase B
Phase B
Phase C
Phase C
Phase C
Phase C
Line 1
Line 1
Line 1
Line 1
Line 1
Line 1
Line 2
Line 2
Line 2
Line 2
Line 2
Line 2
01
02
03
04
05
06
07
08
09
10
11
12
Phase A
Phase A
Phase A
Phase A
Phase B
Phase B
Phase B
Phase B
Phase C
Phase C
Phase C
Phase C
Line 1
Line 1
Line 1
Line 1
Line 1
Line 1
Line 2
Line 2
Line 2
Line 2
Line 2
Line 2
Wall Mounting
Mount the dimmer to the wall with the front panel facing
either right or left as shown.
Allow 6" clearance on all sides, and12" in front (circuit
breaker) side to allow the dimmer control module to be removed.
Do not block any of the ventilation openings.
Do not use aluminum wire.
7
TM
Dimmex M-L
Solid-State Relay Replacement
Determine which dimmer needs repairing. The solid-state relays
are mounted on the heatsink.
1. Note the arrangement of the power connections (factory
installed wires) on the defective solid-state relay, then unplug
the connections.
4. Apply a thin coating of heatsink compound to the bottom of
the new solid-state relay and replace by following steps 1-
3 in reverse order.
Solid-state Relay Location
2. Note the orientation of the control connector, then unplug
the connector.
1 2
3 4
5 6
1 2 3 4 5 6 7 8 910 1112
3. Remove the relay by removing the two screws which secure
it to the heatsink.
Dimmex M-L 24-1 (All Models)
Fan
Dimmex M-L 12-2 (All Models)
Fan
9 10
11 12
7 8
1314 1516 17 18 1920 21 22 2324
Troubleshooting Guide
Symptom
Possible Cause
Remedy
Nothing works, green indicators
1, 2, and 3 are dark.
Control power switch is off.
Input power source is off.
Turn on control power switch.
Check input power source.
Nothing works, green indicator 1
is dark, 2 and 3 are on.
Phase A (Line 1) fuse blown.
Phase A (Line 1) power source off.
Replace fuse.
Check input power source.
Dimmers 5, 6, 7 & 8 don't dim
Phase B fuse blown.
Replace fuse.
correctly,or snap on instead of dimming. Phase B power source off.
Check input power source.
Single-phase dimmer pack wired to Connect dimmer to single-phase power source.
three-phase power.
Green indicator 2 is off.
Three-phase dimmer pack wired to
single-phase power.
Connect dimmer to three-phase power source.
Dimmers 9, 10, 11 or 12 don't dim
Phase C (Line 2) fuse blown.
Replace fuse.
correctly, or snap on instead of dimming.
Green indicator 3 is off.
Phase C (Line 2) power source off.
Check inpput power source.
A dimmer channel is always on and
the corresponding output status
indicator is on.
Dimmer channel in test mode.
Defective solid-state relay.
Depress the corresponding button to clear the test.
Replace the solid-state relay.
A dimmer channel is always on and
the corresponding output status
indicator is off.
Defective solid-state relay.
Replace the solid-state relay.
A dimmer channel is always off and
the corresponding output status
indicator is off.
The solid-state relay control
connector is loose, unplugged, or
plugged in backwards.
Check control wiring connector to solid-state relays.
Defective solid-state relay.
Replace the solid-state relay.
A dimmer channel is always off, but
the corresponding output status
indicator operates properly.
Defective lamp fixture plugged into
dimmer.
Dimmer circuit breaker is off.
Dimmer circuit breaker is tripped.
Defective solid-state relay.
Check the load with a known good fixture.
Turn on the circuit breaker.
Reset the circuit breaker by turning off and then on.
Replace the solid-state relay.
All of the lamps "ghost" (glow).
Lamp preheat set too high.
Dimmer out of calibration.
Rotate the preheat control counterclockwise.
Recalibrate the dimmer.
Lamps plugged into dimmers 1 - 4,
or 5 - 8, or 9 - 12 ghost.
The corresponding phase low end
calibration is out of adjustment.
Recalibrate the dimmer.
The multiplex signal indicator flashes,
lamps flicker, or dimmers refuse to
respond to multiplex signal.
Dimmer address set to 00.
Bad multiplex cable.
Multiplex format set to wrong setting. Set the format switch to the proper format.
Set the dimmer pack address to a valid number.
Check the dimmer pack with a known good cable.
(cont'd)
8
TM
Dimmex M-L
Troubleshooting Guide (cont'd)
Lamps flash, flicker, or sequence.
Dimmer address set to test modes.
(50-70)
Bad multiplex cable.
Set the dimmer pack address to a valid number.
Check the dimmer pack with a known good cable.
Multiplex format set to wrong setting. Set the format switch to the proper format.
The dimmer pack overheats.
The cooling vents are blocked.
The dimmer pack is full of dust.
Clear any obsructions to the cooling vents.
Carefully remove dist and dirt with compressed air
or a vacuum cleaner.
The dimmer is in a very warm
location.
Relocate the dimmer to a cooler location.
Lamps go out before the console sliders The analog control console is not
Check the output from the console.
Recalibrate the dimmer.
reach zero.
set for 0 - +10V output.
The low-end calibration is out of
adjustment.
Lamps are on full before console sliders The analog control console is not
Check the output from the console.
Recalibrate the dimmer.
reach full.
set for 0 - +10V output.
The high-end calibration is out of
adjustment.
Input power error light on.
Faulty or incorrect input power wiring. Do not touch the dimmer pack or anything
connected to it. Check for voltage between the
ground and neutral conductor.
Disconnect the power source and check all input
power wiring.
Service
EDI offers a 24 hour Service / Support Network.
For technical questions about this product or operational assistance, ask for Customer Service at: . . . . . . . . . . . . . 1-800-547-2690
You may communicate by FAX: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-503-629-9877
After Hours Emergency contact: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-503-645-5533
Ask for Emergency Assistance.
Internet: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . www.edionline.com
Internet E-Mail: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [email protected]
If your Dimmex needs repair, call 503-645-5533 for a Return Materials Authorization number, and a shipping address will be
furnished.
Electronics Diversified, Inc.
1675 N.W. Cornelius Pass Road
Hillsboro, Oregon, 97124
Ph: (503) 645-5533 Fax: (503) 629-9877
9
TM
Dimmex M-L
Attention Dimmex M-L dimmer pack owners!
Please return this registration card immediately.
Your prompt attention to this matter will ensure your receiving updated technical
information for this product as it becomes available. Please complete all information.
Look for acknowledgment of your registration within 6-8 weeks.
Name: _______________________________________________________
Title: ________________________________________________________
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_____________________________________________________________
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_____________________________________________________________
City: ____________________________ State: ______ Zip: __________
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Mail to:
EDI User Manual Registration
1675 NW Cornelius Pass Road
Hillsboro, Oregon 97124
or FAX to: (503) 629-9877
Revision 1, May 1997
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