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FANUC Alarm SRVO-020 — SERVO SRDY off (TP)

FANUC SRVO-020 (“SERVO SRDY off (TP)”): The teach pendant cable is disconnected or a momentary break occurred in any one of the TP emergency stop circuits: TP emergency stop, DEADMAN, or fence. First check: Check the teach pendant cable and connections.

Updated 2026-09-17 · LogrobotLM reference

Description

The teach pendant cable is disconnected or a momentary break occurred in any one of the TP emergency stop circuits: TP emergency stop, DEADMAN, or fence.

Remedy

Check the teach pendant cable and connections.

Related codes

SRVO-018SERVO Brake abnormalSRVO-019SERVO SVON inputSRVO-021SERVO SRDY offSRVO-022SERVO SRDY on

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 →