IS220PDOAH1A processor module  

IS220PDOAH1A is a distributed discrete output module (with embedded processor, commonly known as DO package module) for Mark VIe turbine control system, responsible for issuing switch commands to drive on-site relays and solenoid valves.
Product Features
1. Built in independent processor, dual IONet Ethernet redundant communication, and high-speed interaction instructions with Mark VIe main control
2. There are a total of 12 Form-C relay outputs that can directly drive on-site solenoid valves, contactors, and alarm indicator lights
3. Channel circuit current monitoring, with built-in fault diagnosis for wire breakage and short circuit, real-time reporting of channel abnormalities
4. Electrical isolation design, isolating strong electrical interference on site and protecting the main control side circuit from impact
5. Support hot swapping, direct replacement inside the cabinet, no need to shut down the entire machine, shorten maintenance time

Product Specifications
1. Model: IS220PDOAH1A
2. System: GE Speedtronic Mark VIe
3. Type: Discrete Output DO Package Module (onboard processor)
4. Output: 12 relay contact outputs
5. Communication: Dual RJ45 IONet
Application Areas
1. Interlocking and ESD emergency shutdown circuit of gas turbine unit
2. Control of auxiliary valves, oil pumps, and fan switches for steam turbines
3. Replacement of spare parts for maintenance of Mark VIe control system cabinet in power station
4. Renovation of protection logic circuit for cogeneration unit
5. Upgrade of automation control system for petrochemical turbine unit
The IS220PDOAH1A discrete output module is a commonly used I/O spare part for the Mark VIe system in the maintenance of the power plant turbine unit switch interlock circuit.