DS200TCCBG1ANE - Common Extended Analog I/O Board

SPECIFICATIONS:

Part Number: DS200TCCBG1ANE
Manufacturer: General Electric
Series: Mark V LM
Product Type: Common Extended Analog I/O Board
Number of channels: 24
Input Signals: 4-20 mA
Power supply voltage: 28 V dc
Voltage Range: 14 to 32 V dc
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: -40°C to 85°C
Size: 30 cm high x 18 cm
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States

FUNCTIONAL DESCRIPTION:

DS200TCCBG1ANE is a Common Extended Analog I/O Board manufactured and designed by General Electric as part of the Mark V LM Series used in GE Speedtronic Gas Turbine Control Systems. The Common Extended Analog I/O Board (TCCB) handles scaling and conditioning for additional analog I/O signals from the TBCB terminal board on the core and the TCEB board on the core. These signals include 4-20 mA/0-1 mA inputs, RTDs, generator and bus voltage inputs, and line current inputs. The STCA board processes these scaled and conditioned signals through the 3PL connector.

TCCB CONNECTORS:

2PL - Distributes power from the TCPS board in the core.
3PL - The Data Bus between the STCA, TCCA, and TCCB boards in core . Conditioned signals are carried on 3PL for transferring to the COREBUS.
JHH - Carries the 4.20 mA/0.1 mA input signals from the TBCB terminal board.
JII - Carries the RTD input signals from the TBCB terminal board.
JMP - Carries the potential and current transformer (PT and CT) signals from the TCEB board in the core.

TCCB RTD CIRCUIT:

The circuitry that supplies excitation to the RTDs from the TBCB terminal board is located on the TCCB board. A steady current is sent through the RTD and when the temperature changes, the resistance changes causing the voltage on the RTD to change. The TCCB board measures, scales, and conditions the voltages. The RTD signals are read from the TBCB terminal board by the TCCB board over the JCC and JDD connectors. The TCCB board sends the signals to the I/O Engine via the 3PL connector. The type of RTD is selected using I/O configuration constants.

TCCB CONFIGURATION:

HARDWARE: The hardware jumpers J1, J2, J3, J4, and J5 enable generator and bus voltage monitoring as well as line current monitoring in the Mark V LM. Jumper J14 connects the RS232 serial port to DCOM, while jumpers J15 and J16 are designated for testing purposes.

SOFTWARE: I/O configuration constants for RTDs, mA inputs, generator, and bus voltage, and line current settings are entered in the I/O Configuration Editor on the HMI as outlined below.

TCCB GENERATOR/BUS VOLTAGE AND CURRENT INPUT CIRCUITS:

Voltage signals from the generator and bus, along with current signals from the line (PT and CT), are scaled and conditioned on the TCCB board. The TCCB uses these signals to determine phase currents and voltages and calculate generator megawatts, power factor, and VARs for power system monitoring. These signals are received from the PTBA terminal board, scaled on the TCEB board in the core, and transmitted to the TCCB board through the JMP connector.

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FREQUENTLY ASKED QUESTIONS:

What is the primary function of the TCCB board?

The TCCB board is responsible for scaling and conditioning additional analog I/O signals, including 4-20 mA/0-1 mA inputs, RTDs, generator and bus voltage inputs, and line current inputs.

What hardware jumpers are associated with the TCCB board?

Jumpers J1, J2, J3, J4, and J5 provide generator and bus voltage monitoring as well as line current monitoring. Jumper J14 connects the RS232 serial port to DCOM, while J15 and J16 are used for testing.

What signals does the TCCB use to calculate generator parameters?

The TCCB uses scaled voltage signals from the generator and bus, and current signals from the line (PT and CT), to determine phase currents and voltages, as well as calculate generator megawatts, power factor, and VARs for power system monitoring.