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FANUC Alarm MOTN-101 — STOP MIR list is empty

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

FANUC MOTN-101 (“STOP MIR list is empty”): Internal interpolator error: mir list is empty when it shouldn’t be First check: Perform a cold start: 1.

Updated 2026-09-17 · LogrobotLM reference

Description

Internal interpolator error: mir list is empty when it shouldn’t be

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-099STOP INTR Fail to get MIRPKTMOTN-100STOP INTR Fail to get FDOMOTN-102STOP SEG list is emptyMOTN-103STOP Send ENB pkt fail

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 →