What is the AFCI (ArcCheck) functionality, its self-test procedure, and fault clearing options.​

The optional AFCI detects DC-side arcing (IEC 63027). Arc Enable turns it on/off. Arc Self Check (done in Normal state) verifies module health (ARC Test Succeed or ArcSelfFault). Arc Clear: Disabled (default) = auto-clear 4x in 5min; Manual = select Yes to clear immediately. Arc Version shows module software.