LogrobotLM

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FANUC Alarm ARC-188 — External emergency input(E:%d)

FANUC ARC-188 (“External emergency input(E:%d)”): An ESTOP signal was input from an external source. First check: Turn off controller power, remove the cause for the error, reset the ESTOP, then turn on the controller again.

Updated 2026-08-29 · LogrobotLM reference

Description

An ESTOP signal was input from an external source.

Remedy · Remède

Turn off controller power, remove the cause for the error, reset the ESTOP, then turn on the controller again.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-188 mean?
FANUC ARC-188 (“External emergency input(E:%d)”): An ESTOP signal was input from an external source.
How do you troubleshoot FANUC alarm ARC-188?
Turn off controller power, remove the cause for the error, reset the ESTOP, then turn on the controller again.

Related codes / Codes liés

ARC-181Encoder alarm(E:%d)ARC-182Motor alarm(E:%d)ARC-189External input1(E:%d)ARC-190External input2(E:%d)

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →