GE Fanuc DS3800DCRA

Technical Specifications

• Board Type: Digital Control and Reference PCB with conformal coating.

• Reference Outputs: 4 analog outputs (0-10V or 4-20mA) for speed, current, torque, and auxiliary references.

• Digital Inputs: 8 optically isolated inputs (24 VDC) for control and status signals.

• Digital Outputs: 8 relay or solid-state outputs for status and alarm indication.

• Reference Resolution: 12-bit DAC for precise reference generation.

• Accuracy: ±0.1% of full scale typical.

• Protection: Overvoltage and short-circuit protection on outputs.

• Communication: RS-232/RS-485 serial interface for external integration.

• Communication: Backplane interface to regulator board via 96-pin DIN connector.

• Status Indicators: 10 LEDs for power, reference status, communication activity, and fault conditions.

• Form Factor: Standard 6U height, 160mm depth, GE 19″ rack compatible.

• Temperature Range: 0°C to +60°C operational.

• Isolation: 1500V RMS between field and logic circuits.

• Power: 5 VDC and ±15 VDC from backplane.

• MTBF: 185,000 hours.

Advantages & Key Features

• Precise Reference Generation: The GE Fanuc DS3800DCRA provides accurate analog reference signals for precise drive control.

• Digital Control Interface: Processes digital commands and generates control references.

• Multiple Reference Outputs: 4 analog outputs for speed, current, torque, and auxiliary references.

• Serial Communication: RS-232/RS-485 interface for external integration.

• Diagnostic LEDs: 10-LED indicator matrix provides comprehensive real-time status.

• Conformal Coating: Protects against dust, moisture, and chemicals.

Application Fields

• Steel & Metal Processing: Reference generation for rolling mill drives.

• Paper & Pulp: Control reference for paper machine sections.

• Material Handling: Reference generation for crane and conveyor systems.

• General Industrial: Any GE DC300/DC200 drive requiring precise reference signals.

Comparison with Alternatives

Key Differentiator: The GE Fanuc DS3800DCRA integrates reference generation and digital control specifically for GE DC300/DC200 drives.

Selection Suggestions & Precautions

1. Reference Requirements: Verify your reference signal requirements match the board’s specifications.

2. Calibration: Verify scaling and calibration for accurate reference generation.

3. Wiring: Use shielded cables for all analog connections.

4. Capacitor Aging: NOS boards stored >5 years may require capacitor inspection.

5. Test Report Required: Request verification of reference accuracy.

6. Spare Strategy: For critical applications, maintain a tested spare.

Final Recommendation

The GE Fanuc DS3800DCRA is a reliable digital control and reference board for GE DC300/DC200 drive systems, providing precise analog reference generation. Prioritize suppliers with comprehensive testing capabilities. For critical applications, maintain a tested spare to minimize downtime. As GE has discontinued this series, sourcing through reputable aftermarket suppliers with refurbishment and testing capabilities is recommended.