FANUC Alarm CPMO-078 — Seg Overrun
Manufacturer wording — Seg Overrun (G: %d^2)
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC CPMO-078 (“Seg Overrun”): The system is ready to start next segment, but none are available. First check: Increase the ITP time if the processor loading is high.
Updated 2026-09-17 · LogrobotLM reference
Description
The system is ready to start next segment, but none are available. The path might deviate from the normal path. The segment might be delayed by processor loading or by statements that prevent pre-execution, such as WAIT or BREAK.
Remedy
Increase the ITP time if the processor loading is high. The alarm can be disabled by setting $cp_paramgrp[].$warnmessenb = FALSE.
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 →