FANUC Alarm PALL-066 — Reg … could not be set

Manufacturer wording — Reg %s could not be set
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC PALL-066 (“Reg … could not be set”): The register operation failed. First check: Check if the register is defined, if it is between 1-64, and if it has the right value.

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 →