GE IS220PAICH1A 336A4940CSP3 Analog I/O Pack | Mark VIe Module

Product Description

Overview
The IS220PAICH1A 336A4940CSP3 is a precision analog I/O module designed for GE Mark VIe turbine control systems. It acts as the interface between digital control networks (IONet) and analog field signals, converting sensor inputs into high-resolution digital data and generating precise analog outputs for turbine actuators and instrumentation.

System Integration
This module mounts onto compatible analog terminal boards such as STAI or TBAI. It combines a standard Mark VIe processor board with a dedicated analog acquisition board, enabling accurate signal processing for industrial gas and steam turbine operations. Dual 10/100 Mbps Ethernet ports support redundant IONet connections for continuous operation.

Key Features

Flexible Analog Inputs

• 10 input channels configurable via software:

• Channels 1–8 support ±5 V, ±10 V, or 4–20 mA

• Channels 9–10 support ±1 mA or 4–20 mA

• High-resolution 16-bit A/D conversion with ±0.1% full-scale accuracy

• Input scan rate: 1 ms typical

Reliable Analog Outputs

• Two 0–20 mA outputs with closed-loop feedback for precise device control

• Outputs drive positioners, indicators, and other field devices

• Monitored for accuracy and system integrity

Fault-Tolerant Operation (SIFT)

• Supports Simplex, Dual, and TMR (Triple Modular Redundant) configurations

• Controller-level voting eliminates single points of failure in critical applications

Diagnostics & Monitoring

• Built-in self-checks, including high/low limit detection and watchdog timer

• Status LEDs: Power (PWR), Attention/Fault (ATTN), Ethernet Link/Activity

• Continuous monitoring of field wiring integrity

Rugged Industrial Design

• Operating temperature: -30°C to +65°C (-22°F to 149°F)

• G3 conformal coating for resistance to moisture, chemicals, and salt

• Certified for Class I, Division 2 hazardous locations (Groups A, B, C, D)

• Compact form factor: 90 mm × 70 mm × 25 mm, weight: 200 g

• Mounts on DIN rails, IP20 protection

Applications

• Industrial automation monitoring: temperature, pressure, flow control

• Energy sector: turbine, boiler, and substation process monitoring

• Manufacturing: steel, chemical, and process control environments

• Oil and gas: pipeline and facility monitoring

Technical Specifications

FAQ

Q: What does the IS220PAICH1A module do?
A: It converts analog field signals into digital data and generates analog outputs for turbine actuators and instrumentation, providing high-precision I/O for Mark VIe systems.

Q: How many analog inputs and outputs are supported?
A: The module has 10 configurable input channels and 2 analog output channels.

Q: Can this module operate in hazardous locations?
A: Yes, it is certified for Class I, Division 2 (Groups A, B, C, D) environments.

Q: How does it differ from the H2 version?
A: The H1A version does not provide 0–200 mA high-current outputs; ensure your actuator requirements match this specification.

Q: Is it compatible with redundant network setups?
A: Yes, dual Ethernet ports allow connection to redundant IONet networks for continuous operation.