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FANUC Alarm PNT1-140 — Brake Release Switch On

FANUC PNT1-140 (“Brake Release Switch On”): The Brake Release switch on the Standard Operator Panel is ON. First check: Turn the Brake Release switch to the OFF position to engage the brakes.

Updated 2026-09-17 · LogrobotLM reference

Description

The Brake Release switch on the Standard Operator Panel is ON.

Remedy

Turn the Brake Release switch to the OFF position to engage the brakes.

Related codes

PNT1-138Chain failure is repairedPNT1-139Cannot reset chain failurePNT1-151Col … range err/preset %overridePNT1-152Data 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 →