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Product Introduction
The GE IS220PDIAH1A Discrete Contact Input Terminal Board is a key component of GE’s Mark VIe control platform, providing a reliable and efficient interface between field-mounted discrete devices and the turbine or process control system.
Designed for seamless integration with GE’s IS220 series I/O packs, the IS220PDIAH1A terminal board offers flexible, high-density connection points for a wide range of contact input signals. It is optimized for turbine control systems, power generation equipment, and other industrial automation environments where accurate and fast response to discrete inputs is critical for safe and efficient operation.
With robust construction, comprehensive diagnostic capabilities, and high immunity to electrical noise, the IS220PDIAH1A enhances the reliability and maintainability of modern control systems.
Product Specifications
| Parameter | Specification |
|---|---|
| Product Name | GE IS220PDIAH1A Discrete Contact Input Terminal Board |
| Model Number | IS220PDIAH1A |
| Series | GE Mark VIe / IS220 Series |
| Function | 24-point discrete contact input terminal board |
| Number of Input Channels | 24 channels (discrete inputs) |
| Input Voltage Range | 24 VDC (nominal), 18–32 VDC |
| Input Type | Dry contact or voltage input |
| Input Current | 4–8 mA |
| Input Impedance | ~3 kΩ nominal |
| Isolation | Channel-to-channel and channel-to-ground |
| Signal Debouncing | Configurable |
| Onboard Diagnostics | Yes (open circuit, short, status LEDs) |
| Communication Interface | Ethernet (via compatible I/O pack) |
| Input Power | Supplied via I/O pack |
| Power Consumption | ~5 W typical |
| Operating Temperature Range | -30°C to +65°C |
| Storage Temperature Range | -40°C to +85°C |
| Humidity Range | 5% to 95%, non-condensing |
| Shock / Vibration Compliance | IEC 60068 |
| Mounting Type | Panel or DIN rail mount |
| Dimensions (H x W x D) | 159 x 178 mm |
| Weight | 0.8 kg |
| Certifications | CE, UL, CSA, ISO9001 |
Product Applications
The GE IS220PDIAH1A terminal board is widely used in turbine and industrial control systems to interface field contact signals to the control logic. Common applications include:
-
Gas Turbine Control
Receives status signals from limit switches, proximity sensors, trip devices, and permissive contacts. -
Steam Turbine Protection
Inputs from valve position switches, emergency trip devices, and interlocks. -
Generator Control Systems
Interfaces discrete status signals from circuit breakers, protection relays, auxiliary systems. -
Balance of Plant (BOP)
Captures control and status signals for pumps, motors, dampers, and auxiliary systems. -
Industrial Automation
Handles discrete inputs from safety systems, alarm panels, conveyor controls, and machinery. -
Retrofit Projects
Provides an easy upgrade path for older GE Mark V and Mark VI discrete input modules.
Product Advantages
-
High-Density Inputs
24 discrete input channels allow compact system designs and save panel space. -
Wide Voltage Range
Supports 18–32 VDC operation for flexibility in different plant environments. -
Diagnostic Features
Onboard status LEDs and configurable fault diagnostics improve maintainability. -
Fast Response
Accurate and fast detection of field signals ensures safe turbine and process operation. -
Electrical Isolation
Provides channel-to-channel and channel-to-ground isolation, enhancing system robustness. -
Flexible Mounting Options
Panel or DIN rail mounting supported for simplified installation. -
Global Certifications
Meets CE, UL, CSA standards for international installations. -
Seamless Integration
Works with Mark VIe and IS220 series control platforms.
Frequently Asked Questions (FAQ)
-
What is the function of the IS220PDIAH1A module?
It serves as a terminal board for connecting 24 discrete input signals to the Mark VIe control system. -
How many input channels are provided?
24 discrete input channels. -
What is the nominal input voltage?
24 VDC nominal (range 18–32 VDC). -
Does it support both wet and dry contact inputs?
Yes, it supports both dry contact and voltage inputs. -
What isolation does the board provide?
Full channel-to-channel and channel-to-ground isolation. -
Are there built-in diagnostics?
Yes, the board has onboard diagnostics with status LEDs. -
What are the typical applications?
Gas/steam turbine control, generator protection, BOP, and industrial automation. -
Is it compatible with older GE Mark VI or Mark V systems?
Yes, it is designed for seamless retrofit and upgrade applications. -
How is the module mounted?
It can be mounted on a panel or DIN rail. -
Does the board meet international certifications?
Yes—CE, UL, CSA, and ISO9001 certified.
Recommended Related Models
| Model Number | Description |
|---|---|
| IS220PDIOH1A | Digital Input/Output Module |
| IS220PAICH1B | Analog Input Module |
| IS220PAOCH1B | Analog Output Module |
| IS220PPROH1A | Turbine Protection Module |
| IS220PTCCH1A | Thermocouple Input Module |
| IS220PPRCH1B | Proportional Control Module |
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|---|---|
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| DS200PTBAG1A | Terminal Board |
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