6-19
6 Troubleshooting
CJ2 CPU Unit Hardware User’s Manual
6-1 CPU Unit Errors
6
6-1-7 Handling Errors
A battery error occurs when the battery voltage drops.
z Recovery Processing Flow
z Error Causes and Remedies
Battery Error (Non-fatal Error)
POWER RUN ERR/ALM
CX-Program-
mer display
Error flag Error code
Error infor-
mation
Lit. Not lit. Flashing. Battery Error A402.04 00F7 ---
Suspected cause of
error
Confirmation method Remedy
Prevention of recur-
rence
A connector is discon-
nected.
Check the connection at
the connector.
Reconnect the connector. Check for vibration and
shock.
Battery voltage is low. Check whether the error is
cleared by replacing the
battery.
Replace the battery. Periodically replace the
battery.
Battery error occurs.
Check the battery
connections.
Normal?
Yes
No
Reconnect
Restart the System.
Replace the battery.
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