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FANUC Alarm ARC-104 — STOPL SVT: Invalid sequence mode

FANUC ARC-104 (“STOPL SVT: Invalid sequence mode”): Internal error.

Updated 2026-09-17 · LogrobotLM reference

Description

Internal error. Invalid sequence mode command is sent to Servo Torch.

Remedy

Internal error. Cycle power to recover.

Related codes

ARC-102WARN SVT: Unsupported speed unitARC-103STOPL SVT: WFS conversion failedARC-105STOPL Cannot read WSTK input signalARC-106WARN Config of Roboweld is invalid

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 →