GE IS220PTURH1B Mark VIe Turbine Primary Trip I/O Module
Product Introduction
GE IS220PTURH1B is a turbine‑specific primary trip I/O module for the Mark VIe control system and a key hardware unit for gas turbine and steam turbine protection loops. IS220PTURH1B receives field speed, emergency shutdown and voltage detection signals, performs signal acquisition and logical operation, outputs trip drive signals, and implements critical protection functions such as unit overspeed and emergency stop. The module features IECEx UL 21.0067X explosion‑proof certification and can be deployed in hazardous areas when protection requirements are met. It supports simplex and TMR triple‑modular redundant architectures and is widely used for unit retrofits and spare‑parts replacement in power‑generation projects. Communicating with Mark VIe controllers via dual Ethernet IONet bus without intermediate converters, it reduces protection response latency.
Technical Parameters
| Parameter Item | Specification |
|---|---|
| Power Supply Input | 28 Vdc, max 0.41 A DC |
| Speed Input | ‑15 V ~ +15 V dc |
| Voltage Detection Input | 16‑140 V dc |
| E‑stop Input | 18‑140 V dc |
| E‑stop Power Output | 24 V dc open‑circuit, 24 mA dc short‑circuit |
| Relay Contact Output | 28 V dc, 7 A dc |
| Operating Temperature | ‑40 ℃ ~ +70 ℃ |
| Explosion‑proof Marking | Ex ec IIC T4 Gc, Ex ec [ic] IIC T4 Gc, Ex ic ec IIC T4 Gc, Ex ic ec [ic] IIC T4 Gc |
| Pollution Degree | Pollution Degree 2 |
| Communication Interface | Dual redundant IONet Ethernet ports |
| Certification Standard | IEC 60079‑0:2017, IEC 60079‑7:2017, IEC 60079‑11:2011 |
Core Advantages
- Dedicated for turbine primary trip logic processing; independent local processing unit reduces controller load, protection actions do not rely on host computing.
- Dual‑port redundant communication; single‑network failure will not interrupt the protection link.
- Conformal coated module, adapts to field temperature‑humidity fluctuation of power plants, resists dust and condensation interference.
- Supports auto‑configuration; replacement with same‑spec hardware does not require manually re‑downloading full logic program.
- Compatible with simplex and TMR triple‑modular redundant systems to meet different unit safety levels.
Complete LED status indicators for fast fault location of channel, communication and power supply, shorten on‑site troubleshooting time.
Product Features
- Mark VIe standard I/O form factor, rack plug‑in installation for easy assembly and disassembly.
- Hardware‑based hard trip channel; dual hardware‑software trip mechanism to avoid single‑point failure risk.
- Module body cannot directly connect field cables; must cooperate with IS200TRPAH1A terminal board for field signal transition.
- Meets IECEx explosion‑proof requirements; install inside IP54 or higher rated enclosure for hazardous‑area deployment.
- All I/O channels are isolated to reduce false tripping caused by field interference.
Application Fields
Gas‑steam combined‑cycle power plants, thermal‑power steam‑turbine control retrofits, industrial drive turbine units, oil‑gas gas‑turbine compressor sets, power‑station spare‑parts replacement and control‑system upgrade projects. IS220PTURH1B is mainly responsible for unit emergency‑shutdown protection loops, processing signals from speed probes, emergency stop buttons and voltage transformers.
Working Principle
Field sensor and switch signals are sent to IS220PTURH1B via matching terminal board. The module locally acquires speed, emergency‑stop and voltage signals; internal hardware and firmware judge trip conditions in parallel. Once overspeed, external emergency‑stop or voltage anomaly is detected, internal relay is directly driven to output trip signal and cut off unit actuators. Meanwhile, all channel status and fault codes are uploaded to Mark VIe controller and HMI over dual IONet Ethernet. Even temporary Ethernet communication loss occurs, local protection logic of IS220PTURH1B still performs trip action normally.
Peer Product Comparison
| Model | Product Positioning | Key Differences |
|---|---|---|
| IS220PTURH1B | Turbine‑specific Primary Trip I/O Pack | Integrates speed, E‑stop and voltage acquisition, hard‑trip output for main protection loop; requires IS200TRPAH1A terminal board |
| IS220PPROS1B | Backup Turbine Protection I/O Module | Focuses on PT voltage input for backup protection, does not contain full PTUR primary‑trip hardware loop |
| IS220PPRAS1B | Emergency Turbine Protection Module | Overspeed & protection‑event logging oriented; hardware channel layout differs from IS220PTURH1B |
Matching Accessories
- Mandatory matching terminal board: IS200TRPAH1A
- System compatibility: Mark VIe controller units, IS420ESWBH‑series IONet switches
- System hardware reference manual: GEH‑6721 Volume II System Hardware Guide
Our Supply Advantages
Available off‑the‑shelf spare parts for IS220PTURH1B with power‑on test before delivery. Support bulk project inquiries and small‑lot spare‑part orders. Controlled lead‑time, supply service for power‑plant automation maintenance, system integrators and repair institutes.
Frequently Asked Questions
Q1: Is full control‑logic download required after replacing IS220PTURH1B?
A1: Auto‑configuration is supported for same‑hardware‑version replacement. Full‑logic download is unnecessary; just confirm normal IONet communication.
Q2: Can IS220PTURH1B connect field cables directly without IS200TRPAH1A terminal board?
A2: Not allowed. IS220PTURH1B has no field‑wiring terminals; all field signals must transit via IS200TRPAH1A terminal board.
Q3: Can IS220PTURH1B be used in explosion‑hazardous areas?
A3: The module holds IECEx UL 21.0067X certificate. All certificate conditions must be satisfied and installed inside IP54+ certified enclosure.
Q4: Does IS220PTURH1B support TMR triple‑modular redundant architecture?
A4: Yes. Hardware supports both simplex and TMR triple‑modular redundant system configurations.
Q5: What is operating temperature range? Will high cabinet temperature in summer cause impact?
A5: Rated range ‑40℃~+70℃. Cabinet internal temperature shall not exceed 70℃; high temperature triggers module derating or fault alarms.
Q6: Is IS200TRPAH1A terminal board required when ordering IS220PTURH1B?
A6: Depends on existing on‑site condition. Re‑purchase is unnecessary if original IS200TRPAH1A remains intact; new purchase is mandatory for damaged units.
Q7: What are functions of two communication ports on IS220PTURH1B?
A7: Dual‑redundant IONet Ethernet for Network A and Network B. One network fault keeps the other link alive to enhance protection reliability.
Q8: Priority check items when IS220PTURH1B produces false tripping?
A8: Prioritize wiring, grounding and speed‑probe cable shielding on IS200TRPAH1A terminal board, then verify module supply voltage, finally check module LED status.
Hot‑selling Series Models
- IS220PCLAH1B, Core Analog Module
- IS220PPRAS1B, PPRA Emergency Turbine Protection Module
- IS220PPROS1B, Backup Turbine Protection I/O Module
- IS220PSVOH1B, Servo Control Module
- IS220PHRAH1B, HART I/O Module
- IS420ESWBH3A, IONet Network Switch
