IS200TSVCH1ADC S1CX01H | GE Electric (TMR) servo output module
Product Description
The IS200TSVCH1ADC S1CX01H is a Triple Modular Redundant (TMR) Servo Output Module from GE’s Mark VI Speedtronic series. It provides high-integrity, fault-tolerant control signals to servo valves and proportional valves in turbine systems, converting digital commands into precise analog current outputs (4–20 mA) across three synchronized channels for critical hydraulic/actuation control.
Product Parameters / Specifications:
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Parameter Category
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Specification
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Notes
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Manufacturer
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GE (General Electric)
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Part of GE Industrial Solutions (GE Vernova)
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Series
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Mark VI Speedtronic Turbine Control System
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Compatible with Mark VI
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Module Type
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TMR Servo Valve Control Output Module
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Triple-redundant architecture (3 channels per output)
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Part Number
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IS200TSVCH1ADC S1CX01H
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ADC = Hardware revision, S1CX01H = Firmware/config suffix |
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Primary Function
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Generate redundant 4–20 mA current signals for servo/proportional valves
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Controls fuel/steam valves, actuators, or hydraulic systems
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Output Channels
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6 channels (3 TMR groups × 2 outputs each)
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3 isolated channels per output group (A/B/C)
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Output Signal Type
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4–20 mA current loop (PWM-driven)
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Configurable per channel
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Output Resolution
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16-bit (minimum) per channel
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High-precision digital-to-analog conversion
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Accuracy
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±0.1% of full scale (typical)
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Includes temperature drift compensation
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Output Drive Capability
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Up to 500 Ω load impedance per channel
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Supports long cable runs
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Ripple Current
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< 0.1% peak-to-peak (typical)
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Critical for sensitive servo valves
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Fault Tolerance
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2-out-of-3 (2oo3) voting
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Automatic switch to healthy channels on failure
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Diagnostics
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• Per-channel open/short detection
• TMR mismatch alarms • Hardware fault LEDs |
Real-time health monitoring
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Isolation
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• Channel-to-channel: >500V AC
• Channel-to-logic: 1500V AC RMS |
Reinforced isolation for noise immunity
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Configuration
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Via Mark VI ToolboxST™ software
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Adjusts output range, filtering, fail-safe states
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Communication
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VME bus to Mark VI controller
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Interfaces with
<VPRO> or <TREG> modules |
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Redundancy Support
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Hot-swappable with compatible modules
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Online replacement capability
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Operating Temperature
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-40°C to +70°C
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Industrial-grade ruggedization
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Safety Certification
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Designed for IEC 61508 SIL 2 / SIL 3 (system-level)
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Compliant with functional safety standards
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Series:
Part of GE’s Mark VI Speedtronic family for gas/steam turbine control, designed for mission-critical actuation systems.
Key Features:
- Triple Modular Redundancy (TMR): Three independent circuits per output eliminate single points of failure.
- High-Accuracy Current Output: Precision 4–20 mA signals with minimal ripple for valve stability.
- Fault-Adaptive Operation: Automatic 2oo3 voting isolates faulty channels without interruption.
- Integrated Diagnostics: Real-time monitoring of shorts, opens, and channel mismatches.
- Fail-Safe Modes: Configurable fallback states (e.g., hold last value, predefined safe position).
- Hot-Swap Capability: Replace modules during system operation (redundant pairs required).
- Seismic/Vibration Rated: Built for harsh power plant environments.
- Low-Noise Design: Critical for sensitive servo valve operation.
Function/Role:
Converts digital commands from the Mark VI controller into ultra-reliable analog current signals to position hydraulic actuators, fuel valves, or steam valves. Performs continuous TMR validation to ensure signal integrity.
Purpose/Use:
- Critical Flow/Position Control: Fuel metering valves, inlet guide vanes (IGV), bypass valves.
- Turbine Actuation: Governing control, load management, safety shutoff systems.
- Redundant Hydraulic Control: Emergency trip systems, hydraulic fluid management.
- Process Safety: Prevents overspeed/overpressure by precisely modulating fluid flows.
Application Fields:
- Power Generation:
- Gas turbine fuel control (liquid/gas)
- Steam turbine governor valves
- Combined-cycle plant bypass systems
- Oil & Gas:
- Turbine-driven compressor surge control
- LNG plant cryogenic valve control
- Industrial:
- Cogeneration (CHP) fuel/steam regulation
- Petrochemical process control valves
- Marine Propulsion:
- Naval vessel turbine throttle control
- Aeroderivative Turbines:
- Mobile power units, mechanical drive systems
This module ensures fail-operational control for critical turbine valves, leveraging TMR technology to prevent unplanned shutdowns in GE’s Mark VI control platforms. For proper operation, it typically pairs with the <VPRO> (Servo Valve Interface) module.
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