GE IS420YAICS1B Analog I/O Pack

Series: Mark VIe
Functional Abbreviation: YAIC
Part Number: IS420YAICS1B
Manufacturer: General Electric
Product Type: Analog I/O Pack

Technical Specifications

Overview

The IS420YAICS1B is an Analog I/O Pack developed by General Electric for integration within the Mark VIe Turbine Control System Series. It provides a critical interface between analog input signals and the system’s Ethernet network, enabling reliable and precise signal acquisition.

Key Features and Functionality

• Modular Assembly:
  Designed for use in wind, gas, and steam turbine systems that utilize GE’s Mark VIe control architecture.

• Dual Ethernet Interface:
  Features two RJ45 Ethernet ports, enabling communication over redundant networks.

• Analog Input Support:

• Supports up to 10 analog inputs

• 2 inputs configurable as ±1 mA or 4–20 mA current input

• 8 inputs configurable as ±5 V, ±10 V, or 4–20 mA loop inputs

• High Resolution Signal Processing:
  Incorporates a 16-bit ADC for accurate analog data acquisition.

Hardware Composition

The IS420YAICS1B pack includes:

1. Common Processor Board (BPPC)

2. Data Acquisition Board

• Performs signal conversion

• Manages all diagnostic and fault detection tasks independently

Terminal Board Compatibility

This module connects with the following Mark VIe terminal boards:

• TBAISIC

• STAIS2A

These boards support signal wiring and are part of the Mark VIe’s modular architecture.

Redundancy Application

• Supported Configurations:

• Simplex Mode: 1 I/O pack

• Triple Modular Redundancy (TMR): 3 I/O packs required

• Unsupported in Dual Redundancy Applications

Mark VIe Series Context

• Advanced Turbine Control:
  The Mark VIe series is used for comprehensive management of wind, gas, and steam turbines.

• Part of GE’s Speedtronic Lineage:
  As one of the latest iterations, the Mark VIe system retains Speedtronic legacy technology while introducing modern enhancements.