Fagor alarm 3709: Error when refreshing analog inputs

What it means

The cyclic reading process for the analog inputs failed. On these platforms analog I/O is refreshed over the CAN bus through the COMPCI and remote modules, so the failure points to the CAN-side acquisition chain rather than the servos themselves.

Likely causes

• CAN bus wiring, termination or grounding problem
• COMPCI board fault
• analog input module failure or loose connector
• bus saturation (LOOPTIME too short for installed nodes)

Replacement parts

We supply the following units for this alarm — tested, warranty-backed:

• RIOW / RIO remote CAN module

  drive · Common cause

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