IS200TTURH1CCC S1DF00Z | GE Electric (TMR) RTD/Thermistor Input Module
Product Description:
The IS200TTURH1CCC S1DF00Z is a Triple Modular Redundant (TMR) RTD/Thermistor Input Module from GE’s Mark VI Speedtronic series. It provides ultra-reliable, fault-tolerant temperature monitoring for critical turbine systems by processing signals from RTDs (Resistance Temperature Detectors) and thermistors across three independent, synchronized channels. Designed for safety-critical applications, it ensures continuous operation even if one channel fails.
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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Part of GE Industrial Solutions (Now part of 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 (predecessor to Mark VIe)
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Module Type
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TMR RTD/Thermistor Analog Input Module
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Triple-redundant architecture (3 independent channels per input)
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Part Number
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IS200TTURH1CCC S1DF00Z
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CCC = Hardware revision, S1DF00Z = Firmware/config suffix |
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Primary Function
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Condition, digitize & redundantly monitor RTD/thermistor temperature signals
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For safety-critical turbine protection
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Input Channels
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12 (4 groups × 3 TMR channels)
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3 isolated channels per input point (A/B/C)
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Input Signal Types
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• 2-wire/3-wire RTDs: Pt100, Pt200, Pt500, Ni120, Cu10
• Thermistors (e.g., 2kΩ, 5kΩ) |
Software-configurable per channel group
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Measurement Resolution
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16-bit (minimum) per channel
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High-precision A/D conversion
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Accuracy
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±0.1% of reading (typical for RTDs)
±0.25°C (typical at 0°C) |
Varies by RTD type/wiring; includes lead resistance compensation
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Excitation Current
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0.5 mA (typical for RTDs)
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Low-current to minimize self-heating errors
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Fault Tolerance
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2-out-of-3 (2oo3) voting
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Continues operation with one failed channel
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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/safety
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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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Configuration
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Via Mark VI ToolboxST™ software
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Configures sensor type, range, filtering, alarms
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Mounting
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VME-style card; installs in Mark VI I/O pack
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DIN rail mounting via carrier
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Backplane Communication
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VME bus to Mark VI controller
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Interfaces with
<CPDB>/<RTPM> modules |
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Redundancy Support
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Hot backup sparing (with compatible modules)
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Minimizes downtime during maintenance
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Operating Temp.
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-40°C to +70°C (industrial grade)
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Safety Certification
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Designed to IEC 61508 SIL 2 / SIL 3 (system-level)
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For functional safety in critical processes
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Series:
Part of GE’s Mark VI Speedtronic family for gas/steam turbine control, optimized for high-availability systems requiring TMR architecture.
Key Features:
- Triple Modular Redundancy (TMR): Three isolated circuits per input eliminate single points of failure.
- Automatic Voting & Diagnostics: Continuous 2oo3 voting detects/disables faulty channels.
- High-Accuracy RTD Measurement: Precision excitation and lead compensation.
- Flexible Sensor Support: Configurable for all major RTD types and thermistors.
- Hot Backup Sparing: Enables online module replacement.
- Integrated Isolation: 1500V channel-to-logic isolation withstands industrial noise.
- Real-Time Fault Reporting: LED indicators and software alarms for rapid troubleshooting.
- Seismic/Vibration Rated: Engineered for power plant environments.
Function/Role:
Converts resistance-based temperature signals from RTDs/thermistors into high-integrity digital data for the Mark VI controller. Performs TMR voting to ensure signal validity, enabling failsafe turbine protection and control.
Purpose/Use:
- Critical Temperature Monitoring: Bearing metals, lubricating oil, generator windings, exhaust gases.
- Redundant Safety Loops: Trip protection systems (e.g., overspeed, overtemperature).
- Process Validation: Cross-verification of single-channel sensors.
- Asset Protection: Prevents equipment damage by triggering shutdowns on abnormal temps.
Application Fields:
- Power Generation:
- Combined-cycle power plants (CCPP)
- Gas turbine peaker plants
- Steam turbine facilities
- Oil & Gas:
- Turbine-driven compressors (pipelines, LNG)
- Offshore platform power generation
- Industrial:
- Cogeneration (CHP) plants
- Petrochemical process drives
- Marine Propulsion:
- Naval vessels with turbine engines
- High-Safety Sites:
- Nuclear auxiliary systems (where certified)
- Critical infrastructure backup power
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