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 MOTN-059 — STOP Null segment received

Manufacturer wording — STOP Null segment received (G:%d^2)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MOTN-059 (“STOP Null segment received”): Planner received null seg when not expecting one First check: Perform a cold start: 1.

Updated 2026-09-17 · LogrobotLM reference

Description

Planner received null seg when not expecting one

Remedy

Perform a cold start: 1. Turn off the robot. 2. On the teach pendant, press and hold the

Related codes

MOTN-057STOP Invalid mirMOTN-058STOP Invalid cancel requestMOTN-060STOP Uninitialized base vecMOTN-061STOP Uninitialized distance

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 →