Brand: GE Description: Servo Input/Output terminal board Condition: Brand New Certificate: COO TEST REPORT WARRANTY LETTER Warranty: 1 year Inventory Qty: 7 Payment Term: T/T Shipping Port: Xiamen The IS200TSVCH1ACB Servo Input/Output terminal board interfaces to two electro-hydraulic servo valves that actuate the steam/fuel valves. Valve position is measured with linear variable differential transformers (LVDT).
|
Manufacture |
GE |
|
Model Number |
IS200TSVCH1ACB |
|
Number of outputs |
2 trip contacts |
|
Catalog |
Mark VIe |
|
Voltage |
7.00 ±0.14 V rms |
|
HS CODE |
8538909100 |
| Size |
33.02 cm high x 17.8 cm wide (13 in x 7 in) |
|
Temperature |
Operating: -30 to 65ºC (-22 to +149 ºF) |
|
Weight |
2kg |
Product Overview
The IS200TSVCH1ACB Servo Input/Output terminal board is designed specially for the PSVO I/O pack and the WSVO servo driver, and will not work with the VSVO processor. The terminal board supports simplex, dual, and TMR control. Three 28 V dc supplies come in through plug J28. Plugs JD1 or JD2 are for an external trip from the protection module.
Installation
Sensors and servo valves are wired directly to two I/O terminal blocks. Each block is held down with two screws and has 24 terminals accepting up to #12 AWG wiring. A shield terminal strip attached to chassis ground is located immediately to the left of each terminal block. External trip wiring is plugged into either JD1 or JD2.
Each servo output can have three coils in TMR configuration. The size of each coil current is jumper selected using JP1, 3, 5 for Servo 1, and JP2, 4, 6 for servo 2.
Three 28 V dc power supplies for the R, S, and T board functions are connected to J28. Two non-isolated LVDT excitations sources for S and T are wired to terminal block TB3 and TB4.
The IS200TSVCH1ACB servo terminal board provides two channels consisting of bi-directional servo current outputs, LVDT position feedback, LVDT excitation, and pulse rate flows inputs. It provides excitation for, and accepts inputs from, up to eight LVDT valve position inputs. There is a choice of one, two, three, or four LVDTs for each servo control loop. The two pulse rate inputs are used for gas turbine fuel flow measurement.
Each servo output is equipped with an individual suicide relay under firmware control that shorts the PSVO output signal to signal common when de-energized, and recovers to nominal limits after a manual reset command is issued. Diagnostics monitor the output status of each servo voltage, current, and suicide relay.
Each of the servo output channels can drive either one or two-coil servos in simplexapplications, or two or three-coil servos in TMR applications. The two-coil TMR applications are for 200# oil gear systems where each of two control pack drive one coil each, and the third control pack has no servo coil interface. Servo cable lengths up to 300 m (984 ft) are supported with a maximum two-way cable resistance of 15 Ω. Since there are many types of servo coils, a variety of bi-directional current sources are jumper selectable.
The primary and emergency overspeed systems will trip the hydraulic solenoids independent of this circuit
A trip override relay K1 is provided on the terminal board, which is driven from the <P> protection pack. If an emergency overspeed condition is detected in the protection module, the K1 relay will energize and disconnect the servo output and apply a bias to drive the control valve closed. This is only used on simplex applications to protect against the servo amplifier failing high, and is functional only with respect to the servo coils driven from <R>.
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