Testing Your Module; Inspecting Your Module; Disconnecting Prime Movers - Spectrum Controls SLC 500 User Manual

Inspecting Your Module

CAUTION
Disconnecting Prime
Movers
User's Manual Pub. 0300181-07 Rev. A

Testing Your Module

Read this chapter to prevent potential problems in a systematic and controlled
way. This chapter covers:
Inspecting your module
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Disconnecting prime movers

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Powering up
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Interpreting the LED indicators
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Interpreting I/O error codes
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Troubleshooting
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Before testing your module, test your SLC 500 system using the procedures
described in your system's Installation & Operation Manual.
You can prevent many potential problems by simply inspecting your analog
module:
1. Ensure that all wire connections are correct and secure and that no wires
are missing or broken.
FIELD WIRING ERRORS
Before enabling a channel (through your ladder program), ensure that you
have chosen a proper input range for your input signal.
Failure to observe this precaution can cause improper module operation or
equipment damage.
2. Ensure that the shield for the cable used to wire your module is properly
grounded. Refer to Chapter 2, Installing And Wiring Your Module, for
more information.
3. Ensure that the removable terminal block on your module is secure.
Before testing your module, ensure that machine motion will not occur:
Disconnect motor wires at the motor starter or the motor itself. This lets
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you test the operation of the starter coil, verifying that the output circuit
is wired correctly and functioning.
Disconnect solenoids by disengaging the solenoid valves, leaving the
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coils connected.
If you cannot disconnect a device in the preferred way, open the output circuit as