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FANUC Alarm FRCE-173 — F/S external error (F:…)

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

FANUC FRCE-173 (“F/S external error (F:…)”): Error(s) occurred on the sensor board. First check: Refer to the remedy of the alarm displayed at the same time.

Updated 2026-09-17 · LogrobotLM reference

Description

Error(s) occurred on the sensor board.

Remedy

Refer to the remedy of the alarm displayed at the same time.

Related codes

FRCE-171F/S output data frozen (F:…)FRCE-172F/S communication error (F:…)FRCE-174F/S sensor limit warning (F:…)FRCE-175F/S force differential limit (F:…)

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 →