Rockwell Automation 61C351 2-In/2-Out 4-20 mA Analog Rail Module - Manual (Page 21)

3Ć7
Step 9. If the power supply you are using is 24 VDC, you need to
replace the factoryĆinstalled .25A fuse in the new module
with the .75A fuse that came in the shipping box with the
module. Use a screwdriver to release the fuse holder
located on the Analog Rail module faceplate. Pull the fuse
holder out of the module.
Remove the .25A fuse from the fuse holder and replace it
with the .75A fuse. ReĆinsert the fuse holder into the
module. Turn the screwdriver clockwise while pressing
down on the fuse holder at the same time. The fuse
holder must be flush against the faceplate.
Step 10. Remove the two plug connectors from the faceplate of
the new module by pulling them firmly away from the
faceplate.
Step 11. Place the new module over the pattern drilled and attach
it securely to the panel with #10 or M5 studs or bolts.
Step 12. Attach the original 12Ćpoint and 4Ćpoint connectors with
wiring to the faceplate of the module. Use the stud
marked GND" (ground) on the bottom right flange of the
module to connect a ground wire.
Step 13. Set the Mode" switch on the faceplate to the desired
position.
Step 14. Connect the I/O Rail cable between the Analog Rail
connection labeled Input" and the I/O port. Turn on
power to the Reliance device connected to the Analog
Rail module. Recall that the Mode switch is read each
time the Reliance device connected to the module is
powered up. If applicable, reĆconnect the cable between
the Local I/O Head, or the DCS5000 Remote I/O Head,
and the host.
Step 15. Turn on power to the Analog Rail module Input Power"
connections.
Step 16. Turn on power to the external hardware connected to the
Analog Rail module.
Step 17. Verify that the hardware has been installed correctly.
Before testing, insure that the external hardware cannot
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, 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.