GE IS220PAOCH1A Analog Output Module for Mark VIe Turbine Control

The GE IS220PAOCH1A is an Analog Output Module part of the Mark VIe series, designed for gas turbine control systems. It serves as an electrical interface between 1-2 Ethernet I/O networks and analog output terminal boards, integrating a BPPx processor board and a dedicated analog output acquisition board.

• Analog Output Capabilities: 8 high-compliance 0-20 mA outputs with 16-bit DACs; each output includes a mechanical relay for enable/disable control, with LEDs indicating relay status.
• Feedback & Diagnostics: Current feedback via 16-bit ADCs and 50Ω terminal board resistors; self-tests check processor hardware, Ethernet, power supplies, and hardware-code matching. Internal temperature sensors trigger alerts for overheating.
• Connectivity & Installation: Dual RJ45 Ethernet ports for redundant communication, a 3-pin power input, and a DC-37 pin connector for terminal board links. Soft-start power allows hot-plugging; mounts via terminal board brackets to avoid connector stress.
• Compatibility: Works with TBAOH1C and STAOH1A/H2A terminal boards; supported by ControlST V04.06+ and configurable via ToolboxST. Operates in -40 to 70°C with derating based on output configurations.
• Alarm Management: Addresses out-of-range outputs/feedback or hardware faults by verifying commands, checking wiring, or replacing faulty boards/packs to ensure reliable turbine control.