Message

Cause of Error

Correction

(221)

ALFE - 15-volt supply missing

Only for machines with an ALFE subsystem.

The ALFE subsystem requires a 24-volt supply. If this is no longer available, the 15 volts generated from it are also missing. Causes for the lack of the 24-volt supply are described under error number 220.

If only the message that the 15-volt supply is missing appears, the voltage transformer of the LFE board has failed.

The controls continue to operate correctly, but the Teach Trace function is no longer available.

Inform ESAB service.