LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm PNT2-137 — Short term Chain abnormal

FANUC PNT2-137 (“Short term Chain abnormal”): A chain failure alarm is detected in the short term. First check: If this error occurs with the DEADMAN switch release alarm, release the DEADMAN switch again and press the DEADMAN switch.

Updated 2026-09-17 · LogrobotLM reference

Description

A chain failure alarm is detected in the short term.

Remedy

If this error occurs with the DEADMAN switch release alarm, release the DEADMAN switch again and press the DEADMAN switch. Or, if this error occurs with another safety signal errors, reproduce the same safety error. And press reset If SRVO-230, 231 occurs, refer the cause and Remedy of SRVO-230,231.

Related codes

PNT2-135TP OFF in T1,T2/Door openPNT2-136Deadman switch releasedPNT2-151Col … range err/preset %overridePNT2-152Data err:Col … preset %override

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 →