GE IS220PDOAH1A Proportional Digital Output Module
Product Description:
The GE IS220PDOAH1A is a Proportional Digital Output Module, a key component in GE’s Mark VIe Series for distributed gas turbine control systems. It serves as an electrical interface between 1–2 I/O Ethernet networks and discrete output terminal boards, integrating a common Mark VIe processor board and a discrete output-specific acquisition board. Controlling up to 12 relays, it supports simplex, dual, and triple-modular redundant (TMR) configurations.
Communication occurs via dual RJ45 Ethernet ports, with power supplied through a three-pin connector, and outputs routed via a DC-37 pin connector to terminal boards. LED indicators and an infrared port provide visual and serial diagnostics.
Key Features:
Relay Control: Manages up to 12 relays, compatible with electromagnetic and solid-state types, but not DIN-rail DRLY boards.
Flexible Configurations: Supports simplex, dual, and TMR setups, adapting to diverse system redundancy needs.
Easy Installation: Plugs directly into terminal boards, secured via threaded studs to avoid connector stress; soft-start capability allows hot-plugging power.
Robust Communication: Dual 10/100 Ethernet ports with DHCP for network addressing; infrared port enables local serial diagnostics.
Processor & Safety Features: High-speed processor with flash/RAM, hardware watchdog, ambient temperature sensor, and electronic ID verification for board matching.
Diagnostics: LED status indicators and infrared serial port facilitate real-time monitoring and troubleshooting of relay operations and network connectivity.
