6-19
6 Troubleshooting
CJ2 CPU Unit Hardware User’s Manual
6-1 CPU Unit Errors
6
6-1-7 Handling Errors
An Option Board error will occur if the Option Board is removed while the power is being supplied.
z Recovery Processing Flow
z Error Causes and Remedies
Option Board Errors
POWER RUN ERR/ALM Error flag Error code
Error infor-
mation
Lit. Lit. Flashing. A315.13
A402.00
00D1 ---
Suspected cause of
error
Confirmation method Remedy
Prevention of recur-
rence
The Option Board was
removed while the system
was operating.
Check the mating of the
Option Board connector.
Reconnect. Check for vibration and
shock.
Option Board failure If restarting does not clear
the error, check whether
the error is cleared by
replacing the Option
Board.
Replace the Option Board. Same as at the left.
Check the location of the error.
Yes
No
Option Board error occurs.
Restart the System.
Replace the Option Board.
Restart the PLC.
Restart the PLC.
Check the Unit connections.
Recovered?
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