Category: GE

These instructions are not intended to cover all details or variations in the equipment, nor do they provide whether installation, operation or maintenance requires further information or presents special problems

For the buyer, those not adequately covered shall refer to General Electric Company.

To the extent required, the products described herein comply with applicable ANSI, IEEE, and NEMA standards; however, with respect to local codes and ordinances, as they vary widely.

The 745 Transformer Protection System™ is a high-speed, www.abb-drive.com multiprocessor-based three-phase, two-winding or three-winding transformer management relay.

for the protection and management of primary small, medium and large power transformers.

The 745 combines percentage differential, overcurrent, frequency and overexcitation protection elements as well as individual harmonic and total harmonic distortion (THD) monitoring in one economical package.

The relay offers a variety of adaptive relaying functions:

-Adaptive harmonic suppression, which resolves in inflow

-Adaptive time overcurrent element, which can be based on the harmonic content of the transformer capacity calculated when supplying high load currents

-Multiple set point groups that allow the user to enter and dynamically select from up to four relay settings to address different protection requirements for power system configurations

Dynamic CT ratio mismatch correction for monitoring on-load tap positions and automatically correcting CT ratio mismatches.

FlexLogic™ which allows PLC-style equations based on logic inputs and protections to be assigned to any of the 745’s output elements.

The 745 also includes powerful test and simulation capabilities.

This allows protection designs to be based on captured or computer-generated relay operation test capability waveform data, which can be converted to a digital format and downloaded to the 745.

The 745’s analogue buffer can be used for “playback”. The recorded waveform capture feature also provides waveform data for fault, surge or alarm conditions.

The auto-configuration feature eliminates the need for any special CT connections by eliminating the need for all CTs with Y-connections.

This digital relay shall be capable of providing motor protection and management functions.

Its main protection function shall be thermal modelling, which consists of the following 4 main components:

– Overload curve

– Negative sequence unbalance/single phase offset

– RTD offset (hot/cold motor compensation)

– Motor cooling time constant

Special attention should be paid to the protection of the rotor during stall and acceleration. If the rotor is to be protected during stall and acceleration, the

The stall/acceleration curve must be voltage compensated and www.abb-drive.com must be equipped with a speed switch input.

The stator protection thermal model should combine positive and negative sequence currents and RTD winding feedback inputs.

This allows the model to be dynamic at all times, thus allowing the motor load and temperature to be tracked.

The protection functions should include:

– Stall

– Mechanical blocking

– 12 RTD inputs

– Ground overcurrent

– Short circuit

– Differential protection (using CT inputs from both ends of the motor winding (6))

– Voltage transformer input (to provide over-voltage, under-voltage, reverse-phase, over-frequency and under-frequency functions)

The motor management relay shall be fully equipped for power measurement. The event log shall be capable of storing the last 40 events.

It shall be capable of storing 16 cycles of waveform data for each trip occurrence. The relay shall be equipped with an analogue function which is used to test the relay.

The user interface includes:

– A 40 byte vacuum phosphor screen and keypad for access to actual and set values.

– An RS232 port on the front panel for programming the set values.

– an RS485 port using open protocol (selectable baud rate up to 19.200 bps)

– A separate auxiliary RS485 port for increased security or for the exclusive use of maintenance personnel.

– The interface software should be in Windows® format

The relays are of extractable construction for easy testing, maintenance and replacement of parts.

Intuitive transformer protection

The Multiline™ 345 is a member of the Multilin 3 series of protective relay platforms designed for the protection, control and management of power transformers as primary or standby protection.

The Multiline™ 345 provides advanced transformer protection, control and monitoring in an economical withdrawable or non-withdrawable design.

The 345 contains a full range of independent protection and control elements as well as advanced communications, metering, monitoring and diagnostics.

Key Benefits

-Safe, high-speed protection with improved energisation suppression

-Field-proven algorithms and reliable protection against unintentional tripping or inadequate protection

-Integrated transformer thermal monitoring for asset management maintenance optimisation

-Earth current monitoring sensitive earth fault protection for detecting 5% of earth fault windings

-Temperature monitoring via remote RTDs using RMIO modules supporting up to 12 RTDs

Easy to use and flexible with one-step setup, universal CT inputs and assignable CT inputs

-Flexible communications with multiple ports and www.abb-drive.com protocols for seamless integration

-Strong security and hierarchical password control for centralised management

Pull-out design simplifies testing, commissioning and maintenance for increased process uptime

-Application flexibility with programmable logic elements

-Switchgear diagnostics and simple troubleshooting output test modes via trip/close circuit monitoring and LEDs and digits

-Environmental monitoring system for monitoring operating conditions and planning preventive maintenance

-Rugged design that exceeds industry standards with automotive-grade components and advanced test procedures such as accelerated life cycle testing

-Available in pull-out or non-withdraw-out options

-Simplifies migration of legacy MII Series relays to Series 3 platforms

-Intuitive configuration software and user-friendly logic configuration tools

Applications

-Primary or standby protection for two-winding power transformers

-Protection of reactors and autotransformers

-Protection of distribution transformers of all sizes and voltage classes

-Applications requiring fast and secure communication

-Corrosion and humidity protection for harsh environments

Protection and control

Dual-slope unrestricted differential protection with unique double breakpoints for differentiated

-Second harmonic surge and fifth harmonic overexcitation suppression

-Thermal overload and restricted earth fault (RGF/87g)

-Integrated overcurrent element

-Circuit breaker fault and lockout function metering and monitoring

-Integrated metering

-Event recorder: 256 events (1ms time stamp)

-Programmable oscilloscope, up to 32 samples per cycle, digital status and fault reports

-Relay health diagnostics and circuit breaker monitoring

-Security and password control

-SNTP or IRIG-B time synchronised communication

Pre-USB and post-serial, copper and fibre optic Ethernet ports

-Multiple communication protocols including IEC 61850. IEC 61850 GOOSE, Modbus® TCP/IP, Modbus RTU, DNP 3.0. IEC 60870-5-104. IEC 60870-5-103

EnerVista™ software – simplifies setup and configuration

-Powerful document management system

-Full-featured monitoring and data logging

-Maintenance and troubleshooting tools

-Seamless integration toolkit

-Setup MII Series conversion tools to Series 3

OVERVIEW

The 345 is a microprocessor-based system for primary or standby protection of power transformers with two windings.

The 345 also provides a very cost-effective differential solution for distribution transformers as well as primary substation protection for standby transformers.

The 345 offers advanced automatic algorithms for amplitude and phase compensation for more than twenty two-winding transformers, and fast and safe bias differential double slope double breakpoint protection.

Features

The 345 is equipped to detect restricted earth fault elements with earth faults down to 5% of the transformer’s windings, basic thermal protection and a complete set of phase, earth, neutral and negative sequential overcurrent protection.

Two identical groups with protected elements are designed to meet these applications where a change in settings is required.

The 345 provides excellent accessibility and transparency of power system conditions and events through its target information and four-line, 20-character display, transient and event recorder.

and the powerful EnerVista PC programme.

Easy-to-use drawer and non-drawer configurations The 345 is available in both drawer and non-drawer configurations.

The drawer chassis design345 simplifies installation and improves field safety, such as the need to rewire equipment after opening a switchgear door or cancelling a test.

Like communication cables stay connected even when the relay is withdrawn, communication status is retained.

The 345 Protective Relay Chassis is used in conjunction with the pull-out relay which is available separately as a partial replacement or in a test environment.

This pull-out relay without chassis can also be ordered as a spare unit.

Application flexibility and ease of wiring The available universal CT inputs as well as the software configurable input ranges (1A and/or 5A) help to standardise the design and reduce the number of order codes.

There is also no need to change the entire design in case of relay changes or future switchgear modifications.

Mixed inputs of 1A or 5A favour ground CTs for different applications from phase CTs. easy to remove terminal wiring and in-system testing or troubleshooting.

Easily retrofitted compact and withdrawable Function 345 relays minimise installation requirements and enable easy retrofitting of existing cases.

As well as allowing side-mounting of multiple relays side-by-side on the panel. the 345 also offers pluggable RS485 and IRIG-B connections for easy troubleshooting.

Quick and Easy Configuration The 345 requires quick setup screens for standard transformers with minimal configuration protection applications.

With the powerful EnerVista 3 Series setup software, device configuration is accomplished in one simple step.

Advanced Communications Easily Integrate into New or Existing Infrastructures With a variety of Ethernet and serial port options, as well as multiple protocols offered by the 345

and flexible options for new communications as well as existing energy management, SCADA and DCS systems.

About the DS200TCEAG1B

This DS200TCEAG1B printed circuit board or PCB for short was originally developed to exist as an Emergency Overspeed Board within the greater Mark V Turbine Control System Series. The Mark V Series is one of the more recent additions to the slew of Mark-named product series offered with General Electric Speedtronic technology, and specifically applies to wind, steam, or gas turbine control systems and automated drive assemblies. This DS200TCEAG1B printed circuit board is not the original Emergency Overspeed Board that was manufactured by General Electric for placement in their Mark V Turbine Control System Series; that would be the similarly-named DS200TCEAG1 printed circuit board notably missing this DS200TCEAG1B product offering’s singular B-rated functional product revision.

Hardware Tips and Specifications

This DS200TCEAG1B Emergency Overspeed Board has its own particular set of hardware component inclusions and specifications, as revealed in original Mark V Series instructional manual documentation. The General Electric Emergency Overspeed Board model DS200TCEAG1B features one microprocessor and multiple programmable read only memory (PROM) modules. It also contains 3 fuses, 30 jumpers, and a pair of bayonet connectors. The DS200TCEAG1B board monitors the Mark V Series drive for over speed and flame detection trip conditions and shuts down the drive as appropriate. The bayonet connectors in the assembly of this DS200TCEAG1B Emergency Overspeed Board are used to connect the board to other devices and boards in the drive; these male bayonet connectors on the end of the cables require some www.abb-drive.com consideration before you connect them to the female connectors on the board, as detailed in depth in GE instructional manual materials. To remove a bayonet connector, hold the connector with one hand and with the other hand secure the board to keep it from bending or moving. Pull the bayonet connector out of the female connector on the board and put the cable aside until you are ready to connect it to the replacement board.

Several specific connectors and integrated circuits are incorporated into the assembly of this TCEA-abbreviated PCB. This DS200TCEAG1B Mark V Series printed circuit board’s circuits are tasked with various diagnostic functions relating to this DS200TCEAG1B PCB’s greater overspeed processing functionality. Some of these integrated circuits include the TCEA Flame Detection Circuits, the TCEA Turbine Overspeed Circuit, and the TCEA Automatic Synchronizing Circuit. Each of these circuits has been named in terms of their functionality to the greater DS200TCEAG1B printed circuit board and Mark V Series automated drive assembly.The various connectors made available to owners of the DS200TCEAG1B Emergency Overspeed Board comprise of:

The J7 PD Core Power Distribution Connector

.The JK TCEB Board Signal Connector

.The JL TCTG Board Trip Signal Connector

.The JW TCEB Board Flame Detection Signal Connector

.The JX1 and JX2 Daisy Chained IONET Connectors

Similarly to the integrated circuits discussed above, all of these connectors available in the assembly of this DS200TCEAG1B printed circuit board have been described in terms of their factory-printed nomenclatures and intended applications. All of the hardware in the assembly of this TCEA-abbreviated Emergency Overspeed Board should receive at least some basis of protection from the thick protective layer offered by this DS200TCEAG1B PCB’s normal style of PCB protective coating.

Frequently Asked Questions about DS200TCEAG1B

What kind of microprocessor does DS200TCEAG1B have?

DS200TCEAG1B has an 80196 microprocessor.

What programs DS200TCEAG1B?

There are a series of berg jumpers for DS200TCEAG1B that program DS200TCEAG1B to the location in the < P > core where DS200TCEAG1B resides. If you move DS200TCEAG1B, you must also move the berg jumpers.

Besides overspeed, what is DS200TCEAG1B responsible for?

DS200TCEAG1B is responsible for processing the overspeed but DS200TCEAG1B is also responsible for flame detection trip signals.

SPECIFICATIONS

Part No.: IS220PAICH1B

Manufacturer: General Electric

Country of Manufacture: United States(USA)

Product Type: Analog I/O pack

Series: Mark VIe

The IS220PAICH1B is a GE Analog I/O pack from the Mark VIe series. The PAIC pack serves as the electrical interface between one or two I/O Ethernet networks and an analog input terminal board. The pack includes a processor board shared by all Mark VIe distributed I/O packs and an acquisition board dedicated to the analog input function.

IS220PAICH1B Functional Description

The pack can handle up to ten analog inputs, the first eight of which can be configured as 5 V or 10 V inputs or 0-20 mA current loop inputs. The last two inputs can be set to 1 mA or 0-20 mA current inputs.

The load terminal resistors for the current loop inputs are located on the terminal board, and the PAIC senses voltage across these resistors. The PAICH1 also has two 0-20 mA current loop outputs. The PAICH2 includes additional hardware to support 0-200 mA current on the first output.

The pack is powered by a three-pin power input and two RJ45 Ethernet connectors. www.abb-drive.com  Output is via a DC-37 pin connector that is directly connected to the associated terminal board connector. LED indicator lights provide visual diagnostics.

Processor features

The processor board is linked to an acquisition board dedicated to the function of the I/O pack or module. When input power is applied, the soft-start circuit increases the voltage available on the processor board. The local power supplies are turned on in sequence, and the processor reset is disabled.

After finishing self-test routines, the processor loads application code specific to the I/O pack or module type from flash memory. The application code reads board ID information to ensure that the application code, acquisition board, and terminal board are all correctly matched.

Auto-Reconfiguration

The Auto-Reconfiguration feature allows the operator to replace I/O packs without having to manually reconfigure each pack or module.

When the controller detects an I/O pack booting with a different configuration and the Auto-Reconfiguration feature is enabled, a reconfiguration file is automatically downloaded from the controller to the I/O pack. The bootload, baseload, firmware, and parameters are all reconfigured.

Unless it already has the latest version, each I/O pack is updated with the current configuration that matches the configuration used by the controller.

Analog Input Hardware

For all ten input channels, the PAIC accepts input voltage signals from the terminal board. An analog multiplexer block, several gain and scaling options, and a 16-bit analog-to-digital converter comprise the analog input section (DAC).

Depending on the input configuration, the inputs can be configured as 5 V or 10 V scale signals. When configured for current inputs, the terminal board includes a 250 burden resistor that produces a 5 V signal at 20 mA.

Analog Output Hardware

The PAIC has two 0-20 mA analog outputs that can operate at 18 V compliance in simplex or TMR mode. A 14-bit DAC sends a current reference to the PAIC’s current regulator loop, which detects current in both the PAIC pack and the terminal board.

Each analog output circuit also includes a normally open mechanical relay for enabling or disabling output operation. The relay is used in a TMR system to remove a failed output, allowing the remaining two PAICs to create the correct output without interference from the failed circuit.

When the suicide relay is deactivated, the output opens through the relay, short-circuiting the PAIC’s analog output from the terminal board’s customer load.

IS220PAICH1B Characteristics

Number of channels

12 channels per terminal board (10 AI, 2 AO)

Input span

1 – 5 V dc, ±5 V dc, ±10 V dc, or 0-20 mA (Inputs 1-8)

0-20 mA or ±1 mA (Inputs 9-10)

Input converter resolution

16-bit analog-to-digital converter

Scan time

Normal scan 5 ms (200 Hz). Note that maximum controller frame rate is 100 Hz

Power consumption

5.3 W typical, 6.2 W worst case

Compressor stall detection

Detection and relay operation within 30 seconds

Frequently Asked Questions

What is IS220PAICH1B?

IS220PAICH1B is a GE Analog I/O pack from the Mark VIe series

What is the typical Power consumption of the component?

5.3 W is the typical Power consumption.

What is the function of the board?

The PAIC pack serves as the electrical interface between one or two I/O Ethernet networks and an analog input terminal board

Specification:

Product Number: IS2020JPDBG01

Manufacturer: General Electric

Series: Mark VIe

Product Type: Power Distribution Board

Number of Input Channels: 24 Relay Channels

Number of Relay Channels: 12

Trip Solenoid Rating: 125 VDC

Range: -8 mV to +45 mV

Supply voltage: 28 VDC

Voltage range: 18 – 32 VDC

Mounting: DIN rail mount

Technology: Surface mount

Operating temperature: 40 to 70°C

Dimensions: 168 x 150 x 55 mm

Maintenance: 3-7 days

Availability: In stock

Country of Origin: USA

Manual: GEH-6721L

Functional Description:

The IS2020JPDBG01 is a power distribution board manufactured and designed by General www.abb-drive.com 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.

Operation:

The terminal block on the right side of the JPDB module has two AC power supplies connected to it. Below the IS200JPDB board, the AC power is directed to the AC line filter assembly.

The J1 connector on the JPDB circuit board is connected to the filter assembly via the wire harness.

The circuit board for the IS2020JPDBG01 module is the IS200JPDBH1A. since J1 is connected directly to the output branch circuit, this board is not used for AC power selector connections.

The IS200JPDBH2A board is used by the IS2020JPDBG02 module. This board requires an AC power selector.

The JSS1 connector is mounted on one of the boards.JSS1 receives externally filtered AC power from connector J1. To feed the power supply, the branch circuit outputs, and the source selector outputs are returned to JSS1.

The two DACA power conversion modules are powered by JAF1. which feeds power directly from input connector J1 to the adjacent optional JPDF board.

For systems utilizing 125 V DC batteries, the DACA modules are used as an AC backup power supply that converts AC power to 125 V DC power.

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IS200TBCIH1C Contact Input Terminal Block

The IS200TBCIH1C is an important part of the GE Speedtronic MKVI gas turbine control system and is used as an analog output terminal board.

It helps to generate and distribute the analog output signals that are critical for monitoring and controlling the various devices in the turbine system.

The board is equipped with two long green terminals, each of which can accommodate up to 24 terminals, ensuring efficient connections.

Features such as noise and surge suppression, current loading capability and simplified hardware configuration make it an integral part of the precise control and management of turbine operations.

Specification

Product Type: Terminal Block

Manufacturer: General Electric

Series: MKVI Series

Description: Analog Output Terminal Block

Terminals: Two long green blocks with up to 24 terminals per block

Connections: 6 jack connector ports with 37 female connector points per port

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 www.abb-drive.com 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.

Vibration Terminal Board IS200TVIBH2B General Electric’s Mark VIe series, www.abb-drive.com which interfaces with VVIB boards, must maintain the same functionality. This board can be connected to up to three VVIB boards in the same series.

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

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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 www.abb-drive.com 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.

Diagnostics

Three LEDs at the top of the VSVO front panel display status data. The regular RUN status is flashing green, while FAIL is normally lit in red. The third LED is STATUS, which is normally off, but will flash a constant orange color if the board has an alarm condition. The following diagnostic tests are included:

Output servo current is too high or unresponsive, causing a fault.

The regulator feedback (LVDT) signal has exceeded its limits. When a problem occurs, remove the bad sensor from the associated regulator from the feedback calculation and use a good sensor.

Servo suicide. This can cause a defect.

The A/D converter calibration voltage is out of range and is being used as the default.

The excitation voltage for the LVDT is out of range. A defect was created.

The difference between the input signal and the selected value exceeds the TMR differential limit. This causes a fault to be generated indicating a problem with this sensor input.

If any of the above signals become abnormal, the composite diagnostic alarm L#DIAG VSVO is triggered This toolbox contains information about the individual diagnostics. If the individual diagnostic signals return to normal, they can be latched and reset along with the RESET DIA signal.

The terminal board connectors JR1. JS1. and JT1 each have their own ID device that is queried by the I/O board.The ID device is a read-only chip that contains the serial number of the terminal board, the board type, the revision number, and the plug location. When VSVO reads the chip and detects a mismatch, a hardware incompatibility fault is generated.

Digital Servo Regulators

Digital Servo Regulator n = 1-4 divides the servo regulator into the software and hardware portions of the control loop. The user can select servo feedback from the LVDT and pulse rate inputs.

The LVDT input is a 3.2KHz sinusoidal signal whose amplitude is proportional to the position of the electromechanical valve controlled by the servo output. The pulse rate input is a TTL-type signal or some other periodic signal that activates the comparator input.The FPGA on the VSVO counts the comparator output transitions and converts them to flow. For LVDT feedback. the LVDT1 – 12 is scaled and adjusted in the position feedback function of the digital regulator or can be independently adjusted by a separate monitoring function. If an asterisk appears after the block name, it indicates that a more detailed graphic exists to better define the block function.

All VSVO signal space I/O is labeled si for system inputs, which means that the controller reads signal space variables from the servo card, or for system outputs, which means that the controller writes signal space variables to the servo card. The italicized text is defined as a configuration parameter that can be edited by the Toolbox to redefine the operation of the VSVO. Variable names are internal variables that are not visible to the user using the Toolbox.

Servo Automation

Servo Suicide compares the absolute value of the filtered servo current error to the Sui Margin configuration parameter value. This detector determines if the hardware servo current regulator is losing current control. If the current feedback does not match the current command, a diagnostic is generated and the servo current output is disabled (disabled and placed in a safe state).

1 Pulse Rate /2 Pulse Rate Max

The digital servo regulator is set up as a flow controller.1 The feedback to the PulseRate version of the flow regulator is a pulsed signal whose frequency is proportional to the flow rate of the liquid fuel.1 PulseRate is a pulse signal whose frequency is proportional to the flow rate of the liquid fuel.

In the dual input example, the larger pulse rate frequency is selected as the feedback to the flow regulator. The system limit function is used to monitor each pulse rate input and is enabled via the SysLimxEnabl configuration parameter. It can latch the signal space limiting flags SysLimxPR1 and/or SysLimxPR2 if desired. the digital servo regulator is set up as a flow controller.1 The feedback for the PulseRate version of the flow regulator is a pulsed signal whose frequency is proportional to the flow rate of the liquid fuel.

In the dual-input example, the larger pulse rate frequency is selected as the feedback to the flow regulator. The system limit function is used to monitor each pulse rate input and is enabled via the SysLimxEnabl configuration parameter. It can latch the signal space limiting flags SysLimxPR1 and/or SysLimxPR2 if desired.

Specification:

Product Number: IS200TSVOH1BAA

Manufacturer: General Electric

Series: Mark VIe

Product Type: Servo I/O Terminal Block

Number of Inputs: 6 LVDT

Number of outputs: 2

Supply voltage: 24 V DC

Analog output current: 0-20 mA

Excitation voltage: 24 V dc

Maximum lead resistance: 15 Ω

Analog output current: 0-20 mA

Operating temperature: 30 to 50 °C

Dimensions: 17.8 cm H x 33.02 cm

Frequency: 50 or 60 Hz

Technology: Surface mount

Weight: 2 lbs

Country of origin: USA

Manual: GEH-6421

Functional Description:

The IS200TSVOH1BAA is a servo I/O terminal board manufactured and designed by General Electric as part of the Mark VIe series used in GE’s distributed turbine control systems. The servo input/output (TSVO) terminal block is connected to two electrohydraulic servo valves that actuate steam/fuel valves. The valve positions are measured using LVDTs. Two cables are connected to the VSVO using the J5 plug on the front of the VSVO and the J3 or J4 connectors on the VME rack. the TSVO provides a simplex signal through the JR1 connector and fans out the TMR signal to the JR1. JS1 and JT1 connectors. Plugs JD1 or JD2 are used for external tripping of www.abb-drive.com the protection module.

Installation:

Connect the sensor and servo valve wires directly to the two I/O terminals on the terminal block as shown in Figure Servo Terminal Block Wiring. Each module is secured with two screws and has 24 terminals that accept wiring up to #12 AWG. The shield terminal strip connected to chassis ground is immediately to the left of each terminal. Connect the external trip wires to JD1 or JD2. Connect the J5 connector to the front of the VSVO board in racks R, S, and T. Connect the J5 connector to the front of the VSVO board in racks R, S and T. Connect the J1 connector to the VME rack underneath the VSVO in racks R, S, and T.

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.

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