GE IS200VSVOH1B IS200VSVOH1BDC | Servo Control Board

The GE IS200VSVOH1B board performs closed-loop servo control for hydraulic valves. This control module also carries the revision code IS200VSVOH1BDC . It positions steam and fuel valves with high precision. The board executes PID algorithms for fast and stable response.

Technical Specifications of GE IS200VSVOH1B IS200VSVOH1BDC

Parameter	Specification
Manufacturer	General Electric (GE)
Series	Mark VI Speedtronic
Full Model	GE IS200VSVOH1B (IS200VSVOH1BDC)
Board Dimensions	26.04 cm x 24.13 cm x 2.54 cm
Weight	Approximately 0.80 kg
Control Channels	4 (Independent)
Output Signal	±10 V or 4-20 mA
Feedback Inputs	4 LVDT channels (±10 V)
Control Accuracy	±0.1% of full scale
Supply Voltage	24 V DC (Nominal)
Power Dissipation	20 W (Maximum)

Component Count and Board Construction

This GE IS200VSVOH1B board contains over 280 discrete components on its surface. You will find multiple high-speed DSPs for PID calculations. Furthermore, the board includes precision analog-to-digital converters for feedback. The assembly also features relay outputs for valve enable signals.

Interfaces, Energy Storage, and Signal Processing

The IS200VSVOH1BDC revision provides screw terminals for valve and LVDT wiring. Moreover, the board uses capacitors for analog filter networks. These capacitors store minimal energy but ensure signal stability. Each channel includes a dedicated PWM driver for proportional valves.

Functional Logic and Application Context

This Mark VI board compares valve position demand against LVDT feedback continuously. It then calculates an error signal for the PID controller. The GE IS200VSVOH1B adjusts its output to minimize this positioning error. Additionally, it performs dither injection to reduce valve stiction. Consequently, the board achieves precise control of steam admission valves.

PID Configuration and Channel Independence

You can configure each control channel with independent PID parameters. The board supports proportional, integral, and derivative gains separately for each loop. Furthermore, the IS200VSVOH1BDC includes feedforward compensation for faster response. This feedforward path anticipates load changes before they affect position. The board also features output limiting to protect valve hardware.

Installation and Environmental Limits

You must isolate the 24 V DC supply before removing this servo board. The operating temperature range spans -30°C to +65°C . Furthermore, the board withstands 5 g vibration without control instability. Always verify the IS200VSVOH1BDC configuration matches your valve characteristics.