FANUC Alarm PNT1-519 — Attempt to use illegal cycle number

Manufacturer wording — %sAttempt to use illegal cycle number
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT1-519 (“Attempt to use illegal cycle number”): This error should never occur during normal PaintTool operation. First check: Contact Fanuc service personnel.

Updated 2026-09-17 · LogrobotLM reference

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 →