The GE IS220PAICH1B is an analog input/output pack used in the Mark VI Speedtronic control platform. As a functional revision of the earlier IS220PAICH1, this B‑rated version offers improved performance and updated electrical requirements, operating from a minimum of 22.5 VDC with typical supplies of 24–28 VDC. It integrates seamlessly with IS200‑series terminal boards and supports reliable analog signal acquisition and output in turbine control environments.
Technical Specifications
Specification
Value
Model
IS220PAICH1B
Module Type
Analog Input/Output Module
Manufacturer
GE
Product Range
EX2100 / Mark VI
System
DCS
Dimensions
12.8 × 8.2 × 6 cm
Weight
0.38 kg
HS Code
8537101190
Origin
USA
Operating Voltage
Minimum 22.5 VDC (nominal 24–28 VDC)
Compatible Terminal Boards
IS200TBAIH1C, IS200TAIH1A, IS200TAIH2A
Wire Size Requirement
≥22 AWG (with TBAIH1C)
Functional Revision
B‑rated
Alarm Features
82–83 alarm for output/suicide relay issues
Certifications
UL E207685 (non‑hazardous locations)
Condition
Brand New
MOQ
1
Functional Description
The IS220PAICH1B module handles both analog input and output processing within Mark VI turbine control systems. It includes:
A processor board
A turbine‑specific control board
An analog acquisition board
These internal components manage signal conditioning, command execution, and diagnostic monitoring. The module supports auto‑reconfiguration, allowing firmware and parameter downloads directly from the controller when enabled in Toolbox ST.
The built‑in 82–83 alarm helps identify output‑related issues such as mismatched commands, relay failures, or acquisition‑board faults. In most cases, replacing the I/O pack resolves the condition.
