FANUC Alarm PNT1-108 — MCC alarm
FANUC PNT1-108 (“MCC alarm”): The servo amplifier magnetic contactor (MCC) is welded closed. First check: Refer to the troubleshooting section in the Controller Series Electrical Connection and Maintenance Manual.
Updated 2026-09-17 · LogrobotLM reference
Description
The servo amplifier magnetic contactor (MCC) is welded closed.
Remedy
Refer to the troubleshooting section in the Controller Series Electrical Connection and Maintenance Manual.
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 →