GE DS200TCQAG1B Analog I/O Board

GE DS200TCQAG1B Analog I/O Board

Part Number DS200TCQAG1B Manufacturer General Electric Country of Manufacture As Per GE Manufacturing Policy Series Mark V Function Module Availability In StockDS200TCQAG1B is an RST Analog I/O Board manufactured by General Electric as part of the Mark V Series used in gas turbine control systems. Many of the analog signals read in by terminal boards mounted on the I/O cores R1, R2, and R3 are scaled and conditioned by the Analog IO Board (TCQA). The LVDT inputs, servo valve outputs, thermocouple inputs, 420 mA inputs and outputs, vibration inputs, relay driver outputs, pulse inputs, voltage inputs, and generator and line signals are just a few of the signals that are included in this list. 

Through the 3PL connector, some of the signals are written to the STCA board. The JE connector is used to transmit and receive generator and line signals with the TCQC board. The TCQA board scales and conditions 420 mA input signals like the compressor stall-detect signals and fuel flow pressure signals. TCQA CONNECTORS ARE AS FOLLOWS Power from the TCPS board is distributed to the, and cores using 2PL. 3PL - The Data Bus is the connection between the STCA, TCQA, and TCQE boards in the cores. For transmission to the COREBUS, conditionally conditioned signals are conveyed on 3PL. The thermocouple inputs and cold junction compensation for the cores, respectively, are carried by JA from the TBQA board connector JAR/S/T. The 4

20 mA inputs and outputs are transported by JB to and from the JBR terminal board connection on the TBQC. JD - Not utilized in or, but sends trip signals from the core to the TCTG board in the core. JE - Transports the pulse signals, generator and line signals, relay driver outputs, servo valve driver outputs, and so on to/from the TCQC board. carries the inputs for the power supply monitor. TBQC terminal board connector JFR sends the LVDT/LVDR position inputs to JF. 

JG carries the +/- 10 V dc inputs as well as the vibration inputs from the TBQB terminal board connection JGR. TCQA HARDWARE AND SOFTWARE CONFIGURATION HARDWARE: The mA output circuits are selected using the hardware jumpers J1 and J2. The mA output current range, either 20 mA maximum or 200 mA maximum, is configured using J5 and J6. For card tests, the RS232 port is used in J7. J8 turns on an oscillator. For details on the hardware jumper settings for this board, consult Appendix A and the operator interface's hardware jumper panel. 

SOFTWARE: Thermocouple, pulse rate, vibration, LVDT position, and 420 mA input and output I/O Configuration constants are entered in the I/O Configuration Editor found on the operator interface as explained below. PULSE RATE INPUT CIRCUIT The circuitry that adjusts and conditions the pulse rate inputs to read from the TCQC board through the JE connector is found on the TCQA board. These signals are brought into the QTBA and/or PTBA terminal boards from the TTL (transistor to transistor logic) and magnetic pickup inputs. The high-pressure shaft speed inputs are sent to the "R1" core. 

There are other signals that can be used with the pulse rate input circuits on R2 and R3. TCQA 4-20 mA INPUT CIRCUITS The circuitry for the 420 mA and 01 mA input signals is provided by the TCQA board. Through the JB connector, the signals are read from the TBQC terminal board. The voltage drop across the burden resistor, which is caused by the transducer's current drop, is measured by the TCQA board and written to the I/O Engine via the 3PL connector. The current range of the input signals is chosen using hardware jumpers on the TBQC terminal board. TCQA 4-20 mA OUTPUT CIRCUITS The circuitry for driving 420 mA outputs to the TBQC terminal board through the JB connector is provided by the TCQA board. 

Usually, these signals are utilized to power control equipment. TCQA THERMOCOUPLE CIRCUIT The TBQA terminal board is coupled to thermocouples. The thermocouple cold junction reference, which is used by TCQA to compute the cold junction compensation, is provided by circuits that are likewise housed on the TBQA terminal board. The actual temperature read by the thermocouple is determined by the TCQA board using the thermocouple input and compensation setting. The value is read by the I/O Engine using the 3PL connector. I/O configuration constants are used to select the types and curves of thermocouples. 

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