FANUC Alarm PALL-159 — Can change UnitLd on palt … only
Manufacturer wording — Can change UnitLd on palt %s only
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PALL-159 (“Can change UnitLd on palt … only”): During product changeovers through the Cycle Stop menu, you are first prompted to enter the pallet number where you want to bring the new unitload. First check: Change the unitload number of the selected pallet.
Updated 2026-09-17 · LogrobotLM reference
Description
During product changeovers through the Cycle Stop menu, you are first prompted to enter the pallet number where you want to bring the new unitload. This is followed by another menu where you can enter the unitload for that pallet and also assign the infeed which brings the new unitload. If you enter this information for a pallet other than the one you chose first, you will get this error.
Remedy
Change the unitload number of the selected pallet.
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 →