PC800, 850-8 25
40 Troubleshooting SEN00793-02
E-9 Part of display on machine monitor is missing
E-10 Machine monitor displays contents irrelevant to the model
Failure
phenomenon
• Part of display on machine monitor is missing
Part of display on machine monitor is missing during
starting switch in ON.
Relative
information
Possible causes
and standard
value in normal
state
Cause Standard value in normalcy and references for troubleshooting
1 Machine monitor LCD fault
aTurn the starting switch ON during the troubleshooting.
If all the LCD (Liquid Crystal Display) in the machine monitor light up
(i.e. the screen becomes totally white) by the following switching opera-
tion, then the machine monitor is normal.
• Switching operation: [ ] + [ P ] (push switches simultaneously.)
2 Defective machine monitor
If cause 1 is not detected, the machine monitor may be defective. (Since
trouble is in the machine monitor, troubleshooting cannot be carried
out.)
Failure
information
• Machine monitor displays contents irrelevant to the model.
Relative
information
Possible causes
and standard
value in normal
state
Cause Standard value in normalcy and references for troubleshooting
1
Model code signal fault
(Internal failure)
aTurn the starting switch in ON during the troubleshooting (monitoring).
Monitoring code Item Normal display
00200 Controller model code PC800
If the display on the machine monitor is normal, troubleshoot failure
code [E-8].
2 Defective machine monitor
If cause 1 is not detected, the machine monitor may be defective. (Since
trouble is in the machine monitor, troubleshooting cannot be carried
out.)