DS3800DGTA - Daughterboard Assembly Module

SPECIFICATIONS:

Part Number: DS3800DGTA
Manufacturer: General Electric
Series: Mark IV
Product Type: Daughterboard Assembly Module
Number of channels: 12
Input Pulse Rate: 10 Hz to 25 kHz
Input Voltage Range: 24 V DC
Operating Voltage: ±5V, ±15V DC
Operating Temperature Range: 0°C to +60°C
Communication Interface: Backplane bus
Weight: 0.45 kg
Power Consumption: 2–5 Watts
Size: 8.25 cm high x 4.18 cm
Repair: 3-7 days
Availability: In Stock
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

DS3800DGTA is a Daughterboard Assembly Module manufactured and designed by General Electric as part of the Mark IV Series used in GE Speedtronic Control Systems. It is a specialized circuit board designed to enhance the capabilities of the main control system in gas turbine engines. These cards facilitate various functions, such as data acquisition from sensors that monitor critical parameters like temperature, pressure, and vibration, while also performing signal processing to ensure accurate data transmission. It performs signal conditioning, scaling, and interfacing functions for analog and digital I/O channels. The module facilitates high-speed data exchange between the field devices and the core controller via the backplane bus. It includes onboard passive components, edge connectors, and calibration points to support real-time control logic, trip status signaling, and redundancy where applicable.

• Data Acquisition: Captures real-time data from field-connected sensors that monitor critical turbine parameters such as temperature, pressure, shaft speed, fuel flow, and vibration levels. This ensures continuous feedback for precise turbine control and performance optimization.

• Signal Conditioning: Filters, scales, and amplifies raw analog and digital signals from sensors to reduce electrical noise, normalize voltage/current levels, and prepare data for accurate processing by the control system. This enhances signal integrity and ensures reliable control input.

• Communication Interface: Supports high-speed data communication between the turbine control system and peripheral systems such as Supervisory Control and Data Acquisition (SCADA), Distributed Control Systems (DCS), or Human-Machine Interfaces (HMI). Uses industry-standard protocols to ensure seamless integration and real-time monitoring.

• Control Logic Execution: Processes real-time control logic based on input conditions, executing predefined algorithms to manage turbine functions such as startup, synchronization, load control, and shutdown. Enables closed-loop control by responding dynamically to system demands and operational limits.

• Input/Output Management: Handles multiple discrete and analog input/output channels, ensuring smooth interfacing with field devices like RTDs, thermocouples, proximity probes, pressure transmitters, servo actuators, and solenoids. It enables precise coordination of turbine subsystems.

WOC offers the largest inventory of OEM replacement parts for GE Speedtronic Control Systems. We also provide expert repair services for faulty boards, along with a wide selection of unused and refurbished modules, each backed by a warranty. Our experienced support team is available 24/7 to assist with your OEM and automation requirements. For inquiries regarding pricing, availability, or repair services, please contact us via phone or email.

FREQUENTLY ASKED QUESTIONS:

What should I do if the module is not responding after installation?

First, check that the board is firmly seated in its slot and all edge connectors are properly aligned. Verify that the backplane is supplying the correct voltages (±5V, ±15V). Also, inspect for any bent pins or loose ribbon cables.

What tools can I use for troubleshooting this board?

A digital multimeter (DMM) can be used to check voltage levels at test points. An oscilloscope may help analyze signal integrity. Some systems support loopback tests and built-in diagnostics accessible through the operator interface.

How can I verify if the inputs/outputs are functioning correctly?

Use simulated input signals (loop calibration tools or test signal injectors) and monitor system response via the controller or HMI. Output channels can be verified using field test lamps or diagnostic indicators.