B. Troubleshooting
MN05003003E For more information visit: www.eaton.com
B-7
Fault Code Description Action
C40F
ELC program and data in parameters have not been
initialized
C41B Invalid RUN/STOP instruction to extension module
C41C
The number of input/output points of I/O extension unit is
larger than the specified limit
C41D
Number of extension modules exceeds the range
C41F
Failing to write data into memory
C430
Initializing parallel interface error
C440
Hardware error in high-speed counter
C441
Hardware error in high-speed comparator
C442
Hardware error in MCU pulse output
C443
No response from extension unit
C4EE No END command in the program
C4FF Invalid instruction (no such instruction existing)
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