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FANUC Alarm ARC-039 — STOPL %s^1 AO[%d^2] is not scaled (%s^4,%d^5)

FANUC ARC-039 (“STOPL %s^1 AO[%d^2] is not scaled (%s^4,%d^5)”): The named weld analog output signal is not scaled properly . First check: Adjust the weld analog output scaling in the Weld I/O screen using the CONFIG function key.

Updated 2026-08-29 · LogrobotLM reference

Description

The named weld analog output signal is not scaled properly .

Remedy · Remède

Adjust the weld analog output scaling in the Weld I/O screen using the CONFIG function key.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-039 mean?
FANUC ARC-039 (“STOPL %s^1 AO[%d^2] is not scaled (%s^4,%d^5)”): The named weld analog output signal is not scaled properly .
How do you troubleshoot FANUC alarm ARC-039?
Adjust the weld analog output scaling in the Weld I/O screen using the CONFIG function key.

Related codes / Codes liés

ARC-037WARN Another equipment is inching nowARC-038STOPL Already held another equipment (%s^4,%d^5)ARC-040STOPL Missing I/O: %s^1 (%s^4,%d^5)ARC-041STOPL Weld EQ needs DeviceNet option

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →