3.3.5 Replacement of Fuse (X8GN, X8GI Printed Board)
If the current exceeding the specified current has run through the I/O unit, the fuse of
the front of the TS3100 controller is blown out. If the alarm saying “I/O Fuse Broken
(8–273)” is displayed, replace the fuse with a new one.
If the fuse of the output module has been blown out, examine and identify an fault
circuit, remedy the cause, then replace the fuse.
Type of fuse Manufacturer
51NM030H PICO
[Replacement procedures]
1) Turn off the controller main power.
2) Remove the fuse holder shown in the above figure. (To release the lock, push
and turn the holder 90° counterclockwise.)
3) Remove the fuse and set a new fuse.
4) Mount the fuse holder. (To lock the holder, push and turn the holder 90°
clockwise.)
5) Turn on the controller main power and make sure that no error will occur.
STE 85306
– 91 –
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