Micro Innovation CAN-4AI/UI Analog Input Module

The Micro Innovation CAN-4AI/UI is a four channel analog input module designed for CANopen networks. It captures voltage and current signals from sensors and transmitters and makes the measured values available to the control system. The module is used in automation applications where process values must be measured accurately and continuously.

Analog signals carry information about temperature, pressure, flow, level, position, and other process values. Capturing these values reliably is essential for closed loop control, quality monitoring, and process documentation. The CAN-4AI/UI is built to perform this task in industrial environments.

Product Overview

The CAN-4AI/UI is a compact module for control cabinet mounting. Its four input channels support voltage and current signals, allowing different sensor types to be connected to the same unit. This flexibility reduces the number of module variants required in a machine and simplifies spare parts planning.

The module communicates over CANopen and transfers measured values to the controller at a high update rate. This ensures that the control program always works with current data.

Key Features

• Four analog input channels in one compact module

• Support for voltage and current signal types

• CANopen communication for industrial control

• High resolution conversion for accurate measurement

• Stable readings in electrically noisy environments

• Front panel status indication for diagnostics

• Compact format for control cabinet installation

• Identified by model CAN-4AI/UI

Measurement Performance

The module uses analog to digital conversion circuitry that provides the resolution needed to detect small changes in the measured quantity. Filtering and shielding measures reduce the effect of electrical noise. Each channel is calibrated so that the digital value corresponds accurately to the input signal.

Scaling is configured in the engineering environment so that measured values can be displayed in engineering units. This makes the data easier to use in control logic and operator displays.

Applications

The CAN-4AI/UI is used in process systems, packaging machinery, material handling equipment, and environmental control. In process systems, it reads temperature sensors, pressure transmitters, and flow meters. In packaging, it monitors sealing temperature and film tension. In material handling, it measures load and position.

Because the module supports both voltage and current signals, it can be used with a wide range of industrial sensors.

System Integration

Integration begins with mounting the module and connecting the sensor wiring to the input terminals. The CANopen network links the module to the controller, which recognizes the device and makes its channels available in the programming environment. Engineers assign symbolic names and scaling values to each channel.

Diagnostic information helps identify sensor and wiring problems. If a channel reports a value outside the expected range, the technician can check the sensor, the cable, and the module in a logical order.

Installation Notes

Correct installation improves measurement quality. Analog signal cables should be shielded and routed away from power cables. Shields should be connected according to the system guidelines, and the module should be mounted with sufficient clearance for air circulation.

Maintenance

The module has no moving parts, so maintenance is mainly preventive. Terminal connections should be checked periodically, and dust should be removed from the module surfaces. If a channel drifts or fails, the diagnostic data helps determine whether the sensor, the wiring, or the module is responsible.

Why Choose the CAN-4AI/UI

The Micro Innovation CAN-4AI/UI provides accurate, stable, and well diagnosed analog signal acquisition. Its four configurable channels, CANopen communication, and compact format make it a practical solution for machines that require dependable process measurement.

Frequently Asked Questions

How many analog inputs does the module have?

It provides four analog input channels.

What signal types are supported?

It supports voltage and current signals.

What network does it use?

It communicates over CANopen.

Where is it used?

It is used in process, packaging, material handling, and environmental systems.

Conclusion

The Micro Innovation CAN-4AI/UI analog input module delivers accurate measurement and flexible integration for industrial automation. Its four channels, CANopen communication, and clear diagnostics make it a reliable choice for process and machine control applications.