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The IS220YTURS1A is a Turbine Input/Output Pack module designed for the Mark VI / Mark VIe turbine control system architecture. It serves as a modular I/O pack that interfaces turbine signals (such as speed pickups, flame detectors, trip relay outputs, emergency stop circuits) with the central control network.
This module enables integration of multiple discrete and analog inputs/outputs associated with turbine and generation equipment into the broader control system I/O rack. It supports modular replacement, plug-in installation in the I/O rack, and works with terminal boards designated for turbine systems.
Because of its purpose-built nature, the IS220YTURS1A is used in applications where turbine control, monitoring, protection and feedback are essential. It supports high-reliability installation, good diagnostics, and is part of the broader IS220 family of I/O packs used in turbine and process control environments.
| Parameter | Description |
|---|---|
| Module Type | Turbine I/O Pack – “YTUR” designation |
| Supply Voltage | Nominal ~28 V DC (minimum ~27.4 V DC, maximum ~28.6 V DC) |
| Input Channels | Various turbine-specific I/O: speed inputs, flame inputs, E-stop |
| Terminal Board Interface | Interfaces with TTURS1C, TRPAS1A, TRPGS1B, TRPGS2B terminal boards |
| Operating Temperature | Approximately –30 °C to +65 °C |
| Storage Temperature | Approximately –40 °C to +85 °C |
| Dimensions | Approx. 165 mm × 100 mm × 35 mm |
| Weight | Approx. 1.26 kg |
| Network Interface | Dual Ethernet ports (for I/O network redundancy) |
| Diagnostics | LED indicators for power, status, attention |
The IS220YTURS1A module is used in numerous industrial and power-generation scenarios including:
Gas turbines: capturing speed pickup signals, flame detector inputs and interfacing trip logic for turbine control.
Steam turbines: providing turbine shaft speed feedback, emergency stop logic, and interfacing with turbine terminal boards.
Generator control systems: linking turbine I/O signals into generation control and protection systems.
Offshore or marine turbo-generator platforms: rugged I/O pack module for turbine accessory signals.
Retrofit or upgrade of existing turbine control racks: replacing older modules while retaining Mark VI/Mark VIe infrastructure.
Choosing the IS220YTURS1A offers several key benefits:
Purpose-built for turbine signals: Tailored for turbine speed, flame, trip, E-stop and other turbine-specific I/O rather than generic pack.
Compact and modular: At approximately 165 × 100× 35 mm and ~1.26 kg, it fits into dense I/O racks without excessive space or weight penalty.
Reliable under industrial conditions: Supports wide temperature range (–30 °C to +65 °C) and protection for demanding field installations.
Redundant network ready: Dual Ethernet ports enable I/O network redundancy and improved system availability.
Field-serviceable: Plug-in design allows fast replacement and integration in modular racks, decreasing downtime.
Ecosystem compatibility: As part of the IS220 family and turbine control terminal board interface sets, it integrates with existing Mark VI/Mark VIe I/O architecture.
Brand: GE Fanuc
Series: Mark VI / Mark VIe I/O Pack Series (IS220 family)
Product Type: Turbine Input/Output Pack (designated “YTURS”)
The IS220 family of I/O packs includes analog, discrete, communication, servo, turbine-specific and protection modules, all designed for use in the Mark VI/Mark VIe distributed control system. The “YTURS” identifier indicates a turbine I/O pack variant within that family.
Here are five models within the same IS220 series or closely associated, along with key parameters:
| Model | Function Description | Key Parameters (Size / Weight) |
|---|---|---|
| IS220PTURH1A | Primary Turbine Trip Pack – turbine primary trip logic interface | Approx. 165 mm × 100 mm × 35 mm ; ~0.68 kg |
| IS220PPROH1A | Protection I/O Pack – turbine emergency trip / protection logic | Approx. 222 mm × 144 mm × 88 mm ; ~2.5 kg |
| IS220PSVOH1A | Servo Valve Output Pack – drives electro-hydraulic servo valves | Approx. 224 mm × 89 mm × 100 mm ; ~0.45 kg |
| IS220PAICH2A | Analog Input/Output Pack – high-density analog measurement module | Approx. 170 mm × 100 mm × 35 mm ; ~0.72 kg |
| IS220PSCAH1A | Serial Communication I/O Pack – handles RS-232/RS-422/RS-485 | Approx. 292 mm × 130 mm × 27 mm ; ~0.36 kg |
Here are five popular modules from the GE Fanuc brand, widely used in similar system architectures:
| Model | Function Description | Key Parameters (Size / Weight) |
|---|---|---|
| IS220UCSAH1A | Controller Module – central CPU for Mark VIe system | Approx. 233 mm × 177 mm × 44.45 mm ; ~2.27 kg |
| IS220PAOCH1B | Analog Output Pack – precision analog output module | Approx. 150 mm × 100 mm × 50 mm ; ~0.36 kg |
| IS220PAICH1A | Earlier generation Analog I/O Pack | Approx. 150 mm × 100 mm × 50 mm ; ~2.0 kg |
| IS220PCLAH1B | Power/Control Distribution Module – for I/O rack power | Approx. 227 mm × 175 mm × 88 mm ; ~1.3 kg |
| IS220PPRFH1A | PROFIBUS Master Gateway Pack – integrates PROFIBUS devices | Approx. 263 mm × 58 mm × 28 mm ; ~0.43 kg |
Q1: What is the main function of the IS220YTURS1A?
A1: It functions as a turbine input/output pack, capturing turbine-specific signals (speed, flame, trip, E-stop) and interfacing them to the control system’s I/O network.
Q2: What supply voltage does this module require?
A2: It operates at a nominal supply of ~28 V DC, with an operating minimum around ~27.4 V and a maximum ~28.6 V.
Q3: What are its approximate dimensions and weight?
A3: The module measures about 165 mm × 100 mm × 35 mm and weighs approximately 1.26 kg.
Q4: Can it be used in harsh environments?
A4: Yes. It is designed for turbine control environments with an operating temperature of approximately –30 °C to +65 °C and supports mounting in rugged installations.
Q5: Does it support network redundancy?
A5: Yes. It features dual Ethernet ports for I/O network redundancy, enhancing system availability.
Q6: Which terminal boards is it compatible with?
A6: It is compatible with turbine control terminal boards such as TTURS1C, TRPAS1A, TRPGS1B and TRPGS2B (depending on configuration).
Q7: Is this module suited for retrofit or upgrade?
A7: Absolutely. The IS220YTURS1A fits into the standard I/O rack architecture and is ideal for upgrades where turbine I/O packs need replacement or modernization.
Q8: What diagnostics features does it include?
A8: It includes LED indicators showing power status, network status, attention/fault, enabling field maintenance and quick visual checks.
Q9: How does it differ from a generic analog I/O pack?
A9: Unlike generic I/O packs, this module is specifically tailored to turbine control signals—speed pickups, flame detectors, trip relay outputs—and interfaces with turbine terminal boards, providing specialized functionality.
Q10: What benefits does it bring to turbine control systems?
A10: The module improves reliability, simplifies I/O integration of turbine-specific signals, supports redundancy, and reduces space/weight while maintaining compatibility within the control system architecture.
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