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GE DS2020BRCAG3 Input/Output Combination Module
GE DS2020BRCAG3
The GE DS2020BRCAG3 is a high-reliability and high-precision analog input/output combination module, which belongs to the classic Mark V series gas turbine control system under General Electric (GE). As a key component for signal interface in the Speedtronic™ family, this product plays a core role as a “process signal gateway” in automation systems. It is specifically designed to handle various analog signals related to gas turbine control and protection. It can simultaneously collect analog inputs from on-site sensors (such as 4-20mA signals from pressure and temperature transmitters) and send precise control commands to actuators (such as 4-20mA commands for control valves). The core value of the GE DS2020BRCAG3 lies in its excellent signal processing accuracy, strong channel isolation capability, and extraordinary reliability in extreme industrial environments. It provides accurate data input and output control guarantees for ensuring the safe, efficient, and stable operation of gas turbines, and serves as an important cornerstone for the Mark V system to achieve precise process control.
Product Parameters
- Product Model: DS2020BRCAG3
- Manufacturer: General Electric (GE)
- Product Type: Analog Input/Output Combination Module (for Mark V System)
- Input Section
- Number of Input Points: 4 points
- Input Type: Current: 4-20 mA; Voltage: Optional (usually via jumper or configuration)
- Resolution: 16 bits (including sign bit)
- Accuracy: ±0.1% of full scale (under rated conditions)
- Output Section
- Number of Output Points: 4 points
- Output Type: Current: 4-20 mA
- Resolution: 16 bits
- Accuracy: ±0.1% of full scale (under rated conditions)
- General Specifications
- Isolation: Isolation between channels, and between channels and backplane
- Backplane Connection: Communicates with <CPU> via Mark V system backplane
- Power Supply: Powered by Mark V rack backplane
- Operating Temperature: 0°C to +60°C (suitable for control cabinet environment)
- Installation Method: Modular, inserted into the designated slot of the Mark V system rack
Structure and Composition
The GE DS2020BRCAG3 adopts a classic board-type design, with its PCB board enclosed in a metal card frame, usually equipped with a front handle for easy insertion and removal. The front of the module is equipped with a series of status indicators to display the module status, power supply, and the activity or fault status of each channel. Internally, the module is clearly divided into two processing areas (input and output) both electrically and physically. The input side includes 4 independent signal conditioning circuits and a 16-bit analog-to-digital converter (ADC), and each channel is equipped with a precision sampling resistor, filtering, and protection circuits. The output side includes 4 independent 16-bit digital-to-analog converters (DAC) and output drive circuits. The key isolation circuit provides complete electrical isolation between the input channels, output channels, and backplane logic, effectively preventing ground loops and high-voltage transients from damaging the module or backplane. The module is connected to the Mark V system backplane through a multi-pin connector at the rear to obtain power and exchange data. There may be jumpers or DIP switches on the module for configuring signal types.
Main Features and Advantages
- High-Precision Signal Processing: The GE DS2020BRCAG3 provides 16-bit high resolution and an accuracy better than ±0.1%, ensuring the accuracy of process monitoring and the precision of control output. Whether collecting small pressure changes or outputting precise valve position commands, its performance can meet the extreme requirements of gas turbines for control accuracy, providing data support for safe and efficient operation.
- Strong Isolation and Reliability: One of the core advantages of this module is its comprehensive isolation design. The complete isolation between input channels, between output channels, and between channels and the backplane effectively suppresses noise interference, prevents the spread of faults between channels, and protects the expensive <CPU> and backplane from damage caused by high voltage on the on-site side. This design is the key to its long-term stable operation in the harsh electrical environment of gas turbine control cabinets.
- Seamless System Integration: As a native component of the Mark V Speedtronic™ system, the DS2020BRCAG3 achieves seamless integration. Its configuration is completed through dedicated engineering station software, and the I/O mapping is processed automatically. For maintenance engineers, it works in collaboration with other system modules to form a highly reliable whole, minimizing downtime.
Application Fields
The application fields of the GE DS2020BRCAG3 are highly focused on critical power infrastructure. It is mainly used in General Electric (GE) Frame 5, 6, and 7 series gas turbines and steam turbine units, and is a standard analog interface module in the Mark V control system. Specific applications include: collecting key process parameters of gas turbines (such as intake pressure, exhaust temperature, and fuel flow) (input), and controlling fuel control valves, inlet guide vane (IGV) actuators, etc. (output). In scenarios such as power plants and oil and gas pipeline booster stations, all units controlled by the Mark V system are core application scenarios for the DS2020BRCAG3.
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