0-57100 Control Logic Module (O-57100) from Reliance Electric is a compact PCB designed for use inside Reliance drives, typically the Mini Pak Plus DC variable speed drive, where it provides the regulator and drive-control logic. The board embeds multiple components—six potentiometers, two transformers, one relay, several transistors, and two surface-wired female pin connectors—and is drilled for mounting hardware in one corner to simplify panel installation. The part has been discontinued by the manufacturer and is no longer produced.
