Fanuc Alpha I Power Supply Alarms and Error Codes

Fanuc Alpha I Power Supply Alarms. These apply to : PSM-5.5i, PSM-11i, PSM-15i, PSM-26i, PSM-30i, PSM-37i

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Alarm CodeDescription of Alarm/Error
1 ( For PSM-5.5i to 15i)
The main circuit power module (IPM) has dedected an abnormal condition.
1 ( For PSM-5.5i to 37i)
Over current flowed into the input of the main circuit.
2A cooling fan for the control circuit has stopped.
3The temperature of the main circuit heat sink has risen abnormally.
4In the main circuit the DC voltage (DC link) has dropped.
5a. The input power supply is abnormal.

b. The main circuit capacitor was not recharged within the specified time.

6The control power supply voltage decreases.
7In the main circuit the DC voltage at the DC link is abnormally high.
AA cooling fan of external cooling has stopped.
EThe input power supply is abnormal (open phase)