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FANUC Alarm MOTN-079 — STOP Error in accu_num (G:%d^2)

FANUC MOTN-079 (“STOP Error in accu_num (G:%d^2)”): Internal error: planner received invalid accu_num First check: Perform a cold start: 1.

Updated 2026-08-29 · LogrobotLM reference

Description

Internal error: planner received invalid accu_num

Remedy · Remède

Perform a cold start: 1. Turn off the robot. 2. On the teach pendant, press and hold the SHIFT and RESET keys. 3. While still pressing the SHIFT and RESET keys, turn on the robot. If the error is not cleared, document the events that led to the error and call your FANUC Robotics technical representative.

Frequently asked · Questions fréquentes

What does FANUC alarm MOTN-079 mean?
FANUC MOTN-079 (“STOP Error in accu_num (G:%d^2)”): Internal error: planner received invalid accu_num
How do you troubleshoot FANUC alarm MOTN-079?
Perform a cold start: 1. Turn off the robot. 2. On the teach pendant, press and hold the SHIFT and RESET keys. 3. While still pressing the SHIFT and RESET keys, turn on the robot. If the error is not cleared, document the events that led to the error and call your FANUC Robotics technical representative.

Related codes / Codes liés

MOTN-077STOP Error in seg_time (G:%d^2)MOTN-078STOP Error in accel_ovrd (G:%d^2)MOTN-080STOP Via position required (G:%d^2)MOTN-081STOP Extended position error (G:%d^2)

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →