FANUC Alarm SPOT-212 — PAUSE Iso contactor fault …-both guns
Manufacturer wording — PAUSE Iso contactor fault %s-both guns
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC SPOT-212 (“PAUSE Iso contactor fault …-both guns”): The isolation contactor on the specified weld controller is in a fault condition. First check: Make sure that the CLOSE CONTACTOR macro instruction has been programmed in the
Updated 2026-09-17 · LogrobotLM reference
Description
The isolation contactor on the specified weld controller is in a fault condition. If no program is running, then this message is posted if either the Iso contactor output is high or the Iso contactor input is high. If a program is running, or a manual weld is being executed, then the output, if defined, must be high, and the input, if defined, must be high too.
Remedy
Make sure that the CLOSE CONTACTOR macro instruction has been programmed in the
Related codes
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →