GE DS200TCQCG1B Analog I/O Expander Board

Product Description

The DS200TCQCG1B is an Analog I/O Expander Board manufactured by General Electric for the Mark VLM control system. It scales and conditions analog signals received from I/O core terminal boards before forwarding them to other control system boards. Furthermore, it provides excitation for LVDT and LVDR devices and supports configurable servo output current and feedback scaling through onboard hardware jumpers.

Functional Description

The DS200TCQCG1B processes additional analog signals from the terminal boards in the I/O cores. It scales and conditions these signals before transferring them to the appropriate control system boards.

Its main functions include:

• Analog signal conditioning: Scales and conditions analog inputs, including the milliamp signal from the megawatt transducer, before transferring the processed signal through the 19PL connector to the STCA board.
• Transducer excitation: Provides excitation for LVDT and LVDR devices.
• Pulse-rate signal processing: Scales and conditions pulse-rate inputs, including high-pressure shaft speed signals and, in some configurations, liquid fuel flow signals.
• Board-to-board communication: Exchanges generator and line signals with the STCA board through the JE connector.
• Signal distribution: Transfers processed high-pressure shaft speed and liquid fuel flow signals to the TCQA board through the JE connector in the R1 core, where applicable.

Hardware Jumper Configuration

The DS200TCQCG1B uses hardware jumpers to configure servo output current, feedback scaling, communication and other board functions. Correct jumper settings depend on the control system application.

• BJ1-BJ16: Configure the servo output current range. Odd-numbered jumpers select source output resistance, while even-numbered jumpers determine feedback scaling.
• BJ25-BJ36: Provide additional feedback scaling options for servos 1 through 4, allowing a maximum current range of +240 mA.
• BJ17: Configures the RS232 port for card testing.
• BJ18 and BJ20: Restrict the P15 and N15 supply to proximity transducers.
• BJ21: Enables the stall timer.
• BJ22: Enables the oscillator for factory testing.
• BJ23 and BJ24: Have no designated function.
• JP38 and JP39: Control magnetic pickup gain for liquid fuel flow signals in certain applications.

Meanwhile, these jumper settings should be checked against the intended application before replacing or configuring the board. In addition, maintenance personnel should retain the existing configuration when replacing a working card unless the applicable control system documentation specifies otherwise.

Technical Specifications

Frequently Asked Questions

Q: What is the main function of the DS200TCQCG1B?

A: The DS200TCQCG1B scales and conditions analog signals from the I/O core terminal boards. It also provides LVDT and LVDR excitation and processes signals such as megawatt transducer inputs, shaft speed and liquid fuel flow.

Q: Can the servo output current be configured on this board?

A: Yes. Jumpers BJ1-BJ16 configure servo output current and feedback scaling. Furthermore, jumpers BJ25-BJ36 provide additional feedback scaling options for servos 1 through 4, with a maximum current range of +240 mA.

Q: Which manual covers the DS200TCQCG1B?

A: The associated manual reference is GEH-6153. It should be used to verify application-specific jumper settings and configuration requirements.

 Other Attributes

• Series: GE Multilin 350 Feeder
• Country of Origin: USA
• Lead Time: In Stock, 2 Working Days

In Stock Hot Items of The GE General Electric Mark VI 

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