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FANUC Alarm SRVO-304 — C-flex: manual brake enabled

FANUC SRVO-304 (“C-flex: manual brake enabled”): The brake release signal of the C-flex robot was input. First check: Release the brake release signal.

Updated 2026-09-17 · LogrobotLM reference

Description

The brake release signal of the C-flex robot was input.

Remedy

Release the brake release signal.

Related codes

SRVO-302SERVO Set Hand broken to ENABLESRVO-303SERVO Set HBK to ENABLE(Rbt:…)SRVO-305Unit ChangeSRVO-310SERVO ABC Unexpected Motion

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 →