JANCD-CG01C Product Description (YASKAWA)

JANCD-CG01C is the upgraded version of the JANCD-CG series of graphic/communication composite control boards (C = improved type / China-compatible version). It is specifically designed for the older generation CNC systems of Yasnac J50/M-500/i80. Based on JANCD-CG01, it optimizes stability, interface compatibility, and anti-interference capabilities, and is the core spare part for the maintenance and upgrade of old CNC equipment. 

I. Basic Information

Brand: YASKAWA (Yaskawa Electric)

Full Model: JANCD-CG01C

Component Number: DF8202498-REV.C (Exclusive revision number for C version)

Board Type: Graphic Control + Communication Interface Composite Board (CNC Display / Interactive Core Board)

Applicable Systems: Yasnac J50, M-500, i80 Series CNC Controllers

Compatible Backplane: JANCD-BB01, JANCD-BB02, JANCD-BB50, JANCD-BB03

Production Status: Out of Production (Only available in second-hand / refurbished / repaired channels)

Size: Approximately 260mm × 130mm × 20mm (Standard JANCD Long Card)

Weight: Approximately 0.68kg

PCB Process: Industrial-grade FR-4 Multi-layer Board, Gold-plated Bus Contacts, Enhanced Anti-interference Design

II. Core Functions (Enhanced Compared to CG01)

1. Display Control (Optimized Version)

Driver: Monochrome / Low-color CRT Display (Compatible with VGA Analog RGB Interface)

Display: System Coordinates, G-code Program, Parameters, Tool Path Trajectory, Alarm Information

Graphics Rendering Speedup: More Smooth Character / Graphic Overlay, Reduced Screen Flickering, Delay Issues

Support CRT to LCD Adaptation (Compatible with Old CNC Systems for LCD Renovation)

2. Human-Machine Interaction (Stability Upgrade)

Connection: Machine Operation Panel / Keyboard (50-pin European Terminal)

Processing: Buttons, Knobs, Mode Switch, Emergency Stop, Handwheel Signals

I/O Circuit Strengthening: Anti-static, Anti-interference Capability Enhancement, Reduced Probability of Button Malfunction, Mis-trigger

3. Communication Management (Core Improvement for C Version)

RS-232C Serial Port Optimization: Baud Rate Supports 9600~19200bps, Communication More Stable

Compatibility: Host Computer, Programming Equipment, Paper Tape Reader, DNC System

Bus Communication Enhancement: More Reliable Data Interaction with Main CPU (JANCD-CP50), Reduces Communication Errors

New Features: Automatic Communication Parameter Verification, Quick Alarm in Case of Exception

4. Status Monitoring (New Diagnostic Function)

Built-in PWR (Green), RUN (Green), ALM (Red) Three-color LED

Support: Power Supply Abnormality, Bus Error, Display Fault, Communication Failure Self-check

C Version New Features: Temperature Monitoring, Display Memory Abnormality Detection, More Accurate Fault Location

III. Hardware Specifications (Exclusive Parameters for C Version)

1. Electrical Parameters

Power Supply: 24V DC ±10% (Backplane Power Supply, Overcurrent / Overvoltage / Reverse Connection Protection)

Power Consumption: ≤7.5W (Slightly Higher than CG01, Compatible with Enhanced Circuit)

Bus Interface: J50 Special Parallel Bus (Gold-plated Contacts, Anti-Oxidation)

2. Processor and Storage

Main Control Chip: 16-bit Special Graphic / Communication Processor (C Version Optimized Frequency)

Memory: 128KB SRAM (C Version Uses Industrial-grade Chips, Stability Enhancement)

Cache: 64KB Battery Backup RAM (Retains Communication Parameters, System Configuration)

Battery: 3.6V Lithium Battery (CR2032 Compatible, Battery Life ≥ 5 Years)

3. External Interfaces (Optimized Layout for C Version)

CRT Display: DB-15 Pin (VGA Analog RGB, Shielded Interface)

Operation Panel: 50-pin European Terminal (Anti-loosening Snap-on Clip)

RS-232C: DB-25 Pin (Industrial-grade Serial Chip, ESD Protection)

Battery Interface: Built-in Socket (Anti-detachment Design)

Expansion Interface: Reserved 1 Set of Debug Interface (Added for C Version)

4. Environmental Indicators Operating temperature: 0°C ~ +50°C (5°C wider than CG01, suitable for harsh workshops)

Storage temperature: -25°C ~ +65°C

Humidity: 10% ~ 85% RH (no condensation)

Vibration resistance: 10~55Hz, ≤5.8m/s² (20% improvement in vibration resistance compared to CG01)

Protection level: IP20 (installed in control cabinet)

Four. Key differences between JANCD-CG01 and JANCD-CG01C Table

Parameters: 

JANCD-CG01 (Basic Version) 

JANCD-CG01C (Improved Version)

Version Definition: 

First-generation graphics / communication board 

C = Improved version / Market adaptation version for China

Part Number: 

DF8202498-REV.A/B 

DF8202498-REV.C

Operating Temperature: 

0°C ~ +45°C 

0°C ~ +50°C (wider temperature range)

Anti-vibration: 

≤4.9m/s² 

≤5.8m/s² (stronger anti-vibration)

Communication Stability: 

Basic RS-232C 

Optimized serial port + bus check (fewer errors)

I/O Circuit: 

Conventional design 

Enhanced anti-static / interference (more stable buttons)

Fault Diagnosis: 

Basic self-check 

New temperature / video memory monitoring (easier to locate faults)

Adaptation Scenarios: 

Routine environment maintenance 

Harsh workshops, upgrading old equipment

V. Typical Application Scenarios

Yasnac J50 series CNC lathes / milling machines 

Display and communication module 

M-500 series machining centers 

Human-machine interaction core board 

i80 series old CNC systems 

Replacement for maintenance (prefer C version)

CRT to LCD display adaptation for control 

Need for higher stability in industrial workshops 

Upgrade of CNC equipment 

VI. Common Faults and Troubleshooting (C version targeted)

Black screen / no display 

Reason: 24V power supply abnormality, CRT interface loose, graphics chip aging 

Troubleshooting: Check PWR light, reinsert CRT cable, test backplane voltage (C version PWR light more sensitive) 

ALM red light constantly on 

Reason: Bus communication failure, main CPU (CP50) failure, battery dead 

Troubleshooting: Reinsert board cards, replace 3.6V battery, check CP50 status (C version ALM light can distinguish communication / video memory faults) 

No response of buttons / false triggering 

Reason: Panel interface loose, I/O circuit damaged, environmental interference 

Troubleshooting: Check panel wiring, clean interface, confirm good grounding (C version has stronger anti-interference, prioritize checking wiring) 

RS-232C communication failure 

Reason: Baud rate mismatch, serial port chip damaged, cable too long 

Troubleshooting: Verify communication parameters, replace serial port chip, cable ≤ 3m (C version comes with serial port check, easy to troubleshoot parameter issues) 

VII. Associated Accessories 

Main CPU board: JANCD-CP50, JANCD-CP50B 

Backplane: JANCD-BB50 (8 slots), JANCD-BB03 (14 slots) 

Servo control board: JANCD-SV50, JANCD-SV51 

I/O board: JANCD-IO50 

Backup battery: 3.6V lithium battery (CR2032 compatible) 

VIII. Notes 

JANCD-CG01C is the stable enhanced version of CG01, with the same core functions, but significantly optimized in environmental adaptability, communication reliability, and fault diagnosis, making it more suitable for long-term operation of old equipment. When maintaining, prefer CG01C, with better compatibility and lifespan; if higher display performance is needed, upgrade to JANCD-CG20/CG24 (confirm system / backplane compatibility).