



The GE IS220PAOCH1A is an Analog Output I/O Pack Module designed for GE Mark VIe turbine control systems. It is responsible for converting digital control signals into high-precision analog outputs used to drive actuators, control valves, and other field devices in power generation and industrial automation systems.
This module is a key part of GE’s distributed I/O architecture, ensuring accurate signal execution with fast scan cycles and stable communication over dual Ethernet networks.
Technical Specifications — Analog Output Hardware Profile
| Category | Specification |
|---|---|
| Manufacturer | General Electric (GE) |
| Series | Mark VIe Speedtronic |
| Product Type | Analog Output I/O Pack Module |
| Functional Code | IS220PAOCH1A |
| Main Function | Analog signal output & actuator control |
| Channels | 2 analog current loop outputs |
| Output Range | 0–20 mA (configurable system dependent) |
| Resolution | 16-bit digital-to-analog conversion |
| Input Channels | Up to 10 analog input monitoring channels (system dependent) |
| Communication Interfaces | Dual RJ45 Ethernet ports |
| Control Scan Rate | ~5 ms typical cycle time |
| Power Consumption | ~5–6 W |
| Power Input | 3-pin DC power connector |
| Wiring Interface | DC-37 terminal connection to terminal board |
| Diagnostics | LED indicators for status and fault detection |
| PCB Design | Industrial multilayer PCB |
| Protection | Conformal coating for harsh environments |
| Operating Temperature | -30°C to +65°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (L × W × H) | Approx. 180 × 120 × 40 mm |
| Weight | ~1.0 kg |
This module is designed for high-speed analog output control, ensuring precise actuation in turbine regulation systems such as fuel control and hydraulic positioning loops.
Recommended Related Models — GE Mark VIe I/O Ecosystem
The IS220PAOCH1A is commonly used alongside:
- IS215UCVEH2AF — VME controller module
- IS215UCVFH2A — turbine control processor module
- IS210BPPCH1AD — I/O processor board
- IS215VCMIH2CC — communication interface module
- IS215WEPAH2B — wind energy pitch axis module
Together, these modules form a complete control → communication → field actuation chain in GE turbine systems.
Popular GE Mark VIe Modules — Widely Used Industrial Components
Common GE industrial automation modules include:
- IS210AEBIH2BE — wind turbine interface module
- IS200VVIBH1C — vibration monitoring module
- IS200EGDMH1A — diagnostic communication gateway module
- IS200TRLYH1B — relay output module
- IS200TBAIH1C — terminal board assembly module
These components are widely used in global energy infrastructure due to their long-term reliability and stable field performance.