FANUC Alarm PNT1-462 — Invalid instruction argument

Manufacturer wording — %sInvalid instruction argument
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PNT1-462 (“Invalid instruction argument”): During program execution, a paint instruction was encountered with an out of range argument. First check: Edit the current program and verify that all instruction arguments are valid.

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 →