DRSP-I DRSP-I-DC 4-20 mA Isolated Signal Splitters M-5244/0818 Model DRSP-I DRSP-I-DC Module Power User’s Guide 85-265 VAC, 50/60 Hz or 60-300 VDC 9-30 VDC or 10-32 VAC Description The DRSP-I series accepts a 4-20 mA current input and provides two optically isolated 4-20 mA current outputs that are linearly related to the input. Typical applications include isolation, output splitting, output device separation, and redundancy (i.e. to prevent failure of the entire loop if one device fails), or a combination of these. Full 4-way isolation makes this module useful for ground loop elimination, common mode signal rejection, or noise pickup reduction. Sink/Source I/O Standard is a 15 VDC loop excitation supply for the input and a 20 VDC loop excitation supply for each output. These power supplies can be selectively wired for sinking or sourcing allowing use with any combination of powered or unpowered milliamp I/O devices. I/O Status LEDs A green input LED and two red output LEDs vary in intensity with changes in the process input and output signals. These provide a quick visual picture of your process loop at all times. Shop online at omega.com Output Test An output test button provides a fixed output (independent of the input) when held depressed. The test output level is potentiometer adjustable from 0 to 100% of output span. Terminals are provided to operate the test functions remotely for each channel. This also allows use as a remote manual override to provide a temporary fixed output. e-mail: firstname.lastname@example.org For latest product manuals: www.omegamanual.info Lifetime MADE IN TM DC Input Range Factory ranged, please specify Voltage: 0-10 mVDC to 0-100 VDC Bipolar voltage: ±50 mVDC to ±10 VDC Current: 0-1 mADC to 0-50 mADC, 4-20 mADC Input Impedance and Burden Voltage: 200 kΩ minimum Current: 50 Ω typical Voltage burden: 1.25 VDC max. at 20 mA current input Input Loop Power Supply 15 VDC ±10%, regulated, 25 mADC May be selectively wired for sinking or sourcing mA input LoopTracker Variable brightness LEDs indicate I/O loop level and status One for input, one for each output Channel 1 and Channel 2 DC Output Ranges Factory configured, please specify for each output channel Voltage: 0-1 VDC to 0-10 VDC, 10 mA max up to 20 VDC with M19, M29, M39 Bipolar voltage: ±1 VDC to ±10 VDC Current: 0-1 mADC to 0-20 mADC, 4-20 mADC 20 V compliance, 1000 Ω at 20 mA Output Calibration Multi-turn zero and span potentiometers for each output channel ±15% of span adjustment range typical Output Loop Power Supplies 20 VDC nominal, regulated, 25 mADC for each output channel May be selectively wired for sinking or sourcing mA output Output Test/Override Front momentary buttons or external contact closures for each channel to set output test levels. Each output test level potentiometer adjustable 0-100% of span Output Ripple and Noise Less than 10 mVRMS Linearity Better than ±0.1% of span Ambient Temperature Range and Stability –10°C to +60°C operating ambient Better than ±0.04% of span per °C stability Response Time 70 milliseconds typical Fast response time option DF, 10 milliseconds typical Isolation Full 4-way, 1200 VRMS minimum Housing and Connectors IP 40, requires installation in panel or enclosure For use in Pollution Degree 2 Environment Mount vertically to a 35 mm DIN rail Eight 4-terminal removable connectors, 14 AWG max wire size Power 85-265 VAC, 50/60 Hz or 60-300 VDC, 6 W maximum D versions: 9-30 VDC or 10-32 VAC 50/60 Hz, 6 W maximum WARNING: This product can expose you to chemicals including nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov 2 DRSP-I, DRSP-I-DC 4-20 mA Isolated Signal Splitters Electrical Connections WARNING! All wiring must be performed by a qualified electrician or instrumentation engineer. See wiring diagrams. Avoid shock hazards! Turn signal input, output, and power off before connecting or disconnecting wiring. The DRSP-I is factory configured for one 4-20 mA input and two 4-20 mA outputs as indicated on the serial number label. To maintain full isolation, avoid combining power supplies in common with inputs, outputs, or unit power. The power supplies are fuse protected and the unit may be returned for fuse replacement. Signal Input Terminals Polarity must be observed when connecting the signal inputs. The DRSP-I may be wired for a sinking or sourcing input. Determine if your input device provides power to the current loop or if the loop must be powered by the DRSP-I. Typical voltage may be 9-24 VDC at your device’s terminals if it provides power to the loop. Type of Input Device 17 (–) Transmitter with mA (current) output that is unpowered. Typically a 2-wire device. DRSP-I module provides loop power. 19 (–) 19 (+) – 1 Ri + – 2 3 4 Output Ch. 1 5 Passive mA Device 1 + 6 7 8 Output Ch. 2 Passive mA Device 2 Ri Current Sinking Outputs with Separate Power Supplies Typical of a system using loop powered displays with external loop supplies. + Ri – + Loop Power Source 1 1 – Loop Power Source 2 – + – 2 3 4 Output Ch. 1 5 + 6 7 8 Output Ch. 2 – Terminal + Terminal Measuring/recording device accepts a mA (current) input and the input is unpowered or passive. DRSP-I provides the loop power. 3 (–) Measuring or recording device accepts a mA (current) input and provides power to the current loop. 2 (–) Passive mA Device 1 3 (+) 7 (–) Measuring or recording device accepts a mA (current) input and provides power to the current loop. 6 (–) 8 (+20 V) 2 3 4 Output Ch. 1 9 10 11 12 Test 6 7 8 Output Ch. 2 13 14 15 16 Test Cal. Output LED Test OMEGA Engineering , Inc. Span Input LED: Variable brightness green LED indicates input level Span Input LED Zero Zero DRSP-I Zero: Output zero calibration for each channel DC to DC Isolated Signal Splitter Transmitter 17 18 19 20 Current Sourcing Input DRSP-I provides power to input loop. Typical when using a passive or unpowered transmitter or sensor. +15V 21 22 23 24 – Ri Passive mA Xmtr 17 18 19 20 + – Ri mA Xmtr Power Source 7 (+) Module Power Terminals Check white model/serial number label for module operating voltage to make sure it matches available power. Connect power last. When using DC power, either polarity is acceptable, but for consistency with similar products, positive (+) can be wired to terminal 13 and negative (–) can be wired to terminal 16. 5 + 20V Channel 2 Output LED Test Cal. Span: Output span calibration for each channel Current Sinking Input Typical of a system using a transmitter that is externally powered and provides power to the loop. – Channel 1 Test: Push to test output. Sets each output to level determined by Test Cal. potentiometer. 4 (+20 V) Ri + 20V 1 Output LEDs: Variable brightness red LED indicates output level for each channel – Terminal + Terminal Measuring/recording device accepts a mA (current) input and the input is unpowered or passive. DRSP-I provides the loop power. – External Contacts For Test Function Closing the contact provides the same function as pressing the Test button for each channel. May be used as a manual override. Test Cal.: Output test level adjustment Passive mA Device 2 Ri Current Sourcing Outputs DRSP-I provides power to each loop. Typical of a system or PLC using current sinking inputs. 18 (+15 V) Signal Output Terminals Polarity must be observed when connecting the signal outputs. The two DRSP-I output channels may be individually wired for a sinking or sourcing output as needed. For each channel determine if your output device provides power to the current loop or if the loop must be powered by the DRSP-I. Typical voltage may be 9-24 VDC at your device’s terminals if it provides power to the loop. The wiring diagram illustrates typical wiring examples. Each channel may be wired as needed. If the output does not function, check wiring and polarity for both inputs and outputs. Type of Device for Output Channel 2 Ri Current Sinking Outputs Typical of some PLCs that have current sourcing inputs. mA Device 2 Power Source – Terminal + Terminal Transmitter with a mA (current) output that provides power to the current loop. Typically a 3 or 4-wire device. Type of Device for Output Channel 1 mA Device 1 Power Source To maintain full isolation, avoid combining power supplies in common with inputs, outputs, or unit power. 17 18 19 20 + – Current Sinking Input with Separate Power Supply Typical of a system using a passive transmitter that uses a loop power supply to power to the loop. Module Power DRSP-I: 685-265 VAC, 50/60 Hz or 60-300 VDC DRSP-I-DC: 9-30 VDC or 10-32 VAC 50/60 Hz Power wiring: Cu 60/75°C conductors 14 AWG max. + – Ri Loop Power Source 3 Passive mA Xmtr Do not connect to unused terminals 25 26 27 28 29 30 31 32 28 Power AC or DC – 26 Earth Ground 25 Power AC or DC + DRSP-I, DRSP-I-DC 4-20 mA Isolated Signal Splitters Mounting to a DIN Rail Install module vertically on a 35 mm DIN rail in a protective enclosure away from heat sources. Do not block air flow. Allow 1" (25 mm) above and below housing vents for air circulation. Avoid shock hazards! Turn signal input, output, and power off before installing or removing module. 1. Tilt front of module downward and position the lower mounts and spring clips against the bottom edge of DIN rail. 2. Push front of module upward until upper mount snaps into place. Removal 1. Push up on bottom back of module. 2. Tilt front of module downward to release upper mount from top edge of DIN rail. 3. The module can now be removed from the DIN rail. Output Test Function When the Test button is depressed it will drive the output with a known good signal that can be used as a diagnostic aid during initial start-up or troubleshooting. When released, the output will return to normal. The Test Cal. potentiometer is factory set to approximately 50% output. It can be adjusted to set the test output from 0 to 100% of the output span. Press and hold the Test button and adjust the Test Cal. potentiometer for the desired output level. The output test function for each channel may be externally wired for remote test operation or a manual override. See wiring diagram. Upper Mount Lower Mounts Spring Clips Output 1 1 2 3 4 Output 2 5 6 7 8 Output Test 1 Output Test 2 9 10 11 12 13 14 15 16 Input 17 18 19 20 Power Calibration Front-mounted Zero and Span potentiometers for each channel can be used to compensate for load and lead variations. 1. Apply power to the module and allow a minimum 30 minute warm up time. 2. Using an accurate calibration source, provide an input to the module equal to the minimum input required for the application. 3. Using an accurate measurement device for the output, adjust the Zero potentiometer for the exact minimum output desired. The Zero control should only be adjusted when the input signal is at its minimum. This will produce the corresponding minimum output signal. The Zero control will provide adjustment for the 4 mA or low end of the signal. 4. Set the input at maximum, and then adjust the Span pot for the exact maximum output desired. The Span control should only be adjusted when the input signal is at its maximum. This will produce the corresponding maximum output signal. The Span control will provide adjustment for the 20 mA or high end of the signal. 5. Repeat adjustments for maximum accuracy. 6. Repeat adjustments for second channel. not used 25 26 27 28 not used Wire terminal torque 0.5 to 0.6 Nm or 4.4 to 5.3 in-lbs Do not connect to unused terminals 3 Operation The DRSP-I accepts a 4-20 mA current input and provides two optically isolated 4-20 mA current outputs that are linearly related to the input. The green input LED provides a visual indication that a signal is being sensed by the input circuitry of the module. It also indicates the input signal strength by changing in intensity as the process changes from minimum to maximum. If the LED fails to illuminate, or fails to change in intensity as the process changes, check the module power or signal input wiring. The two red output LEDs provide a visual indication that the output signals are functioning. They become brighter as the input and each corresponding output change from minimum to maximum. The red LED will only light if the output loop current path is complete. Failure to illuminate or a failure to change in intensity as the process changes may indicate a problem with the module power or signal output wiring. Note that it may be difficult to see the LEDs under bright lighting conditions and low I/O levels. WARRANTY/DISCLAIMER 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’s 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 OMEGA’s customers receive maximum coverage on each product. If the unit malfunctions, it must be returned to the factory for evaluation. OMEGA’s 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. OMEGA’s 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 having been damaged as a result of excessive corrosion; or current, heat, moisture or vibration; improper specification; misapplication; misuse or other operating conditions outside of OMEGA’s control. Components in which wear is not warranted, include but are 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 the company 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 “Basic Component” 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 OMEGA’S 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 NON-WARRANTY REPAIRS, consult FOR WARRANTY RETURNS, please have the OMEGA for current repair charges. Have following information available BEFORE contacting the following information available BEFORE OMEGA: contacting OMEGA: 1.Purchase Order number under which the product 1. Purchase Order number to cover the COST was PURCHASED, of the repair, 2.Model and serial number of the product under 2. Model and serial number of the product, and warranty, and 3. Repair instructions and/or specific problems 3. Repair instructions and/or specific problems relative to the product. relative to the product. OMEGA’s 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 2017 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 the prior written consent of OMEGA ENGINEERING, INC.
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