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FANUC Alarm MOTN-126 — STOP Can't init CH KPT

Manufacturer wording — STOP Can't init CH KPT (G:%d^2)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MOTN-126 (“STOP Can't init CH KPT”): System internal error First check: Perform a cold start: 1.

Updated 2026-09-17 · LogrobotLM reference

Description

System internal error

Remedy

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

MOTN-124STOP INTR:Bad Mirpkt req_codeMOTN-125STOP INTR got illegal pktMOTN-127STOP Can't detatch CH PKTMOTN-128STOP Group mtn not supported

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 →