LogrobotLM

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FANUC Alarm LECO-024 — ArcLink mapping failed

Manufacturer wording — ArcLink mapping failed (%d^1)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC LECO-024 (“ArcLink mapping failed”): An attempt to establish communications between the robot and a Lincoln PowerWave welding power supply failed. First check: Verify that the weld power supply is turned on.

Updated 2026-09-17 · LogrobotLM reference

Description

An attempt to establish communications between the robot and a Lincoln PowerWave welding power supply failed.

Remedy

Verify that the weld power supply is turned on. Verify the ArcLink communications cable is installed properly.

Related codes

LECO-050Cap A under voltage (Cap A volts, Cap B volts)LECO-051Cap B under voltage (Cap A volts, Cap B volts)

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 →