GE DS200TCCAG1B Common Analog I/O Board

GE DS200TCCAG1B Common Analog I/O Board

Functional Description

The DS200TCCAG1B Common Analog I/O Board (TCCA), located in the core, scales and conditions

analog signals from the CTBA, TBQA, and TBCA terminal boards mounted in the core. These signals

include 4-20 mA inputs and outputs, RTD inputs , thermocouple inputs, shaft voltage inputs, and shaft

current inputs. The signals are written to the STCA board via the 3PL connector.

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.

JAA - Carries the 4ñ20 mA output signals to the CTBA terminal board.

JBB - Carries the shaft voltage and current signals and 4ñ20 mA input signals from the CTBA terminal board.

JCC - Carries RTD input signals from the TBCA terminal board.

JDD - Carries RTD input signals from the TBCA terminal board.

JAR/S/T - Carries Thermocouple input signals and cold junction inputs from the TBQA terminal board.

JC- Carries the Power supply diagnostic signals from TCPS.

JEE - Typically not used.

The hardware document in Appendix B and the signal flow diagrams in Appendix D contain more

information.

Configuration

Hardware. There are three hardware jumpers ñ J1, JP2, and JP3 on the TCCA board. J1 is used to

enable/disable the serial RS232 port. JP2 is used to disable the oscillator for card test. JP3 is used for factory

test. Refer to Appendix A for information on the hardware jumper settings for this board.

Software. I/O configuration constants for the thermocouples, RTDs, mA inputs and outputs, and the shaft

voltage and current settings are entered in the I/O Configuration Editor located on the HMI as described

below.

Technical Specifications