Omron NX-SID Series User Manual page 360

9 Troubleshooting
Safety CPU Unit
Details on the errors (events) that can occur in the Safety CPU Unit are given in the following tables.
 System Errors
Event name System Error
Meaning A hardware error was detected during self-diagnosis of the hardware.
Source Depends on where the Sysmac Stu-
dio is connected and the system con-
figuration.
Error attributes Level
Effects User program
System-defined Variable
variables
None
Cause and Assumed cause
correction
Hardware has failed.
A memory error occurred due to a
transient cause, such as a software
error or excessive noise.
Attached Attached information 1: System information, status code
information
Attached information 2: System information, status code
Attached information 3: System information, status code
Attached information 4: System information, status code
Precautions/ None
Remarks
9 - 18
Source details
Minor fault Recovery
Continues. Operation
Data type
None
Correction
Cycle the power supply. If the error
occurs again, replace the Unit.
Event code 05200000 hex
NX Unit Detection timing
Cycle the power Log category
supply to the
Unit.
The Unit stops operating and the I/O data changes to the
safe states.
Name
None
Prevention
If cycling the power supply restores
normal operation, there may be
excessive noise near the Unit. Imple-
ment noise countermeasures.
NX-series Safety Control Unit User's Manual (Z930)
Continuously
System