GE IS200DSVOH1A | Mark VIe Servo Output Module In Stock

Description

Product Introduction

The GE IS200DSVOH1A is a Mark VIe series servo output module that provides 4 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 H1A revision provides 4 channels of configurable ±10 V or 4-20 mA outputs with 16-bit resolution and ±0.05% accuracy. The module includes a 1 kHz control bandwidth, which supports fast-responding servo systems. In our field experience, the DSVOH1A is the module of choice for critical actuator control where precision and response time are paramount. For facilities with electro-hydraulic control systems, this module provides the high-performance analog outputs needed for stable, precise valve and actuator positioning.

Key Technical Specifications

Key Selling Points & Differentiators

• 4-channel high-precision servo output – provides fast, accurate analog control for electro-hydraulic servo valves and actuators. Critical for stable turbine control.
• 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 all 4 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 IS200DSVOH1A into a running Mark VIe system?

We strongly advise against it. The DSVOH1A 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 DSVOH1A and a standard analog output module like the DAMA series?

The DSVOH1A is specifically designed for servo control applications. It has higher resolution (16-bit vs. 14-bit), better accuracy (±0.05% vs. ±0.1%), and a much faster control bandwidth (1 kHz vs. <10 ms response). The DSVO is for closed-loop servo control; the DAMA is for general-purpose analog output.

What types of actuators can this module drive?

The DSVOH1A 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.

What is the maximum cable length for servo outputs?

For ±10 V outputs, keep cable runs under 100 meters to avoid signal degradation and noise pickup. For 4-20 mA outputs, you can run up to 300 meters. For critical servo applications, we recommend shielded, twisted-pair cable and keeping runs as short as practical.

Does this module support redundancy?

The DSVOH1A 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 all 4 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 120,000 hours for the DSVOH1A. 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 DSVOH1A replacement.

Which termination board should I use with this module?

The IS200DSVOH1A 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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