LogrobotLM

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 →

FANUC Alarm PNT2-071 — Invalid tutone received

Manufacturer wording — %sInvalid tutone received
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT2-071 (“Invalid tutone received”): For line tracking systems only. First check: None. The robot will ignore this job/color.

Updated 2026-09-17 · LogrobotLM reference

Description

For line tracking systems only. This is a warning that the part has tracked too far to be played. This is because the previous job or color change took too long to play.

Remedy

None. The robot will ignore this job/color.

Related codes

PNT2-069Failed to run robot taskPNT2-070Conveyor direction incorrectPNT2-075Extreme entry position violationPNT2-076Extreme exit position violation

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 →