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ABB 580 Series Drives Motor Disconnect Detection Technical Note

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This technical note explains how ABB drives (ACH580, ACQ580, ACS580, ACS380, ACH180) can monitor a motor disconnect without requiring auxiliary contacts, using parameter 95.26 to detect three-phase current dropout. It covers configuration, behavior differences from motor phase loss detection, firmware version requirements, and how to program a relay output for remote status monitoring.

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