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GE IS220PPROH1A Mark VIe Backup Turbine Protection I/O Pack
Product Overview
The GE IS220PPROH1A is a high-reliability backup turbine protection I/O pack engineered for GE’s Mark VIe Speedtronic™ turbine control system, critical for power generation, oil and gas, and heavy industrial applications. As a core component of the Mark VIe architecture, this module provides independent overspeed protection, generator synchronization monitoring, and emergency trip functions, ensuring fail-safe operation in mission-critical turbine systems 113. The IS220PPROH1A interfaces with field devices such as speed sensors and emergency trip valves, digitizing signals for real-time processing and redundancy management.
Featuring dual 100Mbps Ethernet ports and a high-speed processor, the IS220PPROH1A supports seamless integration with Mark VIe controllers, enabling rapid data exchange and redundant communication pathways. Its -40°C to +70°C operating range and IP20-rated metal enclosure make it suitable for extreme environments, including offshore platforms and nuclear power plants 1113. The module’s triple modular redundancy (TMR) capability ensures continuous operation even if one channel fails, while LED indicators provide instant feedback on power status, network connectivity, and fault conditions.
Within the Mark VIe ecosystem, the IS220PPROH1A pairs with TREAH1A or TREAH3A terminal boards to interface with turbine sensors and actuators, simplifying wiring and reducing maintenance complexity 311. Compliance with UL 508 and IEC 61010 standards ensures safety and reliability in regulated industrial settings.
Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | IS220PPROH1A |
| Manufacturer | GE |
| Product Type | Backup Turbine Protection I/O Pack |
| Series | Mark VIe Speedtronic™ |
| Input Voltage | Dual 28V DC (±10%) |
| Output Channels | 16 isolated discrete outputs |
| Communication Protocol | 10/100Mbps Ethernet (dual ports) |
| Control Modes | Simplex, TMR (triple modular redundancy) |
| Physical Dimensions | 100 mm (L) × 80 mm (W) × 60 mm (D) |
| Weight | 0.8 kg |
| Operating Temperature | -40°C to +70°C |
| Humidity | 5–95% non-condensing |
| Mounting Type | Rack-mounted (Mark VIe I/O rack compatible) |
| Compliance | UL 508, IEC 61010, CE |
| Country of Origin | United States |
Main Features and Advantages
Hardware-Based Overspeed Protection: The IS220PPROH1A incorporates dedicated circuitry to monitor turbine speed signals, triggering emergency trips within milliseconds if overspeed thresholds are exceeded. This hardware-implemented protection ensures fail-safe operation even if the primary control system fails, critical for preventing catastrophic turbine damage
TMR Redundancy: Supporting triple modular redundancy, the module uses three independent processing channels to cross-validate data, ensuring continuous operation in nuclear power plants and offshore platforms. If one channel fails, the remaining two seamlessly take over, minimizing downtime
High-Speed Communication: Dual 100Mbps Ethernet ports enable real-time data exchange with Mark VIe controllers, reducing latency in turbine control loops. The module also supports hot-swappable installation, allowing maintenance without system shutdown
Rugged Industrial Design: With a metal enclosure and wide temperature range, the IS220PPROH1A withstands extreme conditions, including vibration, humidity, and corrosive environments. Its isolated signal channels and overvoltage protection shield against electrical noise and voltage spikes
Flexible Terminal Board Compatibility: The module works with GE’s TREAH1A, SPROH1A, and TROH1C terminal boards, offering configurable voltage thresholds and signal conditioning for various sensor types. This flexibility reduces retrofitting costs in existing turbine systems
Application Areas
The GE IS220PPROH1A is essential for industries requiring precise turbine protection and safety systems:
- Power Generation: Provides backup overspeed protection in thermal, combined-cycle, and nuclear power plants, ensuring grid stability and compliance with safety standards. Its TMR capability meets the stringent requirements of nuclear applications
- Oil and Gas: Manages emergency shutdown (ESD) systems in offshore platforms and refineries, monitoring compressor anti-surge valves and pump controls. The module’s hazardous location certification (Class I, Division 2) ensures compliance in explosive environments
- Industrial Manufacturing: Used in chemical plants and paper mills to monitor turbine-driven compressors and process-critical valves. Its redundant design reduces downtime in energy-intensive operations
- Marine Propulsion: Integrates with shipboard turbine control systems to manage propulsion valves, ensuring reliable operation in harsh marine conditions. The module’s compact size optimizes space in shipboard control cabinets .
Related Products
- GE TREAH1A Terminal Board: Connects field sensors to the IS220PPROH1A, offering configurable voltage thresholds and signal isolation for speed sensors and emergency trip switches
- GE SPROH1A Simplex Protection Terminal Board: Supports simplex protection configurations, providing voltage monitoring and signal conditioning for non-redundant turbine applications
- GE IS220PAICH2A Redundant Power Supply: Delivers dual 24V DC power to the Mark VIe I/O rack, ensuring fail-safe operation for the IS220PPROH1A
- GE IS220ACIOH1A Communication Module: Enables data exchange between the IS220PPROH1A and SCADA networks, enhancing remote monitoring capabilities
- GE TROH1C TMR Terminal Board: Supports triple modular redundancy configurations, providing redundant signal processing for high-reliability turbine protection systems
Installation and Maintenance
Pre-installation Preparations:
- Verify the Mark VIe I/O rack is grounded and powered (28V DC).
- Align the IS220PPROH1A with the backplane connectors, securing it with captive screws.
- Connect field sensors (e.g., speed probes) to the TREAH1A terminal board, ensuring proper voltage matching (28V DC).
- Configure control modes (simplex/TMR) via jumper switches, following GE’s wiring diagrams to avoid polarity errors
Maintenance Recommendations:
- Monthly Inspections: Check LED indicators for power status and fault conditions. Clean dust from ventilation slots using compressed air to prevent overheating.
- Quarterly Testing: Use a multimeter to verify input voltage thresholds and signal isolation. Test redundant power failover by disconnecting one input and confirming seamless switchover
- Annual Updates: Update firmware to the latest version to address security vulnerabilities and improve compatibility. Perform functional tests to validate overspeed trip response times
Spare Parts Management: Maintain a spare IS220PPROH1A in inventory, leveraging our global supply chain for rapid replacement. Regularly test spare modules to ensure operational readiness .
Product Guarantee
Our company provides a 12-month quality warranty for the GE IS220PPROH1A, covering hardware defects not caused by misuse or improper installation. During the warranty period, we offer free replacement for faulty modules and prioritize urgent orders through our extensive inventory and logistics network. With 17 years of industry experience, we ensure reliable support for your critical turbine control needs, even for specialized components like the IS220PPROH1A
Note: All product names, logos, and brands are property of their respective owners. This document is informational and does not substitute for GE’s official technical manuals.
GE IS220PDOAH1B | Discrete Output Module | IS220PRTDH1AWhatsapp:+86 18859254943
E-mail :sales@ygplc.com
E-mail :sales@ygplc.com
