Omron NJ501-1400 User Manual page 213

Event name Non-volatile Memory Data Corrupted
Meaning A file that must be in non-volatile memory is missing or corrupted.
Source PLC Function Module
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
The Controller power supply was
turned OFF while the BUSY indicator
was lit.
The power supply to the Controller
was interrupted momentarily while the
BUSY indicator was lit.
The CPU Unit has failed.
Attached None
information
Precautions/ None
Remarks
* For details, refer to I/O Operation for Major Fault Level Controller Errors on page 5-6.
NJ-series CPU Unit Hardware User's Manual (W500)
Source details
Major fault Recovery
Stops. Operation
Data type
---
Correction
Clear all of memory and then down-
load the project from the Sysmac Stu-
dio.
If this error remains even after making
the above corrections, replace the
CPU Unit.
5 Troubleshooting
Event code 10020000 hex
None Detection
timing
Cycle the power Log category
supply or reset
the Controller.
Stops.*
Name
---
Prevention
Do not turn OFF the power supply
while the BUSY indicator is lit.
Take appropriate measures to ensure
that the specified power with the rated
voltage and frequency is supplied in
places where the power supply is
unstable.
None
At power ON or
Controller reset
System
5
5-33