DS200TCQCG1BKG - Analog IO Expander Board

SPECIFICATIONS:

Part Number: DS200TCQCG1BKG
Manufacturer: General Electric
Series: LM2500
Product Type: Analog IO Expander Board
Number of Channels: 16 channels.
Input Voltage Range: 0 to 5V
Number of Channels: 2 channels for DAC
Power Requirements: +5 V dc
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States
Manual: GEH-6153

FUNCTIONAL DESCRIPTION:

DS200TCQCG1BKG is an Analog IO Expander Board manufactured and designed by General Electric as part of the LM2500 Series used in GE Aeroderivative Gas Turbine Control Systems. The Analog IO Expander board (TCQC) provides scaling and conditioning for additional analog signals read from the terminal boards of the I/O cores. The TCQC board provides LVDT and LVDR excitation. The IONET termination for and is on the TCQC board in the core. If the optional <21> is installed, that IONET termination is on the TCQC in . The mA input for the megawatt transducer signal is scaled and conditioned on the TCQC board and written to the STCA board via the 19PL connector. Pulse rate inputs are scaled and conditioned on the TCQC board. In most applications, the high-pressure shaft speed signals and occasionally the liquid fuel flow signals are scaled on the TCQC board and written to the TCQA board via the JE connector in the core. The TCQC board communicates the generator and line signals with the STCA board via the JE connector.

TCQC PULSE RATE INPUT CIRCUIT:

The high-pressure shaft pulse rate signals are read from the TCQE board via the JJ connector. The TCQE board signals originate on the PTBA board in the core. The high-pressure shaft signals are written to the TCQA board via the JE connector to be scaled and conditioned and then are written to the STCA board via 3PL. The pulse rate inputs from both the magnetic speed sensors and the TTL-type sensors that landed on the TBQB terminal board pass through the TCQC board via the JH connector. Additional magnetic pickup pulse rate signals are available on the QTBA board and are read by the JGG connector. Some of the signals landed on the PTBA terminal board could be landed on the QTBA terminal board and should not be used on both. The corresponding screws on the QTBA terminal board are not available if the signals are also landed on the PTBA terminal board.

TCQC CONFIGURATION:

Hardware: The first 16 hardware jumpers on the TCQC board configure the output current range for the servo outputs. The even-numbered jumpers select the feedback scaling, while the odd-numbered jumpers select the source output resistance. Hardware jumpers 25 through 36 are for added feedback scaling options for servos one through four, giving them a maximum current range of +/- 240 mA. BJ17 sets the RS232 port for card tests. BJ21 is the stall timer enabled. BJ22 is the oscillator enabled for factory tests. BJ23 and BJ24 are not used. BJ18 and BJ20 limit the P15 and N15 supply to the proximity transducers. Hardware jumpers JP38 and JP39 set the magnetic pickup gain for liquid fuel flow signals in some applications. Refer to Appendix A and the paragraphs below for information on the hardware jumper settings for this board.

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FREQUENTLY ASKED QUESTIONS:

What is an Analog IO Expander Board?

An Analog IO Expander Board is a device that extends the input/output capabilities of a microcontroller or digital system, specifically for handling analog signals. It typically provides additional analog input and output channels beyond what the microcontroller alone can support.

How does an Analog IO Expander Board work?

The board interfaces with a microcontroller or digital system using communication protocols like I2C, SPI, or UART. It translates digital signals from the microcontroller into analog signals for output and converts external analog signals into digital data for the microcontroller to process.

What are the common applications of Analog IO Expander Boards?

These boards are used in applications where the microcontroller has limited analog input/output capabilities. Common applications include sensor interfacing, industrial automation, data acquisition systems, and control systems.