Description
The Giddings & Lewis 502-03994-10R3 is a PiC900 Series CPU module used in Giddings & Lewis industrial motion-control and machine-control systems. Current industrial-part references identify this exact part number as a PiC900 CPU/processor module, and the part is listed as discontinued.
The PiC900 platform uses a modular architecture with CPU, CSM, and I/O modules, allowing machine builders to configure control hardware around specific automation and motion requirements. The platform is associated with legacy Giddings & Lewis motion-control equipment.
🔧 Main Function
The 502-03994-10R3 functions as the central processor for a compatible PiC900 control system. It executes the machine-control program and coordinates connected I/O and motion-control modules.
For replacement applications, the exact CPU revision is important. The 10R3 suffix should be matched with the original system configuration rather than assuming that another PiC900 CPU is automatically interchangeable.
🏭 Typical Applications
• CNC and machine-tool control
• Industrial motion control
• Servo-system coordination
• Factory automation
• Material-handling machinery
• Production equipment
• Legacy Giddings & Lewis control systems
• PiC900 system maintenance
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Manufacturer | Giddings & Lewis |
| Model | 502-03994-10R3 |
| Product Family | PiC900 |
| Product Type | CPU / Processor Module |
| Main Function | Programmable Industrial Computer |
| Application | Machine & Motion Control |
| Architecture | Modular PiC900 Control System |
| CPU Function | Program Execution / System Control |
| I/O | System-dependent |
| Motion Control | PiC900 system-dependent |
| Communication | System/configuration-dependent |
| Memory | Configuration/revision-dependent |
| Power Supply | System-dependent |
| Installation | PiC900 Rack/System |
| Weight | Approx. 1.66 lb / 0.75 kg* |
| Status | Discontinued |
*The published 1.66 lb figure is listed by Radwell for this exact part number. Detailed CPU speed, memory, I/O capacity, and communication specifications were not reliably available in the public sources reviewed, so those values should be confirmed from the original hardware documentation rather than guessed.
⚡ Key Features
• PiC900 Series CPU architecture
• Central processor for industrial machine control
• Modular control-system design
• Designed for motion-control applications
• Compatible with PiC900 system modules
• Suitable for legacy machine maintenance
• Exact 10R3 hardware revision identification
🔌 System Configuration
A typical PiC900 architecture consists of the CPU together with CSM and I/O modules. The platform is designed around modular control hardware, allowing different input, output, resolver, servo, and communication modules to be combined according to the machine application.
Before replacing the CPU, record the existing system configuration, application program, module arrangement, firmware/version information, and communication setup.
🛠️ Installation & Commissioning
- Verify 502-03994-10R3 and the complete hardware revision.
- Confirm compatibility with the existing PiC900 rack.
- Inspect the CPU board and connectors.
- Check system power before installation.
- Verify connected CSM/I/O modules.
- Confirm the correct control program and configuration.
- Check communication with the machine-control system.
- Verify I/O status.
- Perform a controlled machine test.
- Confirm normal motion-control operation.
⚠️ Compatibility Notice
The Giddings & Lewis 502-03994-10R3 is a discontinued PiC900 Series CPU. Replacement should therefore be based on the exact part number, hardware revision, PiC900 rack configuration, software, and connected modules.
Do not substitute a different PiC900 processor simply because it has the same general CPU function. The available references also show related part numbers such as 502-03994-10R4, indicating that revision differences exist within this CPU family.
📦 Product Identification
Brand: Giddings & Lewis
Model: 502-03994-10R3
Series: PiC900
Product Type: CPU / Processor Module
Function: Programmable Industrial Computer
Application: Industrial Machine & Motion Control
Status: Discontinued
