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FANUC Alarm VISN-551 — PAUSE Bad cylindar length

FANUC VISN-551 (“PAUSE Bad cylindar length”): The cylindar length must be larger than twice the cylindar diameter. First check: Correct the cylindar length or the cylindar diameter in the sensor schedule screen.

Updated 2026-09-17 · LogrobotLM reference

Description

The cylindar length must be larger than twice the cylindar diameter.

Remedy

Correct the cylindar length or the cylindar diameter in the sensor schedule screen.

Related codes

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 →