Rockwell Automation 1746-XXXX SLC 500 4-Channel Analog I/O Modules User Manual - Manual (Page 56)

Publication 1746-UM005B-EN-P - June 2004
5-2 Testing Your Module
Inspect the Analog Module
Problems can be prevented by inspecting the analog module before
installing it in the SLC 500 system. Inspection should include the
following steps:
1. Make sure that all voltage/current mode selection DIP switches
are set properly (inputs only).
2. Make sure that all analog module wiring connections are correct
and that there are no missing or broken wires. Check the tightness
of all terminals to make certain wires are secure.
3. Make sure that the shield for the cable used to wire the analog
module is properly grounded. Refer to chapter 3 for additional
information.
4. Make certain that the removable terminal block on the analog
module is secured on the module.
Disconnect Prime Movers (Motion Devices)
During the following test procedures the processor is energized. As a
safety precaution, make sure that machine motion does not occur. To
achieve this:
•
Disconnect the motor wires at the motor starter or the motor
itself. This allows you to test the operation of the starter coil,
verifying that your output circuit is wired correctly and
functioning.
•
To disconnect a solenoid, disengage the valve, leaving the coil
connected.
ATTENTION
Care should be taken to avoid connecting a voltage
source to a channel configured for a current input.
Improper module operation or damage to the
module can occur.
ATTENTION
Do not connect the Belden #8761 foil shield and
drain wire to the analog module terminal block. The
foil shield and drain wire must be connected to earth
ground, which is not available on the analog module
terminal block.