Description
Note: Many products are not yet listed. Please contact us for more product information. Our supply channels are constantly expanding, and we currently have 20 stable shared supply channels. Please confirm the model, product, price, and all other necessary information with customer service before placing an order. We offer new, refurbished, and used products, and prices are adjusted according to the year of the item you require.
Key Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | IS200VSVOH1B |
| Platform | GE Speedtronic Mark VI / Mark VIe |
| Bus Interface | VMEbus, double-slot VME rack mount |
| Servo Outputs | 4 channels, jumper selectable ±10 V or 4–20 mA |
| Position Feedback | LVDT/RVDT excitation and demodulation, 0–10 kHz carrier |
| Control Loop Update | 10 kHz (100 µs) PID execution |
| Position Accuracy | <0.1% full scale |
| Power Input | +5 V @1.5 A, ±15 V @0.3 A typical |
| Operating Temperature | 0°C to 60°C |
| Isolation Rating | 1500 V channel-to-channel and channel-to-ground |
| Cooling | Convection cooling via chassis airflow |
Product Introduction
GE IS200VSVOH1B is a double-slot VME VSVO servo control board built for Mark VI turbine control cubicles. It sends command signals to electro-hydraulic servo valves and reads LVDT position feedback to close high-speed position loops.
This module handles up to four independent valve control channels. It pairs with TSVO/DSVO terminal boards to separate field wiring, and supports TMR voting for critical turbine safety loops to reduce unplanned trips.
IS200VSVOH1B
IS200VSVOH1B
IS200VSVOH1B
IS200VSVOH1B
IS200VSVOH1B
Application Scenarios & Field Experience
Part 1 (Narrative Paragraph)
Combined-cycle and thermal power plants running legacy Mark VI controls face costly forced outages when servo hardware fails. OEM lead times can stretch many weeks. Direct swap with IS200VSVOH1B preserves existing wiring, control logic and TMR voting architecture without full system rework.
Part 2 (Numbered List)
- Combined Cycle Power Plant: Gas turbine fuel valve and inlet guide vane position regulation.
- Thermal Power Station: Steam turbine main steam valve control, closed-loop LVDT position feedback.
- Pipeline Compressor Station: Anti-surge servo valves and compressor inlet guide vane positioning.
- Offshore Production Platform: Choke valve and engine governor control in Zone 2 rated turbine control cubicles.
Part 3 (Short Field Story)
A combined-cycle unit had unstable fuel valve oscillation traced to a degraded IS200VSVOH1B. The plant had a scheduled outage window of only 3 days. Our bench-tested IS200VSVOH1B arrived on site in 4 business days. Technicians completed card swap, LVDT calibration and loop tuning inside one shift. The turbine held steady load without further valve hunting.
Standard Operating Procedure (SOP) for Quality Control
- Visual & Origin Inspection: Check OEM labeling, PCB traces, connector pins, component solder joints and anti-counterfeit marker checks.
- Live Rig Testing: Bench power-on, VME bus handshake, servo output simulation and LVDT signal demodulation testing across all four channels.
- Firmware Verification: Read and log firmware revision; confirm it matches the target Mark VI system BOM requirements.
- Continuity & Isolation Check: Verify channel isolation and continuity for all signal paths to TSVO or DSVO terminal boards.
- ESD-Safe Packaging: Complete all work inside ESD controlled workstation, place in anti-static shielding and rigid transit case.
Frequently Asked Questions (FAQ)
Q1: Is GE IS200VSVOH1B compatible between Mark VI and Mark VIe systems? A: It works on both Mark VI and Mark VIe platforms, but verify firmware revision and terminal board type before installation. Some Mark VIe configurations require database import to recognize the VSVO card.
Q2: What warranty is included with this GE board? A: We provide a 12-month limited warranty. Warranty covers electronic functional defects. It excludes damage from ESD, overvoltage, hydraulic fluid contamination or incorrect loop tuning.
Q3: How quickly can this GE unit ship after order confirmation? A: Stock is available for immediate shipment. Final transit timeline depends on destination and industrial procurement portal clearance. Confirm outage deadlines before order lock-in.
Q4: What risks come with firmware mismatch after installing ? A: Mismatched firmware can trigger bus faults, incorrect LVDT demodulation, or unstable valve drive. Load the validated firmware revision for your turbine application before enabling hydraulic pressure and bringing the unit online.
Q5: Are there critical installation pitfalls for ? A: Do not hot-swap this board while the turbine control loop remains active. This can create sudden valve movement and unit trip. Place all associated loops in manual, lock out hydraulic pressure and remove rack power before card removal.
