Mitsubishi Electric Melsec Q Series User Manual page 116

9 Troubleshooting
9.2.2 When "ERR." LED is turned on or flashing
(1) If it is ON
Check item
Did any error occur?
(2) If it is flashing
Check item
Did any error occur?
Table 9.2.2-1 When "ERR." LED is turned on
Check latest error code (Un\G3000), and take a
corrective action as described in section 9.1. After
that, reset CPU module, and check whether it is
turned on.
If "ERR." LED is turned on even after doing the
above, the module may have a failure. Consult
with a nearest sales agent or our company branch
for the symptom of the failure.
Table 9.2.2-2 When "ERR." LED is flashing
The set value may be out of range. Check that the
operating condition settings and the integrated
value are correct.
Correct configuration or changing the request for
error clear (YF*) to ON will recover the error.
When the error is cleared using the error clear
request (YF*), the operation continues with the
previous setting.
* In the case where the initial I/O number of this
module is 0
9 - 4
Action
Action
QE81WH
Reference
Section
9.1
Reference
Section
5.2.2
Section
6
Section
7.6.3