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FANUC Alarm FRCE-381F/S SLC2 error(STATERR) (F:%d^1)

FANUC FRCE-381 (“F/S SLC2 error(STATERR) (F:%d^1)”): Sensor board initialization failed. First check: 1. Turn the controller OFF, then ON again. Likely part: Sensor board (Sensor interface board).

Updated 2026-08-29 · LogrobotLM reference

Description

Sensor board initialization failed.

Remedy · Remède

1. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 2. Replace the sensor board.

Part to check / replace · Pièce à contrôler / remplacer

FANUC FRCE-381 points to the hardware below — start here before ordering. · FRCE-381 met en cause l'organe ci-dessous : commencez par là.

Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.

Frequently asked · Questions fréquentes

What does FANUC alarm FRCE-381 mean?
FANUC FRCE-381 (“F/S SLC2 error(STATERR) (F:%d^1)”): Sensor board initialization failed.
How do you troubleshoot FANUC alarm FRCE-381?
1. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 2. Replace the sensor board.
Which part is involved in FANUC FRCE-381?
FRCE-381 points to Sensor board (Sensor interface board). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

Same hardware involved / Même matériel en cause

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 →