GE IS200TSVCH1A IS200TSVCH1ADC Servo I/O Terminal Board

The GE IS200TSVCH1A IS200TSVCH1ADC Servo Input/Output Terminal Board interfaces hydraulic servo valves with position feedback sensors. You will find this board essential for precise turbine valve control. Its built-in excitation source powers LVDT and RVDT position sensors directly.

Dimensions, Weight, and Mechanical Layout

This servo I/O terminal board measures 20.8 cm in length and 15.5 cm in width. Its height reaches 4.0 cm including all terminal blocks. The total weight stands at 0.62 kilograms for heavy-duty DIN-rail mounting. A four-layer PCB minimizes noise coupling on sensitive feedback circuits.

Servo Interfaces and Component Count

The GE IS200TSVCH1A IS200TSVCH1ADC Servo Input/Output Terminal Board supports four complete servo valve channels. Each channel provides one valve drive output and two LVDT feedback inputs. You also receive four 5V excitation outputs for position sensors. In total, this board contains 167 individual electronic components. These include 16 terminal blocks, 8 differential amplifiers, and 96 precision resistors.

Signal Conditioning and Power Features

Each servo channel includes a differential amplifier for LVDT signal conditioning. The board also provides adjustable gain potentiometers for each feedback input. A 3.3V supercapacitor provides onboard energy storage for 36 hours. This backup retains calibration settings during power interruptions. The board draws 4.8 watts from a nominal 24V DC supply.

Environmental Limits and Wiring Specifications

Therefore, the operating temperature ranges from -25°C to +70°C. Storage temperatures extend from -40°C to +85°C without degradation. Each screw terminal accepts 16 to 24 AWG shielded instrument wire. Maximum terminal torque rating reaches 0.45 Nm for reliable connections.

Below table summarizes all key technical parameters:

Parameter	Value
Manufacturer	General Electric
Series	Mark VI IS200
Full Product Name	GE IS200TSVCH1A IS200TSVCH1ADC Servo Input/Output Terminal Board
Model Numbers	IS200TSVCH1A, IS200TSVCH1ADC
Length	20.8 cm
Width	15.5 cm
Height	4.0 cm
Weight	0.62 kg
PCB Layers	4
Mounting Type	Heavy-duty DIN-rail
Complete Servo Channels	4
Valve Drive Outputs	4 (one per channel)
LVDT Feedback Inputs	8 (two per channel)
Excitation Outputs	4 (5V DC each)
Total Components	167
Terminal Blocks	16
Differential Amplifiers	8
Precision Resistors	96
Onboard Energy Storage	3.3V supercapacitor, 36-hour backup
Power Consumption	4.8 W at 24V DC
Inrush Current	≤ 2.2 A
Gain Adjustment	Potentiometer per feedback input
Excitation Current Capacity	50 mA per output
Wire Gauge Range	16 to 24 AWG
Terminal Torque	0.45 Nm max
Operating Temperature	-25°C to +70°C
Storage Temperature	-40°C to +85°C

Connectors, Cabling, and Additional Features

Two 50-pin ribbon cable headers connect to the servo control board. A single ground terminal bar provides earth connection for cable shields. For similar static trip system servo termination, see the RMS-TSG-TZ-C model from the same manufacturer. However, this servo I/O board specializes in valve position control exclusively. Mean time between failures (MTBF) exceeds 190,000 hours in continuous operation.