Spectrum Controls 1746sc-INI4i, User Manual

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User’s Manual Pub. 0300266-04 Rev. A
Chapter 6
Testing Your Module
Read this chapter to prevent potential problems. This chapter covers:
• Inspecting your module.
•
Disconnecting prime movers.
•
Powering up.
• Interpreting the LED indicators.
• Interpreting I/O error codes.
•
Troubleshooting.
Before testing your module, test your SLC 500 system using the procedures
described in your Allen-Bradley system Installation & Operation Manual.
Section 6.1
Inspecting
Your Module
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. Refer to Chapter 2, Installing And Wiring Your
Module, for more information.
WARNING
FIELD WIRING ERRORS
Before enabling a channel (through your ladder program), ensure that you
have not connected a voltage source to a channel configured for a current
input (and vice versa).
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.
4. Ensure that the removable terminal block on your module is secure.
Section 6.2
Disconnecting
Prime Movers
Before testing your module, ensure that machine motion will not occur:
•
Disconnect motor wires at the motor starter or the motor itself. This lets
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
coils connected.
If you cannot disconnect a device in the preferred way, open the output circuit as