GE IS220PDIOH1B Discrete I/O Pack Mark VIe Turbine Control

Product Overview

The General Electric IS220PDIOH1B is a Discrete I/O pack. It belongs to the Mark VIe series. This unit extends standard PDIO pack functionality. It works with two accessory terminal boards. The pack features a local processor and data acquisition board. Its base PCB has a conformal coating for protection. This coating guards against daily wear and tear. The unit is a marked improvement over earlier Mark series versions. Those older versions were limited to steam and gas turbines. This pack works with wind turbines too.

Application Scenarios

This I/O pack is for turbine automation drive assemblies. It manages wind, steam, and gas turbines. The unit uses patented Speedtronic control technology. Speedtronic was introduced with the Mark I in the 1960s. This pack is one of the final GE Mark series products. It is approved for hazardous locations with proper accessories. The terminal boards are labeled as Intrinsically Safe Apparatus. This makes it suitable for demanding industrial environments.

Technical Specifications

The unit has a nominal voltage rating of 28.0 VDC. Its minimum voltage rating is 27.4 VDC. Contact voltage outputs are 32.0 Vdc. The ambient temperature rating is -30 to +65 degrees Celsius. Dimensions are 4.5 x 3.5 x 2.25 inches. It weighs less than 2 lbs. The shipping weight is 2.5 lb. It has two Ethernet ports. Front panel LEDs show power and Ethernet status. An "attn" LED and relay LEDs are also present. The chassis style is vented.

Installation & Maintenance Guide

Follow specific field wiring instructions for the unit. Wire size and screw torque are critical. Use the correct TDBS or TDBT terminal boards. These boards provide twenty-four field terminals. All positive terminals are contact-wetting inputs. Negative terminals differ from positive terminals. Refer to the datasheet for exact details. The PCB coating helps with daily maintenance. This coating reduces the risk of damage during handling.

Packing List

One GE IS220PDIOH1B Discrete I/O pack is included. Associated terminal boards are sold separately. Examples include ISx0yTDBSH2A and ISx0yTDBTH2A. Please verify all components before installation. Proper packing ensures safe transit.