Giddings & Lewis 502-02165-00 Printed Circuit Board Assembly

The Giddings & Lewis 502-02165-00 Printed Circuit Board Assembly is an industrial PCBA designed for CNC and motion-control systems, handling signal processing and machine control functions. It is commonly installed in Giddings & Lewis machine tools, motion controllers, and OEM automation equipment where reliable electronic control is required, interfacing with motors, encoders, and machine I/O devices. This multi-layer PCBA from Giddings & Lewis (MPN: 502-02165-00; alternate part number 5020216500) functions as a motion control and signal processing board intended for chassis or rack mounting in CNC and industrial automation systems, using machine-specific connectors and terminals for industrial indoor environments, and it weighs approximately 1 lb. Known descriptions identify it as a Rotation Board / Rotation Direction Detection Board. Common replacements include the direct OEM 502-02165-00, refurbished 5020216500 control boards, and repaired boards.