DS3800DMFA GE

Technical Specifications

• Board Type: Digital Motor Feedback and Amplifier PCB with conformal coating.

• Feedback Inputs: 2 analog inputs for motor speed and position feedback.

• Feedback Processing: Speed and position signal conditioning and amplification.

• Signal Amplification: Amplification for feedback signals to ensure reliable communication.

• Signal Conditioning: Buffering, amplification, and isolation for all signals.

• Protection: Overvoltage, overcurrent, and short-circuit protection.

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

• Status Indicators: 10 LEDs for power, feedback status, 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: 185,000 hours.

Advantages & Key Features

• Motor Feedback Processing: The GE Fanuc DS3800DMFA provides accurate speed and position feedback processing.

• Signal Amplification: Ensures proper signal levels for robust communication.

• Signal Conditioning: Buffering, amplification, and isolation for all signals.

• Comprehensive Protection: Overvoltage, overcurrent, and short-circuit protection.

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

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

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

Application Fields

• Steel & Metal Processing: Motor feedback for rolling mill DC motors.

• Paper & Pulp: Motor feedback for paper machine DC drives.

• Material Handling: Motor feedback for crane and conveyor DC motors.

• General Industrial: Any GE DC300/DC200 drive requiring motor feedback processing.

Comparison with Alternatives

Key Differentiator: The GE Fanuc DS3800DMFA integrates motor feedback processing and amplification specifically for GE DC300/DC200 drives.

Selection Suggestions & Precautions

1. Feedback Requirements: Verify your motor feedback requirements match the board’s specifications.

2. Wiring: Use appropriate wiring for feedback connections.

3. Calibration: Verify scaling and calibration for accurate feedback processing.

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

5. Test Report Required: Request verification of feedback processing and amplification functionality.

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

Final Recommendation

The GE Fanuc DS3800DMFA is a reliable digital motor feedback and amplifier board for GE DC300/DC200 drive systems, providing accurate feedback processing and signal amplification. 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.