MADE
IN
USA UserÕs Guide
®
e-mail: [email protected]
DRN-PS-1000
UNIVERSAL SWITCHING POWER SUPPLY
Compact DIN-Rail 24 Volt
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CONTENTS
1. General Information and Features
2. Safety Considerations
3. Installation and Removal
3.1 Installation Clearance
3.2 Mounting on DIN Rail
3.3 Removal of Unit
2
3
4
5
6
7
4. Input and Output Connections
4.1 Block Diagram
8
8
4.2 Wiring for 115 Vac - Single Phase
4.3 Wiring for 230 Vac - Two Phase
5. Specifications
9
10
11
11
11
12
12
13
14
Input Power
Output Power
General
Wire Connections
6. Dimensions
7. Temperature Derating Graph
1
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1
GENERAL INFORMATION AND FEATURES
The compact DRN power supplies are designed to
supply well-regulated 24 volt DC power to sensors,
signal conditioners, data acquisition systems and
high level logic equipment.
Significant DRN features include:
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Tested isolation, primary to output
Recessed live parts and connector screws
Either 32mm or 35mm DIN rail mounting
Wide input voltage tolerances
Protective varistor input shunt
Input AC spike rejection with LC filters
LED power-on lamp
Over-temperature protection
Short circuit protection
Low-ripple, well-regulated design
Features
2
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2
SAFETY CONSIDERATIONS
This device is marked with the international Caution symbol. It is
important to read this manual before installing or commissioning this
device as it contains important information relating to Safety and EMC
(Electromagnetic Compatibility).
Unpacking & Inspection
Unpack the instrument and inspect for obvious shipping damage. Do not attempt to
operate the unit if damage is found.
This instrument is a DIN rail mount device. Installation of this instrument should be done
by Qualified personnel. In order to ensure safe operation, the following instructions
should be followed.
This instrument has no power-on switch. An external switch or circuit-breaker shall be included in the
building installation as a disconnecting device. It shall be marked to indicate this function, and it shall
be in close proximity to the equipment within easy reach of the operator. The switch or circuit-breaker
shall not interrupt the Protective Conductor (Earth wire), and it shall meet the relevant requirements
of IEC 947Ð1 and IEC 947-3 (International Electrotechnical Commission). The switch shall not be
incorporated in the mains supply cord.
Furthermore, to provide protection against excessive energy being drawn from the mains supply in
case of a fault in the equipment, an overcurrent protection device shall be installed.
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The Protective Conductor must be connected for safety reasons. Check that the
power cable has the proper Earth wire, and it is properly connected. It is not safe to
operate this unit without the Protective Conductor Terminal connected.
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Do not exceed voltage rating on the label located on the top of the instrument
housing.
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Always disconnect power before changing signal and power connections.
Do not use this instrument on a work bench without its case for safety reasons.
Do not operate this instrument in flammable or explosive atmospheres.
Do not expose this instrument to rain or moisture.
Unit mounting should allow for adequate ventilation to ensure instrument does not
exceed operating temperature rating.
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Use electrical wires with adequate size to handle mechanical strain and power
requirements. Install without exposing bare wire outside the connector to minimize
electrical shock hazards.
EMC Considerations
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Whenever EMC is an issue, always use shielded cables.
Never run signal and power wires in the same conduit.
Use signal wire connections with twisted-pair cables.
Install Ferrite Bead(s) on signal wires close to the instrument if EMC problems
persist.
3
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3
INSTALLATION AND REMOVAL
If a rail assembly is to be transported, then
disconnection, dismounting and separate
packing of the power supply is
recommended.
Warning!
For units that must be shipped installed on
the rail, additional bracing to resist
transportation shocks is recommended.
Do not attempt to install or connect to the
power supply when the mains are
energized.
4
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3
INSTALLATION AND REMOVAL
3.1 Installation Clearance
Ensure that there is enough room for mounting the power
supply unit. There should be a minimum of 1" [25mm] spacing
to allow sufficient air circulation for proper cooling.
1"
1"
24V-Bus
Signal Conditioner
Modules
Power Supply
Figure 3.1 Ñ Mounting
5
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3
INSTALLATION AND REMOVAL
3.2 Mounting on DIN Rail
To install unit onto DIN Rail
1. Tilt unit position mounting guide onto DIN Rail, as shown.
2. Push unit towards DIN Rail and it will snap into place.
1. Tilt
35mm Rail
2. •Push to
•
Snap on
Mounting Guide
Ñ
Figure 3.2 Mounting on 35mm DIN Rail
32mm Rail
Figure 3.3 Ñ Mounted on 32mm DIN Rail
6
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3
INSTALLATION AND REMOVAL
3.3 Removal of Unit
The mounting guide can remain on DIN Rail and Power
Supply can be removed.
1. While holding mounting guide, push unit upwards and unit
will detach from mounting guide.
35mm Rail
Push Up
Hold Guide
Figure 3.4
Removal of Unit
Ñ
CASE
Mounting Guide
35mm (SHOWN)
or 32mm DIN RAIL
TAB MUST
BE LOCATED
AT BOTTOM.
Figure 3.5
Unit Removed
Ñ
7
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4
INPUT AND OUTPUT CONNECTIONS
4.1 Block Diagram of Power Supply
Figure 4.1 Ñ Block Diagram
4.2 Wiring
Warning: Do not turn on the ac power to the power supply
unit until you have completed all output connections. Failure
to do so may result in injury!
This device must only be installed electrically by a specially
trained electrician with corresponding qualifications.
Warning: To avoid potential electric shock use National
Electrical Code (NEC) safety practices when wiring and
connecting this unit to a power source.
8
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4
INPUT AND OUTPUT CONNECTIONS
4.2 Wiring (Continued)
115Vac - Single phase power wiring
Line
Neutral
Earth
Switch
FUSE
Input Power
USE AWG 12-26 WIRE
USE A SWITCH TO APPLY
*•
• +24V POWER TO THE LOAD,
• IF THE CAPACITANCE OF
• THE LOAD WILL DRAW MORE
• THAN 7 AMPS AT TURN ON.
Output Voltage
(for shielded wire
connections, if necessary)
Earth
To Signal
Conditioner
Modules
Return
+24 V
Switch
Figure 4.2Ñ Wiring for 115Vac - Single Phase
9
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4
INPUT AND OUTPUT CONNECTIONS
4.3 Wiring (Continued)
L1
230Vac - Two phase power wiring
L2
Switch
FUSE 1
FUSE 2
Earth
Earth
USE A SWITCH TO APPLY
*•
• +24V POWER TO THE LOAD,
• IF THE CAPACITANCE OF
• THE LOAD WILL DRAW MORE
• THAN 7 AMPS AT TURN ON.
Output Voltage
(for shielded wire
connections, if necessary)
Earth
To Signal
Conditioner
Modules
Return
+24 V
Switch
*
Figure 4.3Ñ Wiring for 230Vac - Two Phase
10
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SPECIFICATIONS
5
INPUT POWER
Input Voltage:
Frequency:
Current:
115 - 240Vac ±10%
50/60 Hz
0.400A @ 103Vac
0.190A @ 265Vac
Overvoltage Protection: 275 Volt Varistor
Overcurrent Protection: Fuse TR-5 800mA Time-lag / IEC 127-3
Input Wattage:
26 Watts
OUTPUT POWER
Output Voltage:
Output Wattage:
24Vdc ±2% @ 850mA (Resistive Load)
20 Watts*
* For higher output wattage greater than 20 watts follow the chart on
section 7, Figure 6.2.
Ripple:
less than 100 mVrms
Front Panel LED
Operating Indicator:
Short-Circuit/
Overload Protection:
Current limiting with automatic short-
circuit protection and temperature
shutdown accomplished by the switcher.
Maximum number of
Signal Conditioner
modules powered:
Depends on module used and
configuration (6-10 modules)
11
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5
SPECIFICATIONS
GENERAL
Operating Temperature: 23¡ to 122¡F(-5¡ to 50¡C)
Storage Temperature:
Mounting:
-40¡ to 176¡F(-40¡ to 80¡C)
32 and 35mm DIN Rail
Size:
Height: 3.00"
Width: 0.9"
Depth: 3.67"
(76mm)
(23mm)
(93mm)
Weight:
0.3 lbs. (0.14 kg)
Equipment Type:
Overvoltage:
Pollution Degree:
CLASS I
CAT II
2
Insulation input to ouput: Dielectric strength to 2500V transient
based on EN61010 for 265Vrms
working voltage
WIRE CONNECTIONS
Screw down wire clamps, AWG 12 to 26 (ferrules recommended
for stranded wire).
12
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DIMENSIONS
6
0.9" (23mm)
3.00" (76mm)
3.67" (93mm)
13
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7
INPUT AC VOLTAGE
/
POWER OUTPUT
AC INPUT CURRENT @ 100VAC INPUT
OUTPUT POWER
AC CURRENT
20W
21W
22W
23W
24W
338mA
355mA
373mA
392mA
412mA
MAXIMUM POWER OUTPUT
23W
24W
22W
21W
120V
265V
115V
110V
INPUT AC
VOLTAGE
105V
100V
20W
-5¼C 30¼C 35¼C 40¼C 45¼C 50¼C
AMBIENT TEMPERATURE ¼C
25¼C
Example: If ambient is 50¼C, maximum wattage is 21W max. for
120-265Vac. If unit is operated at 21W at an input voltage of 100V,
the maximum ambient temperature allowed is 40¼C.
Figure 6.2 Ñ Temperature Derating Graph
14
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MADE
IN
WARRANTY/DISCLAIMER
USA
OMEGA ENGINEERING, INC. warrants this unit to be free of defects in materials and
workmanship for a period of 13 months from date of purchase. OMEGA Warranty adds an additional
one (1) month grace period to the normal one (1) year product warranty to cover handling and
shipping time. This ensures that OMEGAÕs customers receive maximum coverage on each product.
If the unit should malfunction, it must be returned to the factory for evaluation. OMEGAÕs Customer
Service Department will issue an Authorized Return (AR) number immediately upon phone or written
request. Upon examination by OMEGA, if the unit is found to be defective it will be repaired or replaced
at no charge. OMEGAÕs WARRANTY does not apply to defects resulting from any action of the
purchaser, including but not limited to mishandling, improper interfacing, operation outside of design
limits, improper repair, or unauthorized modification. This WARRANTY is VOID if the unit shows
evidence of having been tampered with or shows evidence of being damaged as a result of excessive
corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other
operating conditions outside of OMEGAÕs control. Components which wear are not warranted, including
but not limited to contact points, fuses, and triacs.
OMEGA is pleased to offer suggestions on the use of its various products. However,
OMEGA neither assumes responsibility for any omissions or errors nor assumes liability
for any damages that result from the use of its products in accordance with information
provided by OMEGA, either verbal or written. OMEGA warrants only that the parts
manufactured by it will be as specified and free of defects. OMEGA MAKES NO OTHER
WARRANTIES OR REPRESENTATIONS OF ANY KIND WHATSOEVER, EXPRESSED OR
IMPLIED, EXCEPT THAT OF TITLE, AND ALL IMPLIED WARRANTIES INCLUDING ANY
WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
HEREBY DISCLAIMED. LIMITATION OF LIABILITY: The remedies of purchaser set forth
herein are exclusive and the total liability of OMEGA with respect to this order, whether
based on contract, warranty, negligence, indemnification, strict liability or otherwise,
shall not exceed the purchase price of the component upon which liability is based. In
no event shall OMEGA be liable for consequential, incidental or special damages.
CONDITIONS: Equipment sold by OMEGA is not intended to be used, nor shall it be used: (1) as a
ÒBasic ComponentÓ under 10 CFR 21 (NRC), used in or with any nuclear installation or activity; or (2) in
medical applications or used on humans. Should any Product(s) be used in or with any nuclear
installation or activity, medical application, used on humans, or misused in any way, OMEGA assumes
no responsibility as set forth in our basic WARRANTY/ DISCLAIMER language, and additionally,
purchaser will indemnify OMEGA and hold OMEGA harmless from any liability or damage whatsoever
arising out of the use of the Product(s) in such a manner.
RETURN REQUESTS / INQUIRIES
Direct all warranty and repair requests/inquiries to the OMEGA Customer Service Department.
BEFORE RETURNING ANY PRODUCT(S) TO OMEGA, PURCHASER MUST OBTAIN AN
AUTHORIZED RETURN (AR) NUMBER FROM OMEGAÕS CUSTOMER SERVICE
DEPARTMENT (IN ORDER TO AVOID PROCESSING DELAYS). The assigned AR number
should then be marked on the outside of the return package and on any correspondence.
The purchaser is responsible for shipping charges, freight, insurance and proper packaging to
prevent breakage in transit.
FOR WARRANTY RETURNS, please have
the following information available BEFORE
contacting OMEGA:
1. P.O. number under which the product
was PURCHASED,
2. Model and serial number of the product
under warranty, and
FOR NON-WARRANTY REPAIRS, consult
OMEGA for current repair charges. Have the
following information available BEFORE
contacting OMEGA:
1. P.O. number to cover the COST
of the repair,
2. Model and serial number of product, and
3. Repair instructions and/or specific
problems relative to the product.
3. Repair instructions and/or specific
problems relative to the product.
OMEGAÕs policy is to make running changes, not model changes, whenever an improvement is possible.
This affords our customers the latest in technology and engineering.
OMEGA is a registered trademark of OMEGA ENGINEERING, INC.
©
Copyright 1999 OMEGA ENGINEERING, INC. All rights reserved. This document may not be copied,
photocopied, reproduced, translated, or reduced to any electronic medium or machine-readable form, in whole or in part,
without prior written consent of OMEGA ENGINEERING, INC.
PATENT NOTICE: This product is covered by one or more of the following patents: U.S. Pat. No. Des. 336,895;
5,274,577 / Canada 2052599; 2052600 / Italy 1249456; 1250938 / France Brevet No. 91 12756 / Spain 2039150;
2048066 / UK Patent No. GB2 249 837; GB2 248 954 / Germany DE 41 34398 C2
Used Under License. Other International Patents Pending.
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Where Do I Find Everything I Need for
Process Measurement and Control?
OMEGAÉOf Course!
TEMPERATURE
Ⅺ
ߜ Thermocouple, RTD & Thermistor Probes,
Connectors, Panels & Assemblies
Wire: Thermocouple, RTD & Thermistor
Calibrators & Ice Point References
Recorders, Controllers & Process Monitors
Infrared Pyrometers
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ PRESSURE, STRAIN AND FORCE
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Transducers & Strain Gauges
Load Cells & Pressure Gauges
Displacement Transducers
Instrumentation & Accessories
FLOW/LEVEL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Rotameters, Gas Mass Flowmeters & Flow Computers
Air Velocity Indicators
Turbine/Paddlewheel Systems
Totalizers & Batch Controllers
pH/CONDUCTIVITY
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ pH Electrodes, Testers & Accessories
Benchtop/Laboratory Meters
Controllers, Calibrators, Simulators & Pumps
Industrial pH & Conductivity Equipment
DATA ACQUISITION
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Data Acquisition & Engineering Software
Communications-Based Acquisition Systems
Plug-in Cards for Apple, IBM & Compatibles
Datalogging Systems
Recorders, Printers & Plotters
HEATERS
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Heating Cable
Cartridge & Strip Heaters
Immersion & Band Heaters
Flexible Heaters
Laboratory Heaters
ENVIRONMENTAL
MONITORING AND CONTROL
Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Ⅺ
ߜ Metering & Control Instrumentation
Refractometers
Pumps & Tubing
Air, Soil & Water Monitors
Industrial Water & Wastewater Treatment
pH, Conductivity & Dissolved Oxygen Instruments
M-2814/0899
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