ABB 07AI91 GJR5251600R0202 input module

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ABB 07AI91 GJR5251600R0202

Product Name: ABB 07AI91 Analog Input Module
Part Number: GJR5251600R0202
System Series: ABB Advant Controller 31 (AC31) / Advant OCS
Module Type: Analog I/O Module (Remote Analog Input Unit)

Product Overview

The ABB 07AI91 (GJR5251600R0202) is an analog input module designed for the ABB Advant Controller 31 (AC31) automation system. It provides 8-channel analog signal acquisition and communicates through the CS31 fieldbus system. The module is used for collecting analog signals from industrial sensors such as temperature transmitters, voltage/current sensors, thermocouples, and resistance temperature detectors (RTDs).

Technical Specifications

Parameter	Description
Manufacturer	ABB
Model	07AI91
Order Number	GJR5251600R0202
Product Type	Analog Input Module
System	Advant Controller 31 (AC31)
Communication Interface	CS31 Bus (Slave)
Number of Inputs	8 Analog Inputs
Power Supply	24 VDC
Resolution	12-bit + sign
Wiring	1-wire / 3-wire connection
Protection Class	IP20
Operating Temperature	0…+55 °C
Storage Temperature	-25…+75 °C
Weight	Approx. 0.5 kg

Supported Input Signals

The ABB 07AI91 supports multiple analog input types, including:

• Thermocouple inputs:
  • Type J
  • Type K
  • Type S
• RTD temperature sensors:
  • PT100
  • PT1000
• Voltage inputs:
  • ±50 mV
  • ±500 mV
  • ±5 V
  • ±10 V
• Current input:
  • 0…20 mA (with external resistor)

Application Areas

ABB 07AI91 analog modules are commonly used in:

• Process automation systems
• Manufacturing production lines
• Machine control systems
• Temperature monitoring applications
• Industrial measurement and control systems
• Building automation
• Power and energy management systems

Key Features

• 8-channel analog signal acquisition
• Supports temperature, voltage, and current measurement
• High compatibility with ABB AC31 controllers
• CS31 bus remote I/O communication
• Compact modular industrial design
• Suitable for legacy ABB automation system maintenance and replacement

Conclusion

The ABB 07AI91 GJR5251600R0202 is a reliable 8-channel analog input module for ABB AC31 automation platforms. It remains widely used in industrial applications where existing Advant Controller 31 systems require maintenance, expansion, or replacement of analog input modules.