Description

 

Product Description

IS200VTCCH1C is a board component manufactured by GE as part of the Mark VI system. MKVI is part of the Speedtronic gas and steam turbine management series, which began with the Mark I in the 1960s and continued through Mark VI and Mark VIe for decades. The Mark VI has a central control module connected to the operator interface. This operator interface allows end users to access alarm status and system data using an interface built on a Windows platform PC.

As a thermocouple input board, IS200VTCCH1C receives 24 thermocouple inputs through terminal boards such as TBTC and DTTC terminal boards. IS200VTCCH1C only supports thermocouples of types T, S, K, J, and E. It also supports mV inputs ranging from -8mV to+45mV. This board does not support thermocouples of type B, N, or R, or mV inputs of -20mV to -9mV or+46mV to+95mV; If these ranges are required, a VTCCH2 board is required.

The IS200VTCCH1C is constructed with two backplanes and four other board connectors. These other connectors are made of conductive points or traces. There are hundreds of capacitors and resistors on this board; These are all numbered with reference indicators. It also has diodes, inductance coils or magnetic beads, and TP test points. It also has many integrated circuits, including dual port SRAM, FPGA, CMOS static RAM, and digital signal processor. The front panel is equipped with three LED components, labeled as running (green LED), failed (red LED), and status (orange LED).

 

IS200VTCCH1C is a Mark VI series thermocouple processor board developed by GE. The thermocouple processor board VTCC accepts 24 inputs of E, J, K, S, or T type thermocouples. These inputs are connected to two terminal blocks on the TBTC terminal board. A cable with a molded connector connects the terminal board to the VME rack, which is equipped with a VTCC thermocouple processor board. TBTC can provide control in simplex (TBTCH1C) and three module redundancy (TMR) modes (TBTCHIB).

Installation of IS200VTCCH1C

Close the VME processor rack.

Insert the VTCC board and manually push the top and bottom control levers to secure the edge connectors of the board.

Tighten the self tapping screws at the top and bottom of the front panel.

 

The cable connection of the TBTC terminal board is carried out through the J3 and J4 connectors on the upper and lower parts of the VME rack. To secure the cables, these are locking connectors. Start the VME rack and view the diagnostic indicators on the front panel.

operation

The 24 thermocouple inputs of TBTC can be grounded or ungrounded. Their maximum bidirectional cable resistance is 450 Ω and can be installed 300 meters (984 feet) away from the turbine control cabinet. There are high-frequency noise suppression devices and two cold end reference devices on the terminal board. VTCC performs software linearization for each thermocouple type. Thermocouples found to exceed hardware limits will be removed from the scanned input to avoid adverse effects on other input channels.

 

Cold end

If both cold end devices are within their configurable limits, the average of the two is used to compensate for the cold end. If only one cold end device falls within the configurable limit range, it will be used for compensation. If both cold end devices do not meet the configurable limit, the default value is used.

Automatically calibrate thermocouples and cold junction inputs using filtered calibration reference voltage and zero voltage. Each VTCC uses two cold end references, one for connector J3 and one for connector J4.

Each reference can be remote (from VME bus) or local. Then, all references are considered as sensor inputs (such as average values, configured limitations). Two types of references (local and remote) can be mixed. The cold end signal enters the signal space and can be monitored.

Usually, the average of the two is used. Set acceptable limits, and if the cold end exceeds the limit, a logic signal will be generated. The 1 degree Fahrenheit error in the cold end compensation will result in a 1 degree Fahrenheit error in the TC reading.

IS200VTCCH1C characteristics

Number of channels

Each terminal board and I/O board has 24 channels.

Thermocouple type

E. J, K, S, T thermocouples and mV inputs

span

-8 mV to+45 mV

A/D converter sampling type

A/D converter with a resolution of 16 bits instead of 14 bits

CJ compensation

Measure the temperature of the reference end twice on each TC terminal board (optional for removing CJ).

There are six cold end reference points on the TMR board.

Cold end temperature accuracy

Cold end accuracy 2 ° F

IS200VTCCH1C Features

As a thermocouple input board, this component receives 24 thermocouple inputs through terminal boards such as TBTC and DTTC. This board only accepts T, S, K, J, and E thermocouples.

MKVI is part of the Speedtronic gas and steam turbine management series, which began with Mark I in the 1960s and has been extended for decades through Mark VI and Mark VIe. The Mark VI is equipped with a central control module connected to the operator interface. This operator interface allows end users to view alarm status and system data through a Windows platform PC based interface.

As a thermocouple input board, this component receives 24 thermocouple inputs through terminal boards such as TBTC and DTTC. This board only accepts T, S, K, J, and E thermocouples. It also accepts mV inputs ranging from -8mV to+45mV.

This board does not support B, N, or R type thermocouples, nor does it support mV input ranges of -20mV to -9mV or+46mV to+95mV; If these ranges are required, a VTCCH2 board is required.

The board has two backplanes and four additional board connectors. Other connectors are composed of conductive points or traces.

There are hundreds of capacitors and resistors on the board, which have been numbered and have reference indicators. It also includes diodes, inductance coils or magnetic beads, and TP test points.

It also includes a large number of integrated circuits, such as dual port SRAM, FPGA, CMOS static RAM, and digital signal processors. The front panel contains three LED components, designated as “Run” (green LED), “Failed” (red LED), and “Status” (orange LED).

Frequently asked questions

What is IS200VTCCH1C?

IS200VTCCH1C is a Mark VI series thermocouple card developed by GE.

What is the scanning time for the component?

For 60 Hz operation, all inputs are sampled at a rate of 120 times per second; For 50 Hz operation, 100 times per second

What is the maximum consistency error of the component?

The maximum consistency software error is 0.25 degrees Fahrenheit

What is the temperature accuracy of the module’s cold end?

Cold end temperature accuracy is 2 degrees Fahrenheit

What is the common mode suppression of communication?

For balanced impedance input, AC common mode suppression is 110 dB at 50-60 Hz

How to obtain IS200VTCCH1C?

Xiamen Xiongba Industry provides IS200VTCCH1C and other turbine control products. Contact Industrial Control Sales Consultant: Carrey

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IS200VPROH2B GE