Mitsubishi MELESEC-ST User Manual page 134

12 TROUBLESHOOTING
12 - 9
(2) Output module with fuse
Target module:ST1Y -TE2
ERR. LED is on.
Is the wiring
connected to the
output terminal
shorted?
Not shorted
Change the I/O
module whose ERR.
LED is on.
Has the ERR.
LED turned
off?
YES
Completed
POINT
When the ERR. LED of the output module with fuse turned on, the fuse in the
module is blown.
Change the output module with fuse.
Only the fuse inside the module cannot be changed.
Shorted
Repair the shorted wiring.
NO
Please contact your local
Mitsubishi service center or
representative, explaining a
detailed description of the
problem.
MELSEC-ST
12 - 9