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FANUC Alarm PAIN-173 — PAUS Chain 1 (+24v) abnormal

FANUC PAIN-173 (“PAUS Chain 1 (+24v) abnormal”): Single chain 1 (+24V) failure occured First check: Repair the circuit of the chain 1 (+24V) on hardware Set CHAIN FAILURE detection to TRUE on SYSTEM/CONFIG screen And push reset button on Teach pendant

Updated 2026-09-17 · LogrobotLM reference

Description

Single chain 1 (+24V) failure occured

Remedy

Repair the circuit of the chain 1 (+24V) on hardware Set CHAIN FAILURE detection to TRUE on SYSTEM/CONFIG screen And push reset button on Teach pendant

Related codes

PAIN-171WARN Data Error (see FR:dterrors.ls)PAIN-172PAUS Servo DisconnectPAIN-174PAUS Chain 2 (0v) abnormalPAIN-175PAUS NTED input

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 →