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FANUC Alarm MOTN-481CS: Can't execute simul-motion

FANUC MOTN-481 (“CS: Can't execute simul-motion”): The robot could not synchronize with external/virtual clock First check: The following items are considered to this alarm.

Updated 2026-08-29 · LogrobotLM reference

Description

The robot could not synchronize with external/virtual clock

Remedy · Remède

The following items are considered to this alarm. Please check them and fix the cause. 1: It is possible for clock speed to be faster than the robot motoion. Please make the clock speed do more slowly than current one. 2: It is possible for motion sentence in TP program to be slower than the colck speed. If the program speed can be faster than current one, make it faster than current program speed. 3: It is possible for motion sentence in TP program to be slower than the colck speed. If the program speed can be faster than current one, make it faster than current program speed.

Frequently asked · Questions fréquentes

What does FANUC alarm MOTN-481 mean?
FANUC MOTN-481 (“CS: Can't execute simul-motion”): The robot could not synchronize with external/virtual clock
How do you troubleshoot FANUC alarm MOTN-481?
The following items are considered to this alarm. Please check them and fix the cause. 1: It is possible for clock speed to be faster than the robot motoion. Please make the clock speed do more slowly than current one. 2: It is possible for motion sentence in TP program to be slower than the colck speed. If the…

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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 →