Product Introduction
โ๏ธ Product: IS220PTURH1A
๐ท๏ธ Brand: General Electric (GE)
๐ง Series: Mark VIe Speedtronic
๐ก๏ธ Product Type: PTUR Turbine-Specific Primary Trip I/O Pack
The GE IS220PTURH1A is a Turbine-Specific Primary Trip (PTUR) I/O Pack used in GE Mark VIe turbine control systems. It provides the interface between the turbine protection terminal board and one or two redundant Ethernet IONet networks. The module is designed for critical turbine protection functions including speed monitoring, emergency trip inputs, and turbine-specific protection signals.
โก The unit interfaces with four magnetic speed inputs and supports turbine speed detection down to approximately 2 RPM for zero-speed monitoring. It is used with the IS200TRPAH1A terminal board in the Mark VIe architecture. GE documentation also identifies this hardware combination for approved hazardous-location applications.
๐ The pack includes its own processor, memory, Ethernet interfaces, turbine-specific circuitry, diagnostics, and watchdog functions. It communicates with the Mark VIe controller through redundant IONet connections and can automatically receive configuration and firmware from the controller when the appropriate auto-reconfiguration function is enabled.
Product Datasheet
๐น Model: IS220PTURH1A
๐น Brand: GE / General Electric
๐น Series: Mark VIe Speedtronic
๐น Product Type: Turbine-Specific Primary Trip I/O Pack
๐น Main Function: Primary Turbine Protection / Trip
๐น Speed Inputs: 4 ร Magnetic Pickup Inputs
๐น Speed Detection: Down to approximately 2 RPM
๐น Communication: 2 ร 10/100 Mbps Ethernet IONet Ports
๐น Power Supply: 28 VDC nominal
๐น Power Supply Range: 27.4โ28.6 VDC
๐น Maximum Current: 0.41 A DC
๐น TRPA Voltage Detection Input: 16โ140 VDC
๐น E-Stop Input: 18โ140 VDC
๐น Speed Input Range: -15 to +15 VDC
๐น E-Stop Power Output: 28 VDC, 17 mA short-circuit current
๐น Contact Output: 24โ28 VDC, up to 7 A
๐น Terminal Board: IS200TRPAH1A
๐น Output Connector: DC-62 Pin
๐น Mounting: Mark VIe I/O Pack / Terminal Board Assembly
๐น Dimensions: Approx. 82.6 ร 41.9 ร 121 mm*
๐น Weight: Approx. 0.15 kg*
๐น Country of Origin: USA
*Dimensions and weight are approximate and can vary by measurement method and packaging. The electrical values above are based on GE Mark VIe documentation, including the 28 VDC nominal supply and 0.41 A maximum current specification.
Typical Applications
๐ฅ Gas Turbine Control
โก Power Generation
๐ก๏ธ Primary Turbine Trip Protection
๐จ Emergency Stop Systems
โ๏ธ Turbine Speed Monitoring
๐ญ Industrial Turbine Automation
๐ Mark VIe Turbine Protection
Installation & Use
๐ ๏ธ Before installation, verify the complete IS220PTURH1A part number, hardware revision, terminal-board compatibility, and existing Mark VIe system configuration.
๐ The PTUR pack is designed to interface with the IS200TRPAH1A terminal board. Verify the DC-62 connection, power supply, field wiring, grounding, and Ethernet connections before energizing the system.
๐ก Check both IONet connections where redundant networking is used. Confirm link status and communication with the Mark VIe controller before performing functional tests.
๐ During commissioning, verify magnetic pickup signals, turbine-speed measurements, emergency-stop inputs, trip outputs, diagnostic status, and controller communication.
โ ๏ธ This is a primary turbine protection module. Any replacement or commissioning work should include the required turbine trip, overspeed, emergency-stop, and diagnostic checks before the equipment is returned to service.
