IS220PDOAH1A DISCRETE OUTPUT PACK

Description

Overview

Essential details：IS220PDOAH1A DISCRETE OUTPUT PACK

DESCRIPTION

Functional Description

IS220PDOAH1A is a discrete output pack developed by GE. It is part of the GE Speedtronic Mark VIe gas turbine control system. It connects one or two I/O Ethernet networks to a discrete output terminal board via an electrical interface. The pack includes a processor board shared by all Mark VIe distributed I/O packs as well as an acquisition board dedicated to the discrete output function.

Features

• The number of relay channels in a single PDOA pack is 12 relays (different types depending on the terminal board)
• 15-pack inputs are monitored by a relay and a coil. The type of terminal board used, as determined by the ID chip, influences the selection of monitor feedbacks.
• The I/O pack response time is approximately 6 ms from Ethernet command to output.
• The pack can control up to 12 relays and accepts feedback from the terminal board. There are magnetic relays (TRLYH1B, C, D, and F terminal boards) and solid-state relays (TRLYH1E boards) available. The pack is powered by three-pin power input and two RJ45 Ethernet connectors. Output is via a DC-37 pin connector that is directly connected to the associated terminal board connector. Indicator LEDs provide visual diagnostics, and an infrared port allows for local diagnostic serial communications.

IS220PDOAH1A

Product parameter

APPLICATION

Compatibility

It works with six different types of discrete (relay) output terminal boards, including TRLY and SRLY boards, but not DIN-rail mounted DRLY boards. The number of I/O packs used in a signal path is referred to as the control mode:

• Simplex employs a single I/O pack and one or two network connections.
• Dual employs two I/O packs with one or two network interfaces.
• TMR employs three I/O packs, each with one network connection.

Installation

Installing the PDOA pack:

• Securely mount the terminal board of choice.
• Insert one simplex PDOA I/O pack or three TMR PDOA I/O packs directly into the terminal board connectors.
• Use the threaded studs next to the Ethernet ports to mechanically secure the packs. The studs fit into a terminal board-specific mounting bracket. The bracket should be positioned so that no right-angle force is applied to the DC37 connector between the pack and the terminal board. The adjustment should only be needed once during the product’s lifetime.
• Depending on the system configuration, connect one or two Ethernet cables. The pack will work with either port. When using dual connections, it is common practice to connect ENET1 to the network associated with the R controller.
• Connect the pack to power by plugging in the connector on the pack’s side. This connector does not need to be inserted with the power disconnected from the cable because the I/O pack has an inherent soft-start capability that controls current inrush on power application.
• Configure the I/O pack as required.

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