Product Overview
In turbine control systems, signal integrity and precise analog I/O handling are critical. The GE IS220PAICH2B Analog I/O Pack delivers reliable performance for Mark VIe series applications. Manufactured by GE Energy, this module acts as the interface between one or two I/O Ethernet networks and an analog input terminal board (TBAI board). It is designed for use with a BPPB processor board and a BPAI acquisition board, ensuring seamless integration into your existing control architecture.
Key Features & Benefits
- Supports up to 10 analog inputs with flexible configuration options.
- First 8 inputs configurable as ±5 V, ±10 V, or 0-20 mA current loop inputs.
- Last 2 inputs configurable as ±1 mA or 0-20 mA current inputs.
- Provides 2 analog outputs, with the first supporting 0-200 mA current output.
- Dual RJ-45 Ethernet connectors for primary and redundant network interfaces.
- DC-37 pin connector for direct terminal board connection.
- Visual diagnostics via indicator LEDs for quick status checks.
Technical Specifications
| Parameter |
Specification |
| Part Number |
IS220PAICH2B |
| Manufacturer |
General Electric |
| Series |
Mark VIe |
| Product Type |
Thermocouple Analog I/O Terminal Board |
| Operating System |
QNX |
| Power Requirements |
+5 V dc, 6A |
| Number of Input Channels |
12 |
| Power Supply Voltage |
28 V dc |
| Voltage Range |
18 - 32 VDC |
| Mounting |
DIN-rail mounting |
| Technology |
Surface mount |
| Operating Temperature |
40 to 70°C |
| Size |
33.0 cm high x 17.8 cm |
| Country of Origin |
United States |
| Manual |
GEH-6721_Vol_Il |
Real-World Applications
The GE IS220PAICH2B is a critical component in GE Speedtronic Gas Turbine Control Systems. It excels in applications requiring precise analog signal acquisition and output, such as:
-
Gas turbine speed and temperature monitoring – The flexible input configurations allow direct connection to thermocouples and current-loop sensors.
-
Industrial process control – Use the analog outputs for driving actuators or setpoints in complex control loops.
-
Redundant control systems – With dual Ethernet ports, the module supports redundant network topologies for high-availability installations.
Installation & Setup Guidance
Mount the IS220PAICH2B on a standard DIN rail. Ensure the power supply provides +5 V dc at 6A to the module. Connect the primary Ethernet cable to the ENET1 port and, for redundancy, connect a second cable to ENET2. Use the 3-pin power connector to supply 28 V dc for both the I/O pack and the terminal board. The DC-37 connector on the underside links directly to the compatible terminal board (TBAIHIC or STAI). Verify that the terminal board is the HIC version; older revisions will report compatibility issues but will not cause physical damage. After installation, use the indicator LEDs to confirm proper power and network status.
Maintenance & Reliability
Routine maintenance is minimal. Periodically inspect the module for dust accumulation and ensure proper airflow around the unit to maintain operating temperature within the 40 to 70°C range. Check that all connectors are secure and free from corrosion. Since the module uses surface-mount technology, it offers high reliability in demanding environments. Regular visual inspections and network diagnostics will help prevent unexpected downtime.
Compatibility & Integration
The IS220PAICH2B is compatible with the Mark VIe control system. It works with the BPPB processor board and BPAI acquisition board. The module supports both single and redundant Ethernet networks via its dual RJ-45 connectors. It is compatible with the TBAIHIC and STAI analog input terminal boards. Note that it is not compatible with the DIN-rail mounted DTAI board. The module is supported in ControlST software suite V04.03 and later when using the BPPC processor board (as found in the H2B revision).
Selection Guide & Purchasing Advice
Before purchasing the GE IS220PAICH2B, verify that your system uses the Mark VIe series and that the terminal board is the HIC version. Confirm your power supply can deliver +5 V dc at 6A, and that the operating environment stays within the specified temperature range. For additional support or to place an order, PLC Source PRO offers genuine GE parts with fast shipping and expert assistance.