DS3800DFPH GE

Technical Specifications

• Board Type: Digital Field Protection and High-Speed Control PCB with conformal coating.

• Field Control: High-speed field current regulation and field weakening control.

• Field Output: 1 analog output for field current reference (0-10V or 4-20mA) with fast response.

• Field Feedback: 2 analog inputs for field current and voltage feedback with high-speed sampling.

• 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.

• Control Functions: Field weakening, field current limit, field loss detection, and fast field forcing.

• Protection: Field overcurrent, overvoltage, undervoltage, and field loss detection with fast trip.

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

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

• Status Indicators: 14 LEDs for power, field status, communication activity, and fault conditions.

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

• Temperature Range: -10°C to +65°C operational.

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

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

• MTBF: 195,000 hours.

Advantages & Key Features

• High-Speed Field Control: The GE Fanuc DS3800DFPH provides fast field response for demanding applications.

• Enhanced Field Protection: Comprehensive protection including overcurrent, overvoltage, undervoltage, and field loss detection with fast trip.

• Fast Field Forcing: Enables rapid field response for improved motor performance.

• Precise Field Regulation: Accurate field current regulation for optimal motor performance.

• Extended Temperature Range: -10°C to +65°C for demanding environments.

• Diagnostic LEDs: 14-LED indicator matrix provides comprehensive real-time status.

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

Application Fields

• Steel & Metal Processing: High-performance field control for rolling mill DC motors.

• Paper & Pulp: Fast field response for paper machine DC drives.

• Material Handling: Rapid field control for crane and conveyor DC motors.

• General Industrial: Any GE DC300/DC200 drive requiring high-speed field control.

Comparison with Alternatives

Key Differentiator: The GE Fanuc DS3800DFPH offers high-speed field control with fast field forcing for demanding applications.

Selection Suggestions & Precautions

1. High-Performance Requirements: The GE Fanuc DS3800DFPH is recommended for applications requiring fast field response.

2. Protection Requirements: Comprehensive protection ensures safe operation.

3. Field Wiring: Use appropriate wiring for field connections.

4. Calibration: Verify scaling and calibration for accurate field control.

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

6. Test Report Required: Request verification of field control speed and protection functionality.

7. Spare Strategy: For critical high-performance applications, maintain a tested spare.

Final Recommendation

The GE Fanuc DS3800DFPH is a high-speed digital field protection and control board for GE DC300/DC200 drive systems, offering fast field response and comprehensive protection. It is the preferred choice for high-performance DC drive applications requiring rapid field control. 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.