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FANUC Alarm SYST-221 — Sync Schedule mismatch

FANUC SYST-221 (“Sync Schedule mismatch”): The sync schedule does not match between robots. First check: 1. Make sure same schedule number is used in the program between robots.

Updated 2026-09-17 · LogrobotLM reference

Description

The sync schedule does not match between robots.

Remedy

1. Make sure same schedule number is used in the program between robots. 2. Make sure the schedule content (robot mask, etc.) is the same between robots.

Related codes

SYST-219Need to verify DCS paramSYST-220Sync Time-out errorSYST-222Image backup succeededSYST-223Image backup failed(0x…)

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