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FANUC Alarm MOTN-158 — PM: Original path invalid

FANUC MOTN-158 (“PM: Original path invalid”): The original path is invalid. First check: Set the original path resume function to TRUE.

Updated 2026-09-17 · LogrobotLM reference

Description

The original path is invalid.

Remedy

Set the original path resume function to TRUE.

Related codes

MOTN-156PM: Config changed(L:…)MOTN-157PM: Internal errorMOTN-159PM: Joint data error (L:…)MOTN-161WARN (… L:…) Can't look ahead

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 →