Description
Product Description
GE IS220PDOAH1A is a discrete output pack (PDOA) designed for the GE Speedtronic Mark VIe turbine control system, serving as a critical interface between I/O Ethernet networks and discrete output terminal boards. It integrates a shared Mark VIe processor board and a dedicated discrete output acquisition board, controlling up to 12 relays (electromagnetic or solid – state, based on terminal board type) and receiving terminal – board – specific feedback. GE IS220PDOAH1A uses dual RJ45 Ethernet ports for high – speed communication, a 3 – pin power input, and a DC – 37 pin connector for direct terminal board output. It features LED status indicators (Power, Attention, TxRx, Link) and an infrared port for local diagnostic serial communication, enabling quick troubleshooting. GE IS220PDOAH1A supports system redundancy, ensuring continuous operation during network or power disruptions, and is ideal for power generation, oil and gas, and industrial turbine control applications where reliable discrete output control is essential.
Product Parameters
- Module Type: Discrete Output Pack (PDOA) for GE Mark VIe Speedtronic turbine control system
- Core Function: Discrete output control, terminal board feedback, Ethernet communication, system diagnostics, redundancy support
- Output Channels: Up to 12 relay channels (compatible with TRLY/SRLY terminal boards; not DIN – rail DRLY boards)
- Communication Interfaces: 2×RJ45 Ethernet (I/O Ethernet networks); infrared port for local diagnostics
- Connectors: 3 – pin power input; DC – 37 pin output (direct terminal board connection)
- Power Supply: 28VDC input (Mark VIe system – compatible power)
- Response Time: ~6ms (Ethernet command to output)
- Environmental Ratings: Operating temp – 25°C to +70°C; storage temp – 40°C to +85°C; relative humidity 5% – 95% (non – condensing); IP20 protection
- Physical Specs: 3.25″ H × 1.65″ W × 4.78″ D; panel – mount design; weight ~0.5kg
- Key Features: LED status indicators, relay feedback monitoring, redundant communication, industrial – grade components
Advantages and Features
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Seamless Mark VIe Integration
GE IS220PDOAH1A is purpose – built for Mark VIe systems, ensuring plug – and – play compatibility with minimal integration effort.
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Flexible Relay Control
It supports up to 12 electromagnetic or solid – state relays, adapting to diverse load types (valves, motors, indicators) via compatible terminal boards.
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Dual Redundancy Support
Redundant Ethernet and power options keep GE IS220PDOAH1A operational during single – point failures, critical for turbine safety systems.
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Built – in Diagnostics
LED indicators and an infrared port enable rapid status checks and troubleshooting, reducing downtime for GE IS220PDOAH1A.
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Rugged Industrial Design
Wide temperature tolerance and IP20 protection ensure GE IS220PDOAH1A performs reliably in harsh power generation and turbine environments.
Application Cases in Application Fields
- Gas Turbine Control: GE IS220PDOAH1A controls fuel valves, ignition systems, and exhaust dampers in combined – cycle power plants, triggering emergency shutdowns when safety thresholds are exceeded and maintaining turbine efficiency.
- Steam Turbine Operations: It manages steam admission valves and lube oil pumps in thermal power plants, coordinating with Mark VIe DCS to adjust output during grid load changes and logging valve actuation data for maintenance.
- Oil & Gas Compression: GE IS220PDOAH1A controls compressor anti – surge valves and motor starters in offshore platforms, with redundant communication ensuring control continuity during harsh weather.
- Industrial Turbine Retrofits: It upgrades legacy turbine control systems, integrating with modern SCADA for remote monitoring and reducing reliance on outdated analog control components.
Comparisons with Competing Products
| Parameter | GE IS220PDOAH1A | Siemens 6ES7 132-6BH00-0BA0 | ABB DO810 |
|---|---|---|---|
| Core Type | Discrete Output Pack (Mark VIe – dedicated) | Digital Output Module (ET 200SP) | Digital Output Module (AC 800M) |
| Output Channels | 12 relays (terminal – board – dependent) | 8 relays (2A/channel) | 8 relays (5A/channel) |
| Communication | Dual Ethernet (Mark VIe I/O Net) | PROFINET | Profibus, Ethernet/IP |
| Redundancy | Native Mark VIe redundancy | Optional via ET 200SP HA | ABB AC 800M system redundancy |
| Key Strength | Turbine control optimization; built – in feedback | Wide Siemens ecosystem; hot swap | High channel current; ABB DCS integration |
| Target Use | Power generation (turbines); Mark VIe systems | General manufacturing; distributed I/O | Process industries; ABB – based DCS |
Selection Suggestions and Precautions
Selection Suggestions
- Choose GE IS220PDOAH1A for Mark VIe turbine control projects needing 12 – channel relay output, feedback monitoring, and native system redundancy.
- Select it for power generation, oil and gas, and industrial turbine applications where reliable discrete control and fast response are critical.
Precautions
- Match GE IS220PDOAH1A with compatible TRLY/SRLY terminal boards; avoid DIN – rail DRLY boards.
- Ensure 28VDC power input compliance and proper grounding to prevent damage to GE IS220PDOAH1A.
- Use GE’s Mark VIe software for configuration and diagnostics to unlock full functionality of GE IS220PDOAH1A.
- Regularly check LED status and run diagnostic scans to maintain GE IS220PDOAH1A performance and prevent unplanned downtime.
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