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FANUC Alarm ARC-148 — Can't use Pulse in CO2

FANUC ARC-148 (“Can't use Pulse in CO2”): In CO2 setup, you cannot use Pulse mode. First check: Set pulse mode to disabled in the weld schedule DETAIL menu.

Updated 2026-08-29 · LogrobotLM reference

Description

In CO2 setup, you cannot use Pulse mode.

Remedy · Remède

Set pulse mode to disabled in the weld schedule DETAIL menu. If you use the direct command AS instruction, AS[20V, 200A], the pulse mode is always ON. Therefore, use the AS instruction with the weld schedule number.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-148 mean?
FANUC ARC-148 (“Can't use Pulse in CO2”): In CO2 setup, you cannot use Pulse mode.
How do you troubleshoot FANUC alarm ARC-148?
Set pulse mode to disabled in the weld schedule DETAIL menu. If you use the direct command AS instruction, AS[20V, 200A], the pulse mode is always ON. Therefore, use the AS instruction with the weld schedule number.

Related codes / Codes liés

ARC-146Can't use Pulse in CO2(E:%d)ARC-147Can't use Pulse in this setup(E:%d)ARC-149Can't use Pulse in this setupARC-150STOP Invalid op. in weld(0x%X)(E:%d)

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 →