Omron NY532-5400 Troubleshooting Manual page 128

3 Error Descriptions and Corrections
Event name Non-volatile Memory Data Corrupted
Meaning A file that must be in non-volatile memory is missing or corrupted.
PLC Function Module
Source
Error attri-
Level
butes
Effects User program
System- Variable
defined
None
variables
Assumed cause
The Controller power supply was
turned OFF while the BUSY indi-
cator was lit.
The power supply to the Control-
ler was interrupted momentarily
Cause and
while the BUSY indicator was lit.
correction
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 1-14.
3-52
Source details
Major fault
Recovery
Stops. Operation
Data type
---
Correction
Clear all of memory and then
download the project from the
Sysmac Studio.
If this error remains even after
making the above corrections,
replace the CPU Unit.
Event code 1002 0000 hex
None Detection
timing
Cycle the
power supply
Log category
or reset the
Controller.
Stops.*
Name
---
Prevention
Do not turn OFF the power sup-
ply while the BUSY indicator is lit.
Take appropriate measures to
ensure that the specified power
with the rated voltage and fre-
quency is supplied in places
where the power supply is unsta-
ble.
None
NY-series Troubleshooting Manual (W564)
At power ON or
Controller reset
System