Fagor alarm 6004: Error when initializing the BUS CAN
Fagor CAN/remote I/O error · Fagor 8060/8065/8070
What it means
At CNC 8060/8065 startup the COMPCI CAN interface failed to initialize, so the CAN keyboard and/or remote nodes cannot be started. The accompanying code distinguishes CANopen failures (14 = COMPCI microprocessor reset trouble, 15 = slave connection/configuration problems) from CANfagor ones (-1/-10/-11 = COMPCI or remote-node hardware test failures, -7/-8 = node identification conflicts).
Likely causes
- COMPCI card not seated or failing its hardware test
- two nodes set to the same group/address combination
- CANopen slaves present but not matching the configured bus
Replacement parts
We supply the following units for this alarm — tested, warranty-backed:
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COMPCI
CNC CAN interface card · Common cause
Need the part urgently?
Send us alarm 6004 with your machine details — typical RFQ turnaround is 24–48h.