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FANUC Alarm PNT1-137 — Short term Chain abnormal

FANUC PNT1-137 (“Short term Chain abnormal”): This alarm is echoed to the PLC when a SRVO-235 SERVO Short term Chain abnormal alarm is posted. First check: Refer to the SRVO-235 alarm for the remedy.

Updated 2026-09-17 · LogrobotLM reference

Description

This alarm is echoed to the PLC when a SRVO-235 SERVO Short term Chain abnormal alarm is posted. Refer to the SRVO-235 alarm for the cause.

Remedy

Refer to the SRVO-235 alarm for the remedy.

Related codes

PNT1-135TP OFF in T1,T2/Door openPNT1-136Deadman switch releasedPNT1-138Chain failure is repairedPNT1-139Cannot reset chain failure

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 →