Mitsubishi Electric MELSEC-Q Series User Manual page 136

7 FUNCTION
MELSEC-Q
(2) How to turn off the ERR. LED
To turn off the ERR. LED that is on, remove the cause of the error and then
operate the special relay SM50 and special register SD50 to cancel the error.
(This does not apply to reset operation.)
REMARK
Refer to Section 7.12.2 for canceling the error.
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