GE IS200DSVOH2B | Mark VIe Servo Output Module In Stock

Description

Product Introduction

The GE IS200DSVOH2B is a Mark VIe series servo output module that provides 2 channels of high-precision analog control signals for electro-hydraulic actuators and servo valves in gas and steam turbine control applications. This I/O pack is specifically designed for applications requiring fast, accurate positioning, such as steam valve control, fuel control, and generator excitation systems. It provides the precision and speed needed for closed-loop servo control.

The H2B suffix denotes a 2-channel variant with specific hardware configuration. In our field experience, this module is used in applications where only two servo outputs are required, such as single-actuator control or redundant configurations where two modules provide backup. The B hardware revision includes specific filtering and performance characteristics optimized for particular OEM requirements. For facilities with electro-hydraulic control systems requiring dual-channel servo control, this module provides an efficient solution.

Key Technical Specifications

Key Selling Points & Differentiators

• 2-channel high-precision servo output – provides fast, accurate analog control for electro-hydraulic servo valves and actuators. Reduces cost and rack space when only two channels are needed.
• 16-bit resolution with ±0.05% accuracy – delivers exceptional precision for demanding servo control applications. Ensures smooth, stable actuator positioning.
• 1 kHz control bandwidth – supports fast-responding servo systems. Essential for fuel control and steam valve applications requiring rapid response.
• Configurable output types – each channel can be set for ±10 V or 4-20 mA output. Supports both voltage and current-actuated servo valves.
• Rigorous 48-hour burn-in – each unit runs with both channels driven through dynamic control loops while monitoring for accuracy and stability.
• 3-year warranty on hardware – backed by our in-house repair depot with average 48-hour turnaround. Dedicated DSVO swap-pool ensures rapid replacement.

Frequently Asked Questions (FAQ)

Can I hot-swap this IS200DSVOH2B into a running Mark VIe system?

We strongly advise against it. The DSVOH2B has shown unpredictable behavior when inserted into a powered backplane, and any glitch on servo outputs can cause actuator movement. Schedule a controlled outage, de-energize the rack, and swap it during planned maintenance. This is especially critical for modules involved in fuel and steam valve control.

What is the difference between the IS200DSVOH1A and the IS200DSVOH2B?

The DSVOH1A provides 4 channels of servo output. The DSVOH2B provides 2 channels with a specific hardware configuration. The H2B is used in applications where only two servo outputs are required, offering a more cost-effective solution.

What is the difference between the IS200DSVOH1ABA and the IS200DSVOH2B?

The DSVOH1ABA is the premium 4-channel variant with enhanced diagnostics and ±0.04% accuracy. The DSVOH2B is the standard 2-channel variant with ±0.05% accuracy and specific hardware configuration.

What types of actuators can this module drive?

The DSVOH2B can drive electro-hydraulic servo valves, proportional valves, and hydraulic actuators that accept ±10 V or 4-20 mA command signals. It is typically used for steam valve position control, fuel control valves, and generator excitation systems.

Does this module support redundancy?

The DSVOH2B can be used in redundant configurations. In dual-redundant servo control systems, two DSVO modules with separate field wiring provide backup. This is common for critical steam valve control in large turbines.

How do I verify this is a genuine GE module?

We source exclusively from GE-authorized liquidations. Our verification includes OEM packaging inspection, serial number cross-check against GE records, and PCB inspection for GE-specific markings. We test both channels for accuracy and bandwidth. We provide PCB photographs upon request.

Will I lose any configuration data when I replace the module?

Servo modules have calibration data stored in EEPROM. You will need to recalibrate the outputs after replacement. Plan for 2-3 hours of commissioning time. We can pre-load calibration constants if you send us your old module’s data file from ToolboxST.

What is the expected lifespan of this unit?

We see MTBF around 130,000 hours for the DSVOH2B. The high-precision components are robust. We have seen these units exceed 15 years in field service.

What happens if the module fails within the warranty period?

We cross-ship a tested replacement from our dedicated DSVO swap-pool the same business day. You return the failed unit within 15 days. Our repair depot has an average 48-hour turnaround. No restocking fees. You receive a DSVOH2B replacement.

Which termination board should I use with this module?

The IS200DSVOH2B mates with GE’s TS200DSV1 or TS200DSV2 termination boards. Check ribbon cable orientation; pin 1 has a red stripe. We include a wiring diagram PDF with every order.

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