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GE DS200LRPBG1AAA Resolver Board

The GE DS200LRPBG1AAA, also cataloged as the DS200LRPB Resolver Board, operates as a dedicated signal conditioning hardware component for low-range analog acquisition within the GE Mark V Speedtronic turbine control system. The board performs precision amplification, buffering, and isolation for sensor input circuits including thermocouple, RTD, and transmitter signals through VME backplane integration.

Hardware Specifications

Parameter	Specification
Model	DS200LRPBG1AAA
Brand	GE General Electric
Origin	United States
Operating Temp	-30 to +65 deg C
Power Consumption	Not specified
Product Type	Resolver Board / Low-Range Precision Amplifier & Buffer
System Compatibility	GE Mark V Speedtronic
Functional Acronym	LRPB
Assembly Type	Normal Assembly
Interface	VME Backplane
Analog Inputs	8 isolated low-range inputs, +/-10 mV to +/-10 V or 4-20 mA
Amplifier Outputs	4 precision amplified outputs, 0-10 V or 4-20 mA
Buffer Outputs	4 isolated buffered outputs, 0-10 V or 4-20 mA
Digital Inputs	8 optically isolated inputs, 24-250 V DC/AC
Digital Outputs	8 optically isolated outputs, 24-250 V DC/AC
Analog Resolution	18-bit input resolution
Accuracy	+/-0.01% of reading
Communication Ports	RS-232/RS-485, Ethernet 10/100
Protection	Conformal coating, EMI shielding, ESD protection
MTBF	>100,000 hours

Mark V Speedtronic Signal Conditioning Characteristics

The DS200LRPBG1AAA provides isolated analog signal processing within the GE Mark V Speedtronic control architecture. Its input circuits support low-level sensor signals requiring amplification and buffering before distribution to turbine control processing channels.

The board integrates isolated input and output paths to reduce signal interaction between field devices and control electronics. The VME interface provides backplane communication with the Mark V control rack for data exchange and diagnostic handling.

The LRPB board design supports deterministic analog processing through precision amplification circuits, buffered output stages, and EMI protection methods. The hardware configuration is compatible with Mark V simplex and TMR-based control arrangements where signal conditioning consistency is required.

Frequently Asked Questions

Q: What type of signals can the DS200LRPBG1AAA process?
A: The board processes low-range analog signals including thermocouple, RTD, and transmitter inputs. The specified input range supports +/-10 mV to +/-10 V and 4-20 mA signal types.

Q: How is the DS200LRPBG1AAA connected to the Mark V system?
A: The board uses a 6U VME backplane interface for integration with GE Mark V Speedtronic control racks.

Q: Does the board provide electrical isolation for field signals?
A: Yes. The design includes isolated analog inputs, buffered outputs, and optically isolated digital I/O channels for signal separation.

Field Installation Guidelines

Install the DS200LRPBG1AAA only in compatible GE Mark V VME rack positions. Verify rack power removal before insertion or removal to prevent backplane damage.

Maintain proper grounding practices for shielded signal cables. Connect cable shields according to the turbine control cabinet grounding design and avoid routing low-level analog wiring together with high-current switching conductors.

Inspect VME connectors and board edge contacts before installation. Ensure the module is fully seated in the rack guide system and that retaining hardware is secured according to cabinet assembly requirements.

For analog signal wiring, maintain separation between sensor cables, power conductors, and relay circuits to reduce electromagnetic interference. Confirm field signal polarity, isolation requirements, and I/O termination assignments before commissioning.

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