LogrobotLM

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FANUC Alarm APSH-035 — WARN Robot is in Bypass mode

FANUC APSH-035 (“WARN Robot is in Bypass mode”): The MODE input is low, forcing the robot into BYPASS mode. First check: Set the MODE switch to ON.

Updated 2026-09-17 · LogrobotLM reference

Description

The MODE input is low, forcing the robot into BYPASS mode. The robot will now ignore all PLC style initiation.

Remedy

Set the MODE switch to ON. The robot will then re-enter AUTOMATIC mode and again accept PLC signals.

Related codes

APSH-033WARN PLC comm error - timeoutAPSH-034WARN No UOP output definedAPSH-036WARN User JOB has been pausedAPSH-037WARN No UOP input defined

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 →