07AI91 I/O module

Description

ABB 07AI91 Product Introduction:

ABB 07AI91 is an analog I/O module tailored for distributed automation systems. It has 8 configurable input channels that can be set to support various signal types. These include J, K, and S-type thermocouples, RTDs such as PT100 and PT1000, as well as various ranges of voltage and current signals.

This module interfaces seamlessly with the CS31 slave fieldbus, allowing for smooth communication within industrial automation setups. It operates on a 24V DC power supply, providing stable power for consistent performance. In terms of its place in the automation stack, the 07AI91 sits at the front – end of the control system, collecting analog data from sensors and converting it into a format that can be easily processed by the main control unit. It also has built – in capabilities to handle signal conditioning and pre – processing, ensuring that the data sent to the control system is accurate and reliable.

Technical specifications:
Model: 07AI91
Brand: ABB
Type: Analog Input/Output Module
Input voltage: 24V DC
Working temperature range: Working temperature: 0 ° C to+55 ° C; Storage: -25 ° C to+75 ° C
Installation method: DIN rail (TH35-15, TH35-7.5) in accordance with IEC 60715 standard
Size: 152 × 100 × 125 millimeters
Weight: 0.48 kilograms
Interface/Bus: CS31 slave station, RS-485 communication
Compliance: CE, CSA, GL, DNV, ABS, etc
Supported protocols: N/A (but interfaces well with common industrial settings)

Contact Us
Phone:+86 16626708626
WeChat/WhatsApp:+86 16626708626
Email: 3772179818@qq.com

Application areas:
ABB 07AI91 is widely used in multiple industries. In the manufacturing industry, it is used to monitor and control the production process. For example, in automobile manufacturing plants, it can be used to measure the temperature of machinery during high-speed production processes, ensuring that equipment operates within the optimal temperature range to prevent malfunctions. ​
In the energy industry, especially in power plants, 07AI91 is used to monitor key parameters such as steam temperature, pressure, and turbine vibration. By accurately processing these simulated signals, power plant operators can ensure efficient power generation and prevent costly equipment failures. ​
In the process industry, just like in water treatment plants, this module is used to measure flow rate, pH value, and chemical concentration. The ability of 07AI91 to handle various analog inputs makes it an ideal choice for such applications, where precise monitoring and control are crucial to ensure the quality of treated water.

Main features and advantages:
ABB 07AI91 is designed specifically for long-term performance and reliability. Its 12 bit+symbol resolution ensures high-precision measurement, which is crucial for maintaining product quality in the manufacturing industry and optimizing processes in the power generation and chemical industries. ​
The flexibility of this module in handling multiple signal types reduces the need for multiple dedicated input modules, thereby reducing costs and simplifying system design. This easy integration into existing systems also reduces engineering costs. With its ability to operate over a wide temperature range, it can be deployed in various industrial environments without worrying about performance degradation. The IP20 protection level of 07AI91 further enhances its durability in typical industrial environments, ensuring that it can withstand normal levels of dust and accidental contact, thereby minimizing maintenance requirements.

Related products:
ABB 07AC91– an analog I/O module similar to 07AI91, but specifically designed for handling AC inputs, which is very useful in more common applications of AC based sensors or devices. ​
ABB AMC-DC DCS thyristor power converters – These converters are part of ABB’s industrial control product line, so they are related. They can be used in conjunction with 07AI91 for systems that require series power conversion and analog input processing, such as in some high-power industrial settings. ​
ABB AI810- Another analog input module that provides different channel configurations or additional features. For applications that require different numbers of input channels or higher level signal processing capabilities, it may be an alternative solution.

Installation and maintenance:
Before installing ABB 07AI91, it is necessary to verify the compatibility of the fieldbus interface with the existing control system. Ensure that the 24V DC power supply in the target system can provide stable power to the module. In addition, check the installation position of the DIN rail to ensure it complies with the IEC 60715 standard and has sufficient space for proper installation. ​
For continuous maintenance, regularly check the module for any signs of physical damage. Check the connection of the input line to ensure it is secure and free from corrosion, as loose or corroded connections can result in inaccurate signal readings. Monitor the operating temperature of the module to ensure it remains within the specified range. Regularly calibrate and check the input channels to maintain the accuracy of analog signal processing.

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