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Independent Fanuc CNC Parts Specialists
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Fanuc Alarm

Fanuc Alarm, Error Code for faults within Fanuc hardware, software or illegal program/machining operation alarms. Listed below is common Fanuc alarm codes, errors or illegal function or operation which forces your CNC machine tool too fault.


900 (System), 400 (Amp), 300 (Comms), 600 (PMC), 500 (Overtravel), 513x (FSSB), SV0xx errors

LED’s lit on Masterboards L1 to L6 or Main cards (red / green).


Servo: 1, 2, 5, 8, 9, A, b, c, d, F

Axis: HC, HV, LV, DC, VRDY

Spindle: 2, 12, 19, 20, 24, 26, 27, 31, 33, 51, 72, A/A0/A1, B0

Power Module: 1, 2, 4, 5, 7, 24, 56, F

LED’s lit on various servo units.


PS85, PS86, PS101

Currently at DNC we have thousands of Fanuc manuals for operation, maintenance, programming and more. For further more expansive information contact us or call you local CNC service engineer.

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