Mitsubishi Q00JCPU User Manual page 349

6
FUNCTIONS
Diagnosics
Tracking data
transmission error
Tracking capacity
excess error
Tracking cable fault,
tracking hardware
failure
Tracking cable not
connected, failure,
tracking hardware
failure
Redundant
Tracking initial error
system
fault
System switching
(form standby
system to control
system)
*4
occurrence
System switching
(from control system
to standby system)
*4
occurrence
System switching
error
Standby system not
started/stop error
Table6.29 Self-dianostics list (Continued)
Error message Diagnostics timing
TRK.TRANS.
• Always
ERR.
• When END
TRK.SIZE
instruction is
ERROR
executed
• When the CPU
TRK.CABLE
module is powered
ERR.
on/ reset
TRK.
• Always
DISCONNECT
• When the CPU
TRK.INIT.
module is powered
ERROR
on/ reset
CONTROL EXE. • Always
STANDBY • Always
• When system
CAN'T SWITCH switching is
executed
STANDBY
• Always
SYS.DOWN
* 4 : Since this diagnostics indicates the CPU module status, the error message is not displayed in the
"Current error" field on the PLC diagnostics screen of GX Developer.
This error is displayed in only the error history field.
CPU LED status
module
RUN
status
Continue ON
Continue ON
Stop OFF
Continue ON
Stop OFF
Continue ON
Continue ON
Continue ON
Continue ON
: Self-diagnostics is performed
6.17 Self-diagnostics Function
CPU module
ERR. 1) 2) 3) 4)
ON
ON
Flicker
ON
Flicker
OFF
OFF
ON
ON
: Self-diagnostics is not performed
(Continued on next page)
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