FANUC Alarm PNT1-020 — Invalid job type received
Manufacturer wording — Invalid job type (%s) received
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PNT1-020 (“Invalid job type received”): An invalid job type was received from the PLC. First check: The PLC must initialize the robot with a valid job prefix.
Updated 2026-09-17 · LogrobotLM reference
Description
An invalid job type was received from the PLC.
Remedy
The PLC must initialize the robot with a valid job prefix.
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 →