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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 FRCE-163 — F/S watch dog error (F:%d^1)

FANUC FRCE-163 (“F/S watch dog error (F:%d^1)”): Watchdog error occurred on the sensor board. First check: 1. Move the robot to a safe pose. Likely part: Sensor board (Sensor interface board) +1 more.

Updated 2026-08-29 · LogrobotLM reference

Description

Watchdog error occurred on the sensor board.

Remedy · Remède

1. Move the robot to a safe pose. 2. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 3. Remove any sources of noise in the sensor system. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 4. Make sure that the shield lines of the cables are connected to the frame ground. Make sure that the peeled part of the cable in the cabinet is properly connected to the earth plate. If this alarm occurs again, go to the next step. 5. Check the sensor cable connectivity. Check also for cut lines. If there is nothing wrong, go to the next step. 6. Replace the sensor board. If this alarm occurs again, go to the next step. 7. Replace the sensor head.

Part to check / replace · Pièce à contrôler / remplacer

FANUC FRCE-163 points to the hardware below — start here before ordering. · FRCE-163 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-163 mean?
FANUC FRCE-163 (“F/S watch dog error (F:%d^1)”): Watchdog error occurred on the sensor board.
How do you troubleshoot FANUC alarm FRCE-163?
1. Move the robot to a safe pose. 2. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 3. Remove any sources of noise in the sensor system. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 4. Make sure that the shield lines of the cables…
Which part is involved in FANUC FRCE-163?
FRCE-163 points to Sensor board (Sensor interface board), Sensor head (Sensor head). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

FRCE-161F/S timeout error (F:%d^1)FRCE-162F/S temperature data overflow (F:%d^1)FRCE-164F/S temp. lower limit error (F:%d^1)FRCE-165F/S temp. upper limit error (F:%d^1)

Same hardware involved / Même matériel en cause

FRCE-152Sensor boardFRCE-153Sensor boardFRCE-154Sensor boardFRCE-155Sensor board

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 →