Fanuc Alpha Servo Module alarms & faults. Series of Fanuc Alpha servo amplifiers from A06B-6079, 6080, 6089, 6090, 6096, 6097. Includes PWM, type-B, FSSB interface on single, dual and triple channel configurations. Please contact us at CNC for more information regards the meaning of the alarms on your Fanuc Alpha Servo Module. Fault diagnosis, testing on our rigs, closed loop feedback and a 180 day warranty on repair and exchange!

Alarm CodeDescription of faults
1Inverter: Internal cooling fan stopped
2Inverter: Control power supply under voltage
5Inverter: DC link under voltage
6Inverter: Overheat
8Inverter: DC link current alarm (L axis)
8.Inverter: IPM alarm (L axis)
9Inverter: DC link current alarm (M axis)
9.Inverter: IPM alarm (M axis)
BlinkingInverter: abnormal control power supply
AInverter: DC Link Current alarm (N axis)
A.Inverter: IPM alarm (N axis)
bInverter: DC Inverter: Control Command Failure
cInverter: DC Inverter: Control Command Failure
dInverter: DC Inverter: Control Command Failure
FInverter: cooling fan stopped of the radiator
PInverter: Communication error between amplifier and module
UInverter: FSSB communication error (COP10B)
LInverter: FSSB communication error (COP10A)

If you require later drives such as the Fanuc Alpha i series servo amplifiers then they mostly follow the above alarms.