Description
GE IS220PTURH1B
Product Overview
The GE IS220PTURH1B is a Mark VIe Turbine Specific Primary Trip I/O Pack designed for turbine protection and primary trip functions. The PTUR pack provides the electrical interface between one or two I/O Ethernet networks and the turbine-control terminal board. GE’s certification documentation specifically identifies the IS220PTURH1B for use with the IS200TRPAH1A accessory terminal board.
Unlike a conventional Mark VIe discrete I/O pack, the GE IS220PTURH1B is dedicated to turbine-specific protection and trip functions. Available GE system documentation shows PTUR/ YTUR functionality associated with turbine-specific primary-trip logic, including pulse-rate processing, fast overspeed protection, acceleration inputs, and primary-trip relay outputs. The PTUR logic is therefore part of the protection path, not simply general-purpose process I/O.
The GE IS220PTURH1B contains the distributed I/O processing hardware required to interface turbine-specific signals with the Mark VIe control system. Secondary technical references describe interfaces for multiple speed-sensor inputs, turbine voltage/current-related signals, flame-sensor inputs, and primary-trip outputs; the exact installed signal configuration must still be checked against the terminal-board wiring and application configuration.
For replacement work, the terminal board is critical. GE documentation identifies IS200TRPAH1A as the compatible accessory board. Do not treat PTUR as interchangeable with PPRO, PPRA, PGEN, or standard Mark VIe I/O packs simply because they share the IS220 form factor.
Product Introduction
A turbine trip interface has a very different job from ordinary control-system I/O. The IS220PTURH1B sits in the Mark VIe turbine-specific primary-trip path, processing protection-related turbine signals and interfacing them with the associated trip terminal board. GE identifies the H1B directly as a Turbine Specific Primary Trip I/O Module.
For a Mark VIe turbine protection replacement, start with the complete PTUR assembly: , IS200TRPAH1A, Ethernet network arrangement, wiring, and application configuration. The module revision alone does not establish complete system interchangeability.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | GE |
| Model | |
| Product Family | Mark VIe |
| Functional Acronym | PTUR |
| Product Type | Turbine Specific Primary Trip I/O Pack |
| Primary Function | Turbine-specific primary trip/protection I/O |
| Associated Terminal Board | IS200TRPAH1A |
| Ethernet I/O Networks | 1 or 2 I/O Ethernet networks |
| Turbine Signal Processing | Turbine-specific protection and trip signals |
| Speed Inputs | Four pulse-rate circuits are documented in PTUR functional material |
| Fast Overspeed Functions | Supported within PTUR application logic |
| Primary Trip Outputs | Primary trip relay outputs documented in PTUR system logic |
| Firmware | Application/system dependent; verify installed revision |
| Communication | Mark VIe I/O Ethernet architecture |
| Installation | IS200TRPAH1A terminal-board assembly |
| Hazardous-Area Certification | Certified configurations exist when paired with the specified terminal board |
| Operating Temperature | Exact general-purpose rating should be taken from the applicable GE installation documentation |
| Protection Rating | Not safely inferred from the module catalog number |
GE’s certification documentation confirms the and IS200TRPAH1A pairing and provides the applicable hazardous-location certification context.
IS220PTURH1B
Major Features / Practical Advantages
Turbine-specific primary trip architecture
The defining feature of the is its dedicated PTUR function. It is intended for turbine-specific primary-trip applications rather than general process I/O.
The PTUR processing path includes turbine protection signals that require faster and more deterministic treatment than ordinary supervisory measurements. GE’s system material documents four pulse-rate circuits and associated fast overspeed protection functions.
Primary overspeed and trip signal processing
PTUR application logic can process pulse-rate signals into RPM-related values and compare them with configured fast-trip setpoints. The documented signal-space material includes four pulse-rate channels, acceleration processing, and fast-trip paths associated with the primary trip outputs.
That makes the module particularly important in turbine applications where a failed or incorrectly configured protection interface can have consequences well beyond loss of a normal process signal.
One- or two-network I/O interface
The PTUR pack provides an interface between one or two I/O Ethernet networks and the turbine terminal board. This distributed architecture allows the turbine-specific signal-processing hardware to participate in the Mark VIe I/O network while remaining physically located at the associated terminal-board assembly.
Dedicated terminal-board relationship
GE specifically identifies as the accessory terminal board for . This is not a minor procurement detail. Terminal-board compatibility determines how the field signals actually reach the I/O pack.
H1B revision
The H1B designation matters when replacing older PTUR hardware. Procurement references identify IS220PTURH1A as superseded by . That does not mean every H1B can be installed without checking the system configuration; it means the revision relationship should be considered when evaluating an existing H1A installation.
Suitable for turbine protection applications
The PTUR architecture is intended for turbine-specific primary trip functions. Depending on the configured application, documented PTUR functionality includes speed sensing, acceleration-related inputs, fast overspeed protection, and primary trip relay output paths.
Related Products
- — dedicated terminal board for the PTUR I/O pack; verify this board before approving a replacement.
- IS220PTURH1A — earlier PTUR I/O pack revision; documented as superseded by H1B in procurement references.
- IS220YTURS1A — Mark VIeS Turbine Specific Primary Trip I/O Pack; different product architecture and should not be treated as a direct PTUR substitute.
- IS220PPROH1A — Mark VIe Backup Turbine Protection I/O Module; serves a different protection function.
- IS220PPRAS1B — Mark VIeS Control PPRA Emergency Turbine Protection Module; used for aero/aircraft-derived turbine protection applications.
- IS220PGENH1A — Mark VIe generator-related I/O pack; different functional purpose.
- IS220PDIAH1B — Mark VIe discrete-input I/O pack; general discrete input function rather than turbine-specific primary trip.
- IS220PDOAH1A — Mark VIe contact-output I/O pack; general output function rather than the PTUR protection path.
- IS220PVIBH1B — Mark VIe vibration-monitoring I/O pack; intended for turbine vibration monitoring rather than primary trip processing.
FAQ
What is GE ?
It is a Mark VIe Turbine Specific Primary Trip I/O Pack used in GE turbine-control and protection systems. GE’s certification documents use this exact functional designation.
Which terminal board is used with ?
The GE-certified configuration identifies as the accessory terminal board for the .
Is a normal digital I/O module?
No. Although it is an I/O pack, its function is specifically turbine primary trip/protection. It should not be evaluated as a generic discrete-input or discrete-output replacement.
What turbine signals can PTUR process?
The documented PTUR functional material includes four pulse-rate circuits, RPM/acceleration processing, fast overspeed protection, and primary-trip relay output paths. Other application-specific signals can be associated with the turbine terminal-board configuration.
Is the replacement for IS220PTURH1A?
Available procurement documentation identifies IS220PTURH1A as superseded by . Before replacing an H1A in an operating turbine, verify the Mark VIe application release, terminal board, wiring, and approved hardware revision.
Can I hot-swap ?
Do not assume online replacement is acceptable merely because Mark VIe uses modular I/O packs. PTUR participates in a turbine protection path. Replacement must follow the plant’s approved Mark VIe maintenance procedure, including protection-system isolation and post-maintenance validation.
Does have firmware?
Yes, the I/O pack operates with embedded/system firmware, but the exact firmware revision is not established by the catalog number alone. The installed firmware should be checked against the Mark VIe application and control-system release before replacement.
Does the communicate through Ethernet?
Yes. The PTUR pack provides the interface between one or two I/O Ethernet networks and the associated turbine terminal board.
Is suitable for hazardous locations?
GE certification documents include the with the terminal board in certified hazardous-location configurations. Certification conditions and the complete installation configuration must be observed; the module catalog number alone should not be treated as blanket hazardous-area approval.
What should I verify when purchasing New Surplus ?
Request clear photographs of the nameplate, revision markings, serial number, connectors, and PCB condition. Confirm that the supplied unit is actually H1B and not an H1A represented by a generic PTUR description. Also verify the associated terminal board, firmware, Mark VIe software release, and previous test status.
Procurement Note
The should be treated as a turbine protection component, not as ordinary Mark VIe I/O inventory.
Before releasing a purchase order, verify:
- Exact catalog number: .
- PTUR functional designation.
- H1B hardware revision.
- Associated terminal board.
- Existing Mark VIe/Mark VIeS architecture.
- One- or two-network I/O Ethernet arrangement.
- Turbine speed and trip signal wiring.
- Application firmware/software compatibility.
- Hardware revision and serial number.
- Actual electrical and functional test status.
- Hazardous-area certification requirements where applicable.
- Post-replacement trip/protection validation procedure.
One important field distinction: is not simply an upgraded version of a standard Mark VIe I/O pack. Its job is tied directly to turbine-specific primary-trip functions. A physically compatible-looking Mark VIe I/O pack is not automatically an acceptable substitute.
For a legacy turbine installation, the safest procurement path is to match the complete PTUR pack + TRPA terminal board + Mark VIe application configuration, then verify the installed protection logic after replacement. GE’s own certification documentation provides the critical PTUR-to-TRPA relationship.
