Omega Power Supply DRN PS 1000 User Manual

MADE  
IN  
USA UserÕs Guide  
®
DRN-PS-1000  
UNIVERSAL SWITCHING POWER SUPPLY  
Compact DIN-Rail 24 Volt  
 
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
 
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
 
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
 
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
 
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
 
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
 
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
 
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
 
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
 
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  
 
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  
 
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  
 
DIMENSIONS  
6
0.9" (23mm)  
3.00" (76mm)  
3.67" (93mm)  
13  
 
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  
 
 
 
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.  
 
Where Do I Find Everything I Need for  
Process Measurement and Control?  
OMEGAÉOf Course!  
TEMPERATURE  
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Thermocouple, RTD & Thermistor Probes,  
Connectors, Panels & Assemblies  
Wire: Thermocouple, RTD & Thermistor  
Calibrators & Ice Point References  
Recorders, Controllers & Process Monitors  
Infrared Pyrometers  
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PRESSURE, STRAIN AND FORCE  
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Transducers & Strain Gauges  
Load Cells & Pressure Gauges  
Displacement Transducers  
Instrumentation & Accessories  
FLOW/LEVEL  
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Rotameters, Gas Mass Flowmeters & Flow Computers  
Air Velocity Indicators  
Turbine/Paddlewheel Systems  
Totalizers & Batch Controllers  
pH/CONDUCTIVITY  
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pH Electrodes, Testers & Accessories  
Benchtop/Laboratory Meters  
Controllers, Calibrators, Simulators & Pumps  
Industrial pH & Conductivity Equipment  
DATA ACQUISITION  
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Data Acquisition & Engineering Software  
Communications-Based Acquisition Systems  
Plug-in Cards for Apple, IBM & Compatibles  
Datalogging Systems  
Recorders, Printers & Plotters  
HEATERS  
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Heating Cable  
Cartridge & Strip Heaters  
Immersion & Band Heaters  
Flexible Heaters  
Laboratory Heaters  
ENVIRONMENTAL  
MONITORING AND CONTROL  
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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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