GE

1. Full Model & Model Breakdown

Full Model Name: GE IS420PUAAH1A Universal Analog IO Module

IS420PUAAH1A is the complete part number. It belongs to GE Mark VIe turbine control system. Mark VIe is the upgraded platform of Mark VI system.

Dedicated universal analog IO module for GE Mark VI control system.
Integrated with multiple analog input channels and analog output channels.
Analog Input: Acquire field transmitter signals (4-20mA, DC voltage), convert analog signals into digital signals for main controller calculation.
Analog Output: Receive commands from main controller and output standard analog signals to drive valve positioners and field actuators.
Built-in signal conditioning and filtering circuits suppress electromagnetic interference in industrial environments and guarantee measurement accuracy.
Supports open-circuit detection and over-range self-diagnosis. Fault information is uploaded to the controller via the backplane.
Communicates with the controller through Mark VIe system backplane to complete process data collection and distribution of control commands.

Compatible with control systems of GE Mark VIe gas turbine and steam turbine generator units.
Deployed in turbine unit control cabinets of thermal power plants and combined-cycle power stations.
Collect process analog parameters such as temperature, pressure, liquid level and vibration.
Output regulating signals to control various field actuators including inlet valves and feedwater valves.
Participates in unit load regulation, process monitoring and closed-loop control of continuous processes.
Widely used as spare module for maintenance and replacement of gas turbine control systems in power plants to ensure stable operation of automatic regulation loops.