LogrobotLM

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FANUC Alarm SRVO-203 — SVON input(SVEMG abnormal)

FANUC SRVO-203 (“SVON input(SVEMG abnormal)”): The SVON signal line was opened while the SVEMG wiring is incorrect. First check: Correct any SVEMG wiring errors.

Updated 2026-08-29 · LogrobotLM reference

Description

The SVON signal line was opened while the SVEMG wiring is incorrect.

Remedy · Remède

Correct any SVEMG wiring errors. Input an SVON signal, and turn the power off and then on again. Refer to the maintenance manual for details.

Frequently asked · Questions fréquentes

What does FANUC alarm SRVO-203 mean?
FANUC SRVO-203 (“SVON input(SVEMG abnormal)”): The SVON signal line was opened while the SVEMG wiring is incorrect.
How do you troubleshoot FANUC alarm SRVO-203?
Correct any SVEMG wiring errors. Input an SVON signal, and turn the power off and then on again. Refer to the maintenance manual for details.

Related codes / Codes liés

SRVO-201SERVO Panel E-stop or SVEMG abnormalSRVO-202SERVO TP E-stop or SVEMG abnormalSRVO-204SYSTEM External(SVEMG abnormal) E-stopSRVO-205SYSTEM Fence open(SVEMG abnormal)

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 →