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FANUC Alarm PNT1-072 — Tracking encoder disconnected

FANUC PNT1-072 (“Tracking encoder disconnected”): The robot is detecting a problem with the tracking encoder cable. First check: Check the encoder cable, and replace it if necessary.

Updated 2026-09-17 · LogrobotLM reference

Description

The robot is detecting a problem with the tracking encoder cable.

Remedy

Check the encoder cable, and replace it if necessary.

Related codes

PNT1-070Conveyor direction incorrectPNT1-071… skipped-over max travelPNT1-073Right-Hand Rule only for this robotPNT1-074DAL alarm(Track encoder:1)

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 →