KFAS: Fanuc CNC Parts, Service, & Repair
Fanuc ALARM 2 Bi SVPM AL-2 Alarm 434
Alarm 2 on Status 2 of ßi SVPM means,
Inverter:
control power supply undervoltage
Cause and troubleshooting
(a) Check the three-phase input voltage of the amplifier (TB1).
(b) Check the 24 V power supply voltage output from the SVPM (the voltage at CXA2C must be at least 22.8 V).
(c) Check the connector and cable (CXA2C).
(d) Replace the SVPM.
*CAUTION: High Voltage present.
Note: Some
Machine's electrical cabinet doors are equipped with "door interlock"
that will cause the breaker to trip when the door is open.
See the machine's manual for information on how to bypass so that you can observe the alarm LED status
Fanuc CNC Alarm App for your smart phone
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