FANUC Alarm PALL-206 — Invalid Unit load req: ul …
Manufacturer wording — Invalid Unit load req: ul %s
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PALL-206 (“Invalid Unit load req: ul …”): The requested unitload gripper type cannot be run on this controller. First check: Choose another unitload.
Updated 2026-09-17 · LogrobotLM reference
Description
The requested unitload gripper type cannot be run on this controller. That is, a multi-case gripper unitload can only be run if the multi- case option is loaded on the controller.
Remedy
Choose another unitload.
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 →