Description

Not for real photos. All pictures are for reference only.

Product Overview

The IS200VSVOH1BED (VSVO) is a VME-format servo control PCB for GE Speedtronic Mark VI turbine control racks, used for electro-hydraulic valve positioning control. It drives up to four servo valves for fuel, steam, and governor control, while exciting and reading LVDT position feedback to close high-speed positioning loops. It supports simplex and TMR triple-redundant turbine architectures and works together with TSVO / DSVO terminal boards for field signal breakout. This conformal-coated legacy board is critical for gas and steam turbine governing, widely stocked as replacement spare for power plant Mark VI racks.

Technical Specifications

• Brand: GE (Baker Hughes / GE Vernova)
• Model: IS200VSVOH1BED
• Warranty: One Year
• Condition: 100% New & Original
• Input/Output: 4 servo drive channels; LVDT excitation & differential position sensing; VME backplane connector; front ribbon I/O header to TSVO/DSVO
• Operating Temp: -30°C to +70°C
• Communication: Mark VI VME backplane bus
• Control Capacity: 4 electro‑hydraulic servovalves
• Feedback: LVDT position transducer interface
• Redundancy: Compatible with TMR triple modular redundant rack configuration
• Form Factor: Standard VME rack card
• Supply: Powered from Mark VI VME multi‑rail backplane
• Diagnostics: Front status LEDs, internal watchdog, fault flagging to main controller
• Coating: Conformal coating for power plant environments
• Hot Swap: Not hot‑swappable; rack de‑energization required
• Compatible Terminals: TSVO, DSVO terminal assemblies
• Weight: Approx. 1.2 kg
• Origin: USA
• Certifications: CE, IEC turbine control standard
• Lifecycle: Discontinued legacy spare for Mark VI (not Mark VIe)