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FANUC Alarm MOTN-315 — STOP Command speed is changed CJ

FANUC MOTN-315 (“STOP Command speed is changed CJ”): Can’t resume motion on the original path due to command speed change. First check: Modify back the command speed, or abort program

Updated 2026-09-17 · LogrobotLM reference

Description

Can’t resume motion on the original path due to command speed change.

Remedy

Modify back the command speed, or abort program

Related codes

MOTN-313STOP Can't resume motion CJ(2)MOTN-314SABRT Can't resume motion CJ(3)MOTN-316STOP Override change not allowedMOTN-317STOP unknown error (MO317)

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 →