GE IS200TSVCH2A IS200TSVCH2AAA | Servo Terminal Board

Precision Signal Termination for Turbine Servo Valves

The GE IS200TSVCH2A IS200TSVCH2AAA terminates all servo valve control signals in one place. This terminal board belongs to the Mark VI series from General Electric. It interfaces directly with electro-hydraulic servo valves. Therefore, it enables precise steam turbine governor control.

Physical Dimensions and Mounting Specifications

This servo board measures 20 cm in width, 15 cm in height, and 3.5 cm in depth. The GE IS200TSVCH2A IS200TSVCH2AAA weighs approximately 0.46 kg, which supports stable DIN rail mounting. Its compact design fits into standard GE terminal panels. Consequently, you can install it without any cabinet modifications.

Connector Layout and Component Configuration

The GE IS200TSVCH2A IS200TSVCH2AAA features two 34-pin ribbon cable headers for rack interface. It also provides four 5-pin screw terminal blocks for servo valve wiring. This board contains eight operational amplifiers for signal conditioning. Additionally, it includes six energy storage capacitors for stable servo supply.

Technical Parameter	Specification
Full Model Name	GE IS200TSVCH2A IS200TSVCH2AAA
Manufacturer	General Electric (GE)
Series	Mark VI / Speedtronic
Product Category	Servo Terminal Board
Weight	0.46 kg (1.01 lbs)
Dimensions (W x H x D)	200 mm x 150 mm x 35 mm
Ribbon Cable Headers	2 x 34-pin
Servo Valve Terminal Blocks	4 x 5-pin (screw type)
Operational Amplifiers	8 units
Energy Storage Capacitors	6 units (470 µF each)
Total Capacitance	2,820 µF
Servo Output Current	±100 mA per channel
Output Voltage Range	–10 V to +10 V
Number of Servo Channels	4 independent channels
Operating Temperature	–20°C to +65°C

Energy Storage and Signal Conditioning Performance

The GE IS200TSVCH2A IS200TSVCH2AAA stores significant energy for servo loop stability. Its six capacitors provide 2,820 µF of total capacitance. This storage filters out supply noise from the valve drivers. Furthermore, each operational amplifier provides adjustable gain for different valve sensitivities.

Role Within the Mark VI Speedtronic System

You will typically find the GE IS200TSVCH2A IS200TSVCH2AAA mounted near the turbine hydraulic panel. It connects to the main rack via two shielded ribbon cables. Moreover, this board supports both single and dual coil servo valves. Its four channels control up to four independent servo valves for steam admission.

Installation and Servo Wiring Guidelines

Use the GE IS200TSVCH2A IS200TSVCH2AAA as a direct replacement for older TSVC revisions. Always verify the valve coil resistance before connecting any wires. This terminal board requires an external ±15 VDC supply for amplifier operation. It needs no configuration jumpers or special tools. Simply secure the board with four mounting screws and connect your shielded servo cables to the 5-pin blocks.