GE IS220PPROS1B

Technical Specifications

• Manufacturer: General Electric (GE) Energy, GE Boards & Turbine Control
• Product Series: Mark VIe Speedtronic Control System
• Module Type: Backup Turbine Protection I/O Pack (PPRO)
• Part Number: IS220PPROS1B (Functional Revision B)
• PCB Coating: Conformal coating for protection against dust, moisture, and corrosion
• Processor: 32‑bit embedded local processor optimized for turbine protection data processing
• Memory: 8 MB flash memory for program storage, 4 MB DRAM for data buffering
• Power Supply: 28 V DC (nominal), voltage range 27.4–28.6 V DC; typical current draw 120 mA DC
• Digital Inputs: 16 dedicated inputs for turbine speed, acceleration, and trip status monitoring (24 V DC wetting voltage)
• Digital Outputs: 16 dedicated outputs for trip relay control and safety shutdown signals (32 V DC max, 110 mA DC per channel)
• Communication Interfaces: 2 × 100Base‑TX Ethernet ports (RJ‑45) for IONet communication with Mark VIe controllers
• Terminal Board Compatibility: TREG, TREL (Large Steam Turbine), TRES (Small/Medium Steam Turbine), TREA (Turbine Emergency Trip) terminal boards
• Speed Monitoring: Hardware‑implemented overspeed, acceleration, and deceleration detection; supports 3 speed signal types
• Operating Temperature: -40°C to +70°C
• Storage Temperature: -55°C to +85°C
• Humidity Range: 5%–95% non‑condensing
• Vibration Resistance: Compliant with IEC 60068‑2‑6 (10–500 Hz, 10 g peak)
• Shock Resistance: Compliant with IEC 60068‑2‑27 (50 g, 11 ms duration)
• Isolation: Channel‑to‑backplane opto‑isolation (2500 Vrms) for noise immunity
• Certifications: UL/cUL Class I, Div 2 compliant; IEC 61010‑1 safety certified; CE marked for EMC compliance
• Dimensions: 83 mm × 42 mm × 122 mm (3.27 in × 1.65 in × 4.80 in)
• Weight: 340 g (0.75 lbs)

Functional Features

• Backup Protection: Works with PTUR module to provide redundant turbine protection, monitoring speed, acceleration, and trip signals for emergency shutdown.
• Hardware‑Implemented Overspeed Detection: Independent hardware logic for overspeed monitoring ensures fast response times (≤ 10 ms) without software latency.
• Redundant Communication: Dual Ethernet ports support IONet communication with Mark VIe controllers, ensuring uninterrupted data transfer during faults.
• TMR Support: Compatible with triple modular redundancy configurations for high‑reliability applications requiring fault tolerance.
• Trip Terminal Board Integration: Interfaces with TREG, TREL, TRES, and TREA terminal boards to connect with turbine trip relays and safety systems.
• Diagnostic Monitoring: Built‑in diagnostics for speed signal loss, trip relay faults, and Ethernet link health, with status LEDs for rapid fault detection.
• ToolboxST Compatibility: Fully integrated with GE ToolboxST for configuration, real‑time monitoring, and firmware updates.
• Hot‑Swappable Design: Supports hot‑swap replacement without system shutdown, reducing maintenance downtime.
• Conformal Coating: Protects against harsh environmental conditions, ensuring reliable performance in power plants and industrial facilities.

Application Scenarios

• Mark VIe Turbine Control: Backup protection module in Mark VIe systems for gas/steam turbines, monitoring speed and initiating emergency shutdowns.
• Power Generation: Deployed in utility‑scale power plants to provide redundant protection for generators and turbine systems.
• Oil & Gas Infrastructure: Used in compressor stations, LNG plants, and offshore platforms to protect turbines from overspeed and mechanical failure.
• Industrial Process Control: Critical component in turbine‑driven pump and compressor systems for safety interlock and shutdown control.
• TMR Architectures: Essential for TMR systems in nuclear power plants and other high‑risk applications requiring fault tolerance.
• Retrofit Projects: Compatible with legacy Mark VI systems for upgrade to Mark VIe, enhancing turbine protection capabilities.

Compatibility

• GE Platforms: Mark VIe Speedtronic control systems, compatible with simplex, dual, and TMR architectures
• Terminal Boards: TREG, TREL, TRES, TREA turbine emergency trip terminal boards
• Primary Protection Module: PTUR (Turbine Primary I/O Pack) for redundant protection configuration
• Communication Protocols: 100Base‑TX Ethernet (IONet) for data exchange with Mark VIe controllers
• Power Supplies: 28 V DC industrial power systems with 27.4–28.6 V DC range
• Software: GE ToolboxST for configuration, diagnostics, and firmware updates

Installation Notes

1. Backplane Mounting: Install in Mark VIe standard chassis, align with backplane connectors, and secure with locking clips to prevent vibration‑induced disconnections.
2. Power Connection: Supply 28 V DC to power terminals, verify correct polarity to avoid component damage; ensure power supply meets 27.4–28.6 V DC range.
3. Terminal Board Setup: Connect to compatible trip terminal boards (TREG, TREL, TRES, TREA) and verify wiring against module pinout specifications.
4. Ethernet Configuration: Connect dual Ethernet ports to Mark VIe IONet network; assign unique IP addresses and enable redundancy mode.
5. Configuration: Use ToolboxST to set speed monitoring parameters, trip thresholds, and communication settings according to turbine specifications.
6. Diagnostic Check: After installation, perform self‑test via ToolboxST to verify input/output channels, communication links, and protection logic.
7. Environmental Protection: Ensure installation enclosure has IP54 or higher rating to complement conformal coating and protect against dust, moisture, and chemical exposure.
8. Post‑Installation Testing: Conduct overspeed simulation and trip relay activation tests to confirm module operation before system commissioning.

Key Advantages

• Redundant Protection: Works with PTUR module to provide dual‑layer turbine protection, minimizing the risk of catastrophic failure.
• Hardware‑Implemented Safety: Independent overspeed detection ensures fast response times and reliable shutdowns without software dependency.
• High‑Availability Communication: Dual Ethernet ports and redundant architecture ensure uninterrupted operation in critical applications.
• Rugged Design: Conformal coating and wide operating temperature range guarantee reliable performance in harsh industrial environments.
• Advanced Diagnostics: Built‑in fault detection and status LEDs enable rapid troubleshooting, reducing maintenance time and costs.
• ToolboxST Integration: Simplifies configuration, monitoring, and maintenance, lowering total cost of ownership.