FANUC Alarm FRSY-028 — WARN … out of … bad FROM blocks
Manufacturer wording — WARN %d out of %d bad FROM blocks
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC FRSY-028 (“WARN … out of … bad FROM blocks”): The FROM disk is wearing out. First check: The system will continue to operate as long as enough blocks are available.
Updated 2026-09-17 · LogrobotLM reference
Description
The FROM disk is wearing out.
Remedy
The system will continue to operate as long as enough blocks are available. When too many blocks become bad, the FROM will need to be replaced.
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 →