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Operation:

The VSVO provides four channels including bi-directional servo current outputs, LVDT position feedback, LVDT excitation, and pulse rate flow inputs.The TSVO provides excitation for, and accepts inputs from, up to six LVDT valve position inputs. One, two, three, or four LVDTs can be selected for each servo control loop, and if three inputs are used, they can be used for gas turbine flow measurement applications. These signals are transmitted through the TSVO and sent directly to the front of the VSVO board at J5. Each servo output is equipped with a firmware-controlled, independent suicide relay that short-circuits the VSVO output signal to common in the event of a power failure and returns it to the nominal limit when a manual reset command is issued. Diagnostics monitor the output status of each servo voltage, current, and suicide relay.

Description:

General Electric’s IS200TSVOH1BAA circuit board assembly is part of the company’s Mark VI turbine control system. The Mark VI has been monitoring and controlling industrial turbine systems for decades. Meanwhile, Speedtronic systems have been in use since the late 1960s.

This IS200TSVOH1BAA is used as a servo valve termination board. While MKVI systems use many different termination boards, this particular board is a barrier type board that uses screws to clamp the wire connections. When connecting wires to the terminals, it is important to strip the wires to the correct length; otherwise, the screw clamps will be difficult to access.

This IS200TSVOH1BAA has two termination blocks located on one side of the board. Other connectors used on the board include d-shell connectors and vertical plugs. The board has six jumper switches that can be used to change the way a particular circuit works. Each jumper switch on the board has multiple settings. Before removing a jumper from the unit, be sure to make note of the way the jumpers were set on the previous board; best practice suggests duplicating these settings on the new assembly.

Other board components include relays, transformers, ICs, and transistors. For more information on these components and how the board should be located, wired, installed, and maintained, refer to the GE Speedtronic manual.

The IS200VSVOH1B is a VME servo control board manufactured by General Electric as part of the Mark VI series used in gas turbine control systems. The four electrohydraulic servo valves that operate the steam/fuel valves are under the direction of the servo control (VSVO) board. Typically, two servo terminal boards are used to separate these four channels (TSVO or DSVO). The valve position (LVDT) is determined using a linear variable differential transformer.

The VSVO performs a cyclic control algorithm. Three cables are connected to the VSVO at the J5 plug on the front panel and at the J3/J4 connectors on the VME rack. the JR1 connector is used for the

TSVO to provide simplex signals, while the JR1. JS1 and JT1 connectors are used to fan out TMR signals. The external trip of the protection module is inserted into JD1 or JD2.

IS200VSVOH1B Installation

Close the VME’s processor rack.

Place the board in place, then hand press the top and bottom ties into the base of the edge connector.

Tighten the plus screws at the top and bottom of the front panel.

The cable connections to the TSVO terminal board are made at the lower J3 and J4 connectors of the VME rack. They are locking the connections in order to secure the cables. Start the VME rack and check the diagnostic indicators on the front panel.

IS200VSVOH1B Operation

LVDT position feedback, LVDT excitation, bi-directional servo current outputs, and pulse rate flow inputs are contained within the four channels of the VSVO.

The TSVO can provide excitation for up to six LVDT valve position inputs, and the TSVO accepts inputs from them as well. For each servo control loop, one, two, three or four LVDTs can be selected.

For applications measuring gas turbine flow, three inputs are provided. These signals are routed through the TSVO and sent directly to J5 on the front of the VSVO board. when power is lost, each servo output has a dedicated suicide relay which, when controlled by firmware, short-circuits the VSVO output signals to common and then returns to normal operation after a manual reset command.

Each servo’s output voltage, current, and suicide relay are monitored through the diagnostic function.

GE IS200TVIBH2BBB The IS200TVIBH2B is a turbine control line module.

It is a high-performance, high-reliability module designed to meet the demanding requirements of turbine control applications.

The module is designed for use in a variety of applications including power generation, oil and gas, and petrochemicals.

The vibration termination board IS200TVIBH2B is one of the boards in the Mark VIe control system designed by General Electric.

This board is not compatible with any of the boards in the Mark VIe family, with the exception of the VVIB board. This board will have similar functionality to the TVBA board.

This board can be used not only in Mark VIe systems but also in Mark VI systems.

When the TVIB board is used in a Mark VI system, it can be supported in a TMR or Simplex system.

Up to two panels can be used to connect to the VVIB board. When this board is used in a TMR system, a single TVIB board will connect to three VVIB boards.

The IS200TVIBH2B board does not have any potentiometers and does not require any calibration.

On the face of the board, there are sixteen jumper switches that can be modified to suit the user’s needs. There are two barrier terminals for different types of vibration.

Technical Specifications

Number of I/O channels: 16

Input Type: Analog

Input range: 0 to 10 V

Output type: analog

Output range: 0 to 10 V

Accuracy: 0.1%

Resolution: 12 bit

Sample rate: 100 kHz

MTBF: Over 100.000 hours

APPLICATIONS

Power Generation

Oil & Gas

Petrochemical

Chemical

Food & Beverage

Pharmaceuticals

Water and Wastewater

Features:

Terminal Block Design: This IS200TBCIH1C features a rugged rectangular design with two long green terminals that provide ample connectivity for analog output signals.

Connectivity: The board features 6 jack connector ports, each equipped with 37 female connector points for seamless integration with external devices.

Potentiometers: 16 small potentiometers, organized in two rows, provide enhanced control and adjustment capabilities, allowing fine tuning of the output signals.

Noise and Surge Suppression: Filters designed to reduce high frequency noise and suppress surges, ensuring signal integrity and system stability.

Current Load Capability: The first 21 outputs are capable of handling 2.5 mA of current per point, and the last three outputs are loaded with 10 mA to meet varying output requirements.

Hardware Configuration: Simplified configuration without hardware setup or jumpers simplifies integration within the Speedtronic MKVI system.

Reliability: Known for its reliability and durability, it ensures consistent performance in demanding turbine control environments.

Compatibility:

The IS200TBCIH1C terminal block is fully compatible and integrated into the Speedtronic MKVI gas turbine control system.

It is terminated via external I/O for use primarily with GE Speedtronic Mark VI series turbine control systems.

The board’s multi-layer PCB design, fitted with SMD components and connectors, ensures compatibility with different system architectures and configurations.

GE’s ongoing revision demonstrates GE’s ongoing efforts to improve compatibility and integration with the Speedtronic MKVI system.

Applications:

The IS200TBCIH1C terminal block has applications in a variety of industries, including:

Power Generation: used in power plants equipped with gas turbines to monitor and control analog output signals critical to turbine operation and efficiency.

Oil & Gas: plays a vital role in controlling processes associated with gas turbines used in extraction, refining and distribution operations.

Chemical Processing: Provides accurate analog output signals for precise control of various chemical processes in the chemical processing industry.

Manufacturing: Ensures smooth operation and control of turbine-driven machinery in manufacturing facilities.

Renewable Energy: Integrate into control systems for renewable energy sources such as wind or solar to effectively manage analog output signals.

Water Treatment: Controls pumps, valves, and other equipment critical to water treatment processes to ensure efficient and reliable operation.

Petrochemical: Supporting precise control of processes within refineries and petrochemical plants to improve operational efficiency and safety.

Aerospace: Turbine control systems for aircraft engines, ensuring reliable and accurate analog output control.

Functional Description:

The IS2020JPDBG01 is a power distribution board manufactured and designed by General Electric as part of the Mark VIe series used in GE distributed control systems.

The JPDB board for AC power distribution regulates, monitors, and decentralizes AC power. The module contains two line filters and an IS200JPDB board.

The module contains two independent AC power distribution circuits, each rated at 20 A at 115 or 230 V AC.

The input circuits should be wired in parallel to prevent PPDA alarms when only one AC power source is available.

Each circuit has one fuse output and three fuse and switch branch circuit outputs. the JPDF 125 V DC power distribution module has an optional connection.

The IS200JPDB has status feedback for all fuse circuits and passive supervisory circuits for both AC ranges.

On connector P1 is the supervisory circuitry for connecting cables to the board containing the power supply diagnostic PPDA I/O packages.

Port P2 on the IS200JPDB allows monitoring signals from other power distribution system cards to pass through.

Compatibility:

The JPDE, JPDF, JPDS, and JPDM feedback signal P1 and P2 connections on the IS2020JPDB are compatible, resulting in a PPDA I/O package. The AC input on the JPDF module of the same name can be used with connector JAF2.

Installation:

In the PDM cabinet, the IS2020JPDB module is mounted vertically on a metal rear base. The protective grounding system and the IS2020JPDB sheet metal must be connected.

For the first AC circuit, input power is delivered to terminals AC1H (line) and AC1N (neutral), and for the second AC circuit, input power is delivered to AC2H (line) and AC2N (neutral).

There must be a grounded neutral connection on both AC inputs. Follow the documentation for the system’s output circuit connections.

If the distribution system has a PPDA Power Diagnostics I/O package, a 50-pin ribbon cable is required to connect JPDB connection P1 to connector P2 on the board with the PPDA. Other core PDM boards can use the P2 connector for this connection.