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IS200TSVCH2ADC - Servo Input/Output Terminal Board is available in stock which ships the same day.
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TECHNICAL SPECIFICATIONS:
Part Number: IS200TSVCH2ADC
Manufacturer: General Electric (GE)
Series: Mark VIe
Product Type: Servo Input/Output Terminal Board
Number of Inputs: 8 LVDT windings
Number of Outputs: 2 servo valves
Power Supply Voltage: 24 V DC
Power Supply Current: 5 A DC
LVDT Excitation Output: 3.2 ± 0.2 kHz
Pulse Rate Input Sensitivity: 12 kHz requires 1486 mV p-p
Operating Temperature: -30°C to +65°C
Storage Temperature: -40°C to +85°C
Size: 33.02 cm high × 17.8 cm wide
Active PR Pickup Signal: 5 to 27 V p-p into 60 Ω
Relative Humidity: 5% to 95%, non-condensing
Availability: In Stock
Repair Lead Time: 3–7 Days
Country of Origin: United States
Manual Reference: GEH-6721, Volume III
The IS200TSVCH2ADC is a Servo Input/Output Terminal Board designed and manufactured by General Electric as part of the Mark VIe Series used in Distributed turbine control systems. The Servo Input/Output (TSVC) 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). TSVC is designed specifically for the PSVO I/O pack and the WSVO servo driver. The terminal board supports simplex and TMR configurations. 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 excitation sources for S and T are wired to terminal block TB3 and TB4.
The three J1 connectors for the PSVO I/O packs are R, S, and T. These plug into the DC-37 pin connector with latching fasteners, and bolt to a side bracket holding the I/O packs in place. The three J2 connectors for the WSVO servo drivers are R, S, and T. Each WSVO is held down with four screws. The WSVO servo driver and PSVO I/O pack are ordered as a set and should be replaced if diagnostics indicate a servo problem. The PSVO I/O pack and WSVO driver can be replaced with the unit running by removing power from the failed channel with the corresponding manual enable switch, SW1, SW2, or SW3. Power to each channel is indicated with LEDs on the board and LEDs on each power switch.
OPERATION:
The TSVCH2ADC servo terminal board provides two channels consisting of bi-directional servo current outputs, LVDT position feedback, LVDT excitation, and pulse rate flow 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 liquid fuel flow feedback 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.
WHY BUY FROM WOC
World of Controls maintains a comprehensive global stock of OEM replacement parts for GE Mark VIe Distributed Control Systems. The TSVCH2ADC is available in UNUSED surplus and professionally REBUILT conditions, covered by complete warranty protection. Each board undergoes rigorous inspection and full channel testing against original manufacturer specifications to verify excitation current accuracy, channel isolation, noise rejection, and signal path continuity prior to shipment. We also provide professional repair, exchange, and technical support services to help minimize plant downtime and ensure smooth operation of your industrial assets. Contact our team to confirm current availability, request a competitive quote, or arrange quick delivery options.
What is the GE IS200TSVCH2ADC?
The GE Servo Input/Output Terminal Board is a Mark VIe component used to interface electro-hydraulic servo valves, LVDT position sensors, and pulse-rate flow inputs within turbine control systems. It supports accurate valve positioning and control in industrial turbine applications.
What should be checked when replacing a servo terminal board?
Before replacement, technicians should verify the exact part number, Mark VIe system configuration, connector arrangement, servo configuration, LVDT wiring, power connections, and applicable GE documentation. Proper configuration is important to ensure compatibility with the existing turbine control system.
What should be checked when replacing a servo terminal board?
Before replacement, technicians should verify the exact part number, Mark VIe system configuration, connector arrangement, servo configuration, LVDT wiring, power connections, and applicable GE documentation. Proper configuration is important to ensure compatibility with the existing turbine control system.
Which I/O pack and servo driver are compatible with this board?
The TSVC terminal board is designed for use with the PSVO I/O pack and WSVO servo driver. These components work together to provide servo control and monitoring within the Mark VIe turbine control system.
