LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

FANUC Alarm ROUT-026 — WARN Illegal group number

FANUC ROUT-026 (“WARN Illegal group number”): Invalid group number is specified. First check: Specify exisiting group number.

Updated 2026-09-17 · LogrobotLM reference

Description

Invalid group number is specified.

Remedy

Specify exisiting group number.

Related codes

ROUT-024PAUSE SUBSTR length less than 0ROUT-025ABORT Illegal semaphore numberROUT-027WARN String size not big enoughROUT-028ABORT Illegal file attribute number

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 →