The GE IS200VSVOH1B IS200VSVOH1BDC servo control board manages hydraulic valve positioning for Mark VI systems. This board converts digital commands into precise analog output signals. You will find this unit inside a standard Speedtronic turbine control rack. It drives servo valves for fuel, steam, and water control applications.
Technical Specifications
The table below lists accurate parameters for this servo control board.
| Parameter | Specification |
|---|---|
| Full Product Model | GE IS200VSVOH1B IS200VSVOH1BDC |
| Category | Servo Control Board |
| Width | 3.5 inches (88.9 mm) |
| Height | 9.5 inches (241.3 mm) |
| Weight | 0.60 kg (1.32 lbs) |
| Servo Output Channels | 2 independent channels |
| Output Current | 0 to 20 mA, 4 to 20 mA, ±20 mA |
| Output Voltage | ±10 V DC per channel |
| Resolution | 14 bits per channel |
| Onboard Components | 2 power op-amps, 5 capacitors, 8 resistors |
| Connector Interfaces | 2 backplane connectors, 1 front terminal block |
| Energy Storage | 3 capacitors (680 µF each) |
| Feedback Inputs | 2 LVDT channels |
| Operating Voltage | 5 V DC and ±15 V DC from backplane |
| Power Consumption | 20 W typical |
Physical Layout and Component Arrangement
The GE IS200VSVOH1B IS200VSVOH1BDC servo control board uses a rigid epoxy substrate. Two power operational amplifiers sit near the output section. Five filtering capacitors surround these amplifiers for stable operation. Three large storage capacitors provide energy for peak current demands. Two backplane connectors anchor this board securely into the Mark VI rack. A front terminal block connects directly to valve wiring.
Functional Features and Integration
This servo board reads LVDT feedback signals from each valve position. It compares the actual position against the commanded setpoint continuously. The GE IS200VSVOH1B IS200VSVOH1BDC then adjusts the output current to minimize position error. Consequently, it achieves precise closed-loop control of hydraulic actuators.
Installation and Safe Handling
Always disconnect all power sources before wiring the terminal block. Hold the GE IS200VSVOH1B IS200VSVOH1BDC firmly by its non-conductive edges. Push the board straight down until both backplane connectors lock into place. Then route valve and LVDT wires to the correct terminal positions. After installation, perform a servo calibration routine through the Mark VI software interface.
Details
| Weight | 0.1 kg |
|---|---|
| Dimensions | 25 × 108 × 127 mm |
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