Rockwell Automation 61C351 2-In/2-Out 4-20 mA Analog Rail Module - Manual (Page 20)

3Ć6
Step 17. Verify that the hardware has been installed correctly.
Before testing, insure that the external hardware will not
respond to output signals from the Analog Rail module.
WARNING
BE CAREFUL WHEN WRITING TO THE OUTPUTS TO INSURE THAT NO
UNEXPECTED MACHINE MOTION WILL RESULT. FAILURE TO OBSERVE THIS
PRECAUTION COULD RESULT IN BODILY INJURY OR DAMAGE TO EQUIPMENT.
For AutoMate systems, you must configure the AutoMate
processor using the AutoMate Programming Executive
(APX) before testing. See section 4.0 for more
information. After configuring the module, use the APX
Point Monitor function to test the module. You can test the
Analog Rail module output channels by writing a value
between 0 and 4095 to those channels and, with an
ammeter, verifying that the output on the terminal points
(4Ć20mA) is proportional. To test input channels, verify
that the input signal in the channel (4Ć20mA) is
proportional to an ammeter reading at the terminal points.
For DCS 5000, AutoMax, or Distributed Power DĆC Drive
systems, use the DCS 5000 or AutoMax Programming
Executive software I/O Monitor function, respectively. Test
output channels by writing a value between 0 and 4095 to
those channels and using an ammeter to verify that the
signal on the terminal points (4Ć20mA) is proportional. To
test input channels, verify that the input signal in the
channel (4Ć20mA) is proportional to a ammeter reading at
the terminal points.
3.3 Module Replacement
Use the following procedure to replace the module.
Step 1.
Stop any application programs that are running.
Step 2. Turn off power to the external hardware connected to the
input and output channels on the faceplate of the
module.
Step 3. Turn off power to the Analog Rail module (120 VAC or
24 VDC).
Step 4. Turn off power to the Reliance device connected to the
Analog Rail module.
Step 5. Disconnect the I/O Rail cable from the Analog Rail
module.
Step 6. Without disconnecting the wiring, remove the 12Ćpoint
terminal from the faceplate and set aside.
Step 7. Without disconnecting the wiring, remove the 4Ćpoint
terminal from the faceplate and set aside. Disconnect the
ground wire from the bottom of the rightĆhand flange.
Step 8. Loosen the screws that hold the Analog Rail module to
the panel and remove the module.