I. Product Overview

Model: JANCD-GCP02B (Material Number: DE6428363-B, Version: Rev B)

Category: CNC Core CPU Motherboard (Upgrade for GCP02)

Applicable: YASNAC DTN-1990 / 2000G / 3000G Numerical Control System

Position: System operation, program parsing, multi-axis linkage, I/O and communication management

II. Core Functions

Main Control Processing: Execute G/M codes, interpolation, trajectory planning and logic control

Multi-axis Control: Linked servo / spindle, position closed-loop, parameter calculation

Program Management: Load / Store / Run part programs, macro programs, system parameters

Interface Management: Panel, handwheel, I/O, RS232, system bus communication

System Diagnosis: Power-on self-check, operation monitoring, fault alarm and code generation

III. Technical Parameters

Structure: Full-size long card (approx. 330×140mm), gold finger slots

Processor: 32-bit dedicated CNC processor, main frequency 16–32MHz (improved compared to GCP02)

Memory: Built-in RAM/ROM, capacity and stability superior to GCP02

Interfaces: System bus, I/O bus, panel / handwheel, RS232, expansion slot

Power Supply: Backplane DC5V/±12V, power consumption approximately 28W

Temperature: Working 0–55℃, storage **-20–70℃**

Weight: Approximately 1.3kg

Compatibility: Completely replaces GCP02, compatible with the same series chassis and backplane

IV. Installation and Maintenance

Installation: Insert vertically into the main CPU slot (leftmost long slot of the chassis), tighten screws; leave 50mm space for heat dissipation

Maintenance: Regularly blow dust; check gold fingers for oxidation / burnout; back up system parameters and programs

V. Common Faults

No response upon startup / black screen: CPU core, crystal oscillator, power supply circuit faults

Report "CPU ERROR": Board damage or poor contact

Abnormal operation / freeze: Memory aging, computing unit failure

Large error in axis control following: Axis control module, unstable bus communication