SERVICE CALL CONDITIONS
SM 4-1 B121 Series/B259 Series
Trouble-
shooting
4. TROUBLESHOOTING
4.1 SERVICE CALL CONDITIONS
4.1.1 SUMMARY
There are four levels of service call conditions.
Level Definition Reset Procedure
A
To prevent damage to the machine, the main
machine cannot be operated until the SC has
been reset by a service representative (see the
note below).
Enter SP mode, and then turn
the main power switch off and
on.
B
If the SC was caused by incorrect sensor
detection, the SC can be reset by turning the
main power switch off and on.
Turn the main power switch off
and on.
C
The main machine can be operated as usual,
excluding the unit related to the service call.
Turn the main power switch off
and on.
D
The SC history is updated. The machine can be
operated as usual.
The SC will not be displayed.
Only the SC history is updated.
NOTE:
1) If the problem concerns electrical circuit boards, first disconnect then
reconnect the connectors before replacing the PCBs.
2) If the problem concerns a motor lock, first check the mechanical load
before replacing motors or sensors.
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