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LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

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 2026-08-29 · 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 · Remède

Check the teach pendant cable and connections.

Frequently asked · Questions fréquentes

What does FANUC alarm SRVO-020 mean?
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.
How do you troubleshoot FANUC alarm SRVO-020?
Check the teach pendant cable and connections.

Related codes / Codes liés

SRVO-018SERVO Brake abnormalSRVO-019SERVO SVON inputSRVO-021SERVO SRDY off (Group:%d Axis:%d)SRVO-022SERVO SRDY on (Group:%d Axis:%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 →