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Section
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Troubleshooting Flowcharts
Use the following flowcharts to troubleshoot errors that occur during operation.
Main Check
Check for non-fatal errors. (See page 131.)
Error
Replace the CPU
Unit.
PWR indicator lit?
RUN indicator lit?
ERR/ALM indicator
flashing?
Is I/O sequence
normal?
Operating
environment normal?
Operation stopped. Check for fatal errors.
(See page 130.)
Check I/O. (See page 132.)
Check operating environment. (See page 134.)
Yes
Check power supply. (See page 129.)
No
No
No
No
Flashing
Yes
Yes
Not lit
Yes
Summary of Contents for CPM2C
Page 1: ...CPM2C Programmable Controllers Operation Manual Produced June 1999...
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