IS220PTURH1BF GE

Model: IS220PTURH1BF
Manufacturer: GE (General Electric)
Core Function: Acts as a primary turbine protection I/O pack, interfacing speed sensors, flame detectors, and discrete trip signals to enable rapid, reliable turbine shutdown while providing diagnostics and electrical isolation for safety-critical paths.
System Compatibility: Compatible with Mark VIe and Mark VIeS control systems, supporting simplex, duplex, or TMR architectures.
Supply Status: In Stock for immediate global shipment.
Warranty Standard: 12-month functional warranty, fully tested.

Key Technical Specifications

Product Model: IS220PTURH1BF
Manufacturer: GE
System Platform: Mark VIe Turbine Control System
Power Supply Voltage: 24-28 V DC nominal, with extended operating range of 18-32 V DC for tolerance to field variations.
Power Consumption: Approximately 5-7 W typical, ensuring low thermal impact in multi-pack racks.
Communication Interfaces: Dual 100 Mbps full-duplex Ethernet RJ45 ports for IONet, supporting redundant, deterministic communication.
Speed Sensor Inputs: 4 channels for magnetic pickup units (MPUs), handling passive or active sensors with pulse rates from 2 Hz to 20 kHz.
Flame Sensor Inputs: 8 channels optimized for ultraviolet/infrared flame detectors, with adjustable thresholds for combustion monitoring.
Discrete Inputs: Multiple contact inputs for emergency trip commands, permissives, and status monitoring.
Trip Functionality: Supports fast-acting trip logic execution with configurable outputs to shutdown relays or solenoids.
Operating Temperature Range: -30°C to +65°C (-22°F to +149°F), suitable for turbine enclosure and control room environments.
Humidity Tolerance: Up to 95% non-condensing, with protective conformal coating on circuitry.
Dimensions: Standard Mark VIe I/O pack size approximately 8.26 cm × 4.19 cm × 12.1 cm (height × width × depth).
Weight: Approximately 0.5 kg, designed for straightforward field handling and replacement.
Certification Standards: CE marked, UL listed, compliant with IEC 61131-2 for industrial control equipment and EMC requirements.
MTBF (Mean Time Between Failures): Greater than 250,000 hours per GE reliability data, promoting extended uptime in protection applications.
Isolation Voltage: 1500 V AC isolation between I/O channels, power supply, and Ethernet interfaces to mitigate noise and transients.

Technical Architecture & Functional Positioning

The IS220PTURH1BF is engineered for the protection layer in Mark VIe systems, serving as the primary interface for turbine-specific safety signals that demand the highest reliability and fastest response. It connects to a dedicated terminal board (such as IS200TRPAH series) to acquire inputs from speed probes for overspeed detection, flame sensors for combustion verification, and discrete contacts for emergency stops. Local processing digitizes these signals, applies threshold-based logic, and initiates trip commands directly or via IONet to the controller, ensuring sub-millisecond protection actions independent of normal control paths.

This pack incorporates high-speed counters for accurate RPM measurement, conditioned flame inputs with fault detection (open/short), and integrated diagnostics that continuously monitor sensor health and internal integrity. These capabilities address critical turbine risks, including rotor burst from overspeed, hazardous fuel accumulation from flame loss, or failure to respond to operator-initiated trips. In redundant TMR configurations, multiple packs enable 2-out-of-3 voting, enhancing fault tolerance while minimizing nuisance trips. The Ethernet IONet backbone provides synchronized data sharing, and firmware supports ToolboxST configuration for custom trip settings, sensor scaling, and alarm management.

Fail-safe design elements, such as watchdog timers and automatic trip on detected faults, align with turbine safety standards, making this module essential for applications where unplanned shutdowns carry high costs or safety implications.