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FANUC Alarm FRCE-181 — Force sensor type error (F:…)

Manufacturer wording — Force sensor type error (F:%d^1)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC FRCE-181 (“Force sensor type error (F:…)”): The force sensor type has been changed. First check: 1. Move the robot to a safe position. Likely part: Sensor board (Sensor interface board) +1 more.

Updated 2026-09-17 · LogrobotLM reference

Description

The force sensor type has been changed.

Remedy

1. Move the robot to a safe position. 2. Turn the controller OFF, then ON again. If this alarm occurs again, go to the next step. 3. Check the sensor cable connectivity. Check also for cut lines. If there is nothing wrong, go to the next step. 4. Replace the sensor board. If this alarm occurs again, go to the next step. 5. Replace the sensor head.

Part to check / replace

FANUC FRCE-181 points to the hardware below — start here before ordering.

Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.

Related codes

FRCE-179F/S SLC2 slave comm. error (F:…)FRCE-180F/S ITP counter error (F:…)FRCE-199Single singularity error (F:…)FRCE-201Complex singularity error (F:…)

Same hardware involved

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. How this reference is built →