GE IS220PAICH1B
GE IS220PAICH1B - Image 2

GE IS220PAICH1B

Product Overview The IS220PAICH1B is an Analog Input/Output Pack designed for the Mark VIe distributed control system. It provides high-resolution analog signal interface for process variables such as temperature, pressure, flow, and position measurements.

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Category: SKU: GE IS220PAICH1B

Description

GE IS220PAICH1B 

Technical Specifications

Parameter Specification
Function Analog Input/Output Interface
System Compatibility Mark VIe I/O Pack
Input Channels Multiple analog inputs (4-20mA, 0-10V, thermocouple, RTD)
Output Channels Multiple analog outputs (4-20mA, 0-10V)
A/D Resolution 16-bit or higher
D/A Resolution 16-bit or higher
Isolation Channel-to-channel and channel-to-ground isolation
Update Rate < 10ms for all channels
Accuracy ±0.1% of full scale typical
Field Power 24V DC loop power supply
Operating Temperature -30°C to 65°C (-22°F to 149°F)
Storage Temperature -40°C to 85°C (-40°F to 185°F)
Humidity 5% to 95% non-condensing
Enclosure IP20, DIN rail mountable

Functional Features

  • Multi-Range Inputs: Software-configurable input ranges for various sensor types

  • Loop Power Supply: Provides 24V DC excitation for 2-wire transmitters

  • Linearization: Built-in thermocouple and RTD linearization tables

  • Cold Junction Compensation: Automatic compensation for thermocouple inputs

  • Broken Wire Detection: Detects open circuit conditions on 4-20mA inputs

  • Output Hold: Maintains last output value on communication failure

  • HART Protocol Support: Enables communication with smart field devices

Structural Characteristics

  • Compact DIN rail mountable enclosure
  • Removable terminal blocks for easy wiring
  • LED status indicators for each channel
  • Ruggedized design for harsh industrial environments
  • Conformal coated PCB for moisture and chemical resistance

Working Principle The I/O pack receives analog signals from field sensors and transmitters. Each input channel includes signal conditioning, isolation, and analog-to-digital conversion. The digital values are transmitted to the control processor via the IONet or Ethernet network. For outputs, the pack receives digital values from the processor, converts them to analog signals via digital-to-analog converters, and drives field actuators such as control valves or variable speed drives.

Installation Requirements

  • Mount on DIN rail in control cabinet
  • Connect field wiring to removable terminal blocks
  • Configure input types and ranges using system software
  • Ensure proper shield grounding for analog signals
  • Maintain separation between analog signal cables and power cables

Application Scenarios

  • Process variable monitoring (temperature, pressure, level, flow)
  • Control valve position feedback and command
  • Variable speed drive analog references
  • Environmental monitoring systems
  • Auxiliary system control in power plants

Usage Precautions

  • Verify correct input range configuration before applying signals
  • Ensure proper grounding to avoid ground loop errors
  • Do not exceed rated input voltages
  • Use shielded cables for low-level signals
  • Regular calibration verification recommended

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