FANUC Alarm MOTN-177 — Failed to end sync motion
FANUC MOTN-177 (“Failed to end sync motion”): The setup or group mask in program might be incorrect, or the robot is still moving. First check: Confirm that the setup data and group mask are correct in the program.
Updated 2026-09-17 · LogrobotLM reference
Description
The setup or group mask in program might be incorrect, or the robot is still moving.
Remedy
Confirm that the setup data and group mask are correct in the program.
Related codes
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 →