Product Details

Danaher Motion 502-03963-21 is an original PiC900 CPU module and motion processor card for the Giddings & Lewis PiC900 rack system, serving as the central computing unit for integrated PLC and multi-axis motion control. This high-performance processor card executes user logic programs, motion trajectory calculation, axis synchronization and bus communication with all peripheral I/O and servo modules inside the rack. It stores system parameters, motion recipes and user programs, distributes motion commands to servo drives, collects global fault information and supports host connection for program upload and download. As a discontinued original spare part, this Giddings & Lewis CPU is essential for overhauling ageing CNC machine tools and automated production lines equipped with PiC900 control racks. Direct drop-in replacement can quickly restore the whole control system without redesigning the machine logic, minimizing production loss and avoiding expensive platform migration. Built with industrial-grade processor, non-volatile memory and robust anti-interference layout, the 502-03963-21 delivers stable real-time computation under long continuous operation and acts as the core brain for legacy high-precision motion control systems.

Basic Parameters

Brand: Danaher Motion (Giddings & Lewis / Kollmorgen)

Model: 502-03963-21

Product Type: PiC900 CPU module, motion processor card

Category: Giddings & Lewis CPU, industrial spare part

Supply Voltage: 24 V DC

Compatible Rack: PiC900 series control rack

Function: PLC logic + multi-axis motion control

Mounting: Plug-in rack slot installation

Condition: Original industrial spare part

Version: Standard hardware revision

Supported Functions

Real-time PLC logic execution, linear and circular interpolation, multi-axis synchronous motion control, parameter and program storage, host communication, system self-test, global fault detection and alarm output, command distribution to servo and I/O modules.

Core Functions

High-speed motion computation, centralized system scheduling, non-volatile data retention, bus data exchange with rack modules, hardware watchdog for system safety, program upload / download, coordinated sequence control for automation processes.

Hardware Specifications & Environmental Features

Substrate: Multilayer industrial PCB

Connector: Gold-plated edge connector for rack backplane

Working temperature: 0℃ ~ +60℃

Storage temperature: -20℃ ~ +70℃

Surface protection: Conformal coating for dust and moisture resistance

Safety: Integrated hardware watchdog circuit

Mechanical: Reinforced board structure to resist cabinet vibration

Industry Applications: Applied in legacy petrochemical distributed control, old paper making production automation, material handling conveyor lines, packaging and textile machinery, water treatment remote signal collection and large conveyor remote I/O control racks.

Note: Confirm 800 series backplane compatibility, pulse signal type, counting mode and preset logic before ordering.

This is from our current stock.

available stock.xlsx