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2025-11-20 BY jonson

B&R AO352 | Precision Control Signal Output Module

Product Overview

The B&R AO352represents a high-precision analog output module within B&R’s X20 system family,designed for industrial automation applications requiring accurate analog signal generation.This sophisticated output module provides two independent analog output channels with exceptional resolution and accuracy,making it ideal for controlling actuators,drives,and other analog-controlled devices in process and machine automation.The B&R AO352features seamless integration into the X20 system backplane,ensuring high-speed data transfer and precise synchronization with other system components.With its robust industrial design and advanced signal conditioning technology,this analog output module delivers reliable performance in demanding industrial environments where signal accuracy and stability are critical for process quality and equipment performance.

As a specialized signal output component,the B&R AO352supports various output signal types including voltage and current outputs,providing flexibility for different application requirements.The module incorporates high-resolution digital-to-analog converters that ensure precise signal generation with minimal drift over time and temperature variations.The B&R AO352demonstrates excellent noise immunity characteristics,maintaining signal integrity even in electrically noisy industrial environments.The module’s compact design and pluggable terminal connectors facilitate easy installation and maintenance while maximizing space utilization in control cabinet configurations.

The implementation of B&R AO352enhances system control capabilities through its precise analog signal generation and comprehensive diagnostic features.The module provides detailed status information and fault detection capabilities,enabling proactive maintenance and rapid troubleshooting.With its wide operating temperature range and high immunity to electrical interference,the B&R AO352ensures reliable operation in various industrial applications,contributing to improved process control accuracy and system reliability.

Technical Specifications

Parameter Name

Parameter Value

Product Model

AO352

Manufacturer

B&R Industrial Automation

Product Type

Analog Output Module

Series

X20 System

Channels

2 independent channels

Output Types

Voltage:0-10V,±10V;Current:0-20mA,4-20mA

Resolution

16-bit

Accuracy

±0.1%of full scale

Update Rate

1ms per channel

Load Capacity

Voltage:≥2kΩ;Current:≤500Ω

Isolation

Channel-to-channel and channel-to-backplane

Power Supply

24V DC via backplane

Operating Temperature

0°C to+60°C

Storage Temperature

-40°C to+85°C

Connection

Pluggable terminal connectors

Dimensions

12.5mm width(single module)

Certification

CE,UL,cULus

Main Features and Advantages

High-precision signal output:The B&R AO352delivers exceptional analog output accuracy with 16-bit resolution and±0.1%full-scale accuracy,ensuring precise control of analog devices and processes.The module supports multiple output ranges including 0-10V,±10V voltage outputs and 0-20mA,4-20mA current outputs,providing flexibility for various application requirements.The high update rate of 1ms per channel enables rapid response to control system demands,making the module suitable for dynamic control applications.The B&R AO352maintains excellent long-term stability with minimal drift,ensuring consistent performance over extended operational periods.

Advanced isolation and protection:A key advantage of the B&R AO352is its comprehensive isolation design that provides electrical separation between channels and between channels and the backplane.This isolation prevents ground loops and minimizes interference,ensuring signal integrity in noisy industrial environments.The module incorporates protection features including short-circuit protection,overvoltage protection,and reverse polarity protection,safeguarding both the module and connected field devices.The robust design ensures reliable operation even in challenging electrical conditions.

16-bit high-resolution output

Dual-channel independent operation

Channel-to-channel isolation

Multiple output ranges supported

Comprehensive protection features

Easy integration and diagnostics:The B&R AO352features seamless integration with the X20 system backplane,providing automatic configuration and parameterization.The module’s pluggable terminal connectors simplify wiring and reduce installation time.Comprehensive diagnostic capabilities include channel status monitoring,wire break detection,and overload indication,facilitating quick troubleshooting and maintenance.

Application Field

The B&R AO352finds extensive application in industrial automation systems requiring precise analog control signals.In process control applications,the module provides control signals to regulating valves,variable frequency drives,and proportional controllers,ensuring accurate process parameter control.The high accuracy and stability of the B&R AO352make it suitable for critical control loops in chemical processing,pharmaceutical manufacturing,and food processing industries where precise analog control is essential for product quality and process safety.

In machine automation,the B&R AO352controls analog actuators,hydraulic proportional valves,and tension control systems.The module’s fast update rate and high resolution enable precise motion control and force regulation in applications such as web handling,winding machines,and press control systems.In test and measurement systems,the analog output module provides precise stimulus signals for equipment calibration and functional testing.

Process control valve positioning

Variable frequency drive control

Motion control system analog interface

Test and measurement equipment

The B&R AO352is also widely used in energy management systems for controlling power electronics,in building automation for HVAC control,and in research applications requiring precise analog signal generation.The module’s versatility and reliability make it suitable for both OEM machine building and system integration projects across various industries.

Installation and Maintenance

Installation guidelines:When installing the B&R AO352,ensure proper module seating in the X20 system baseplate and secure locking of the module lever.Use appropriate wire gauges for analog output connections and follow manufacturer recommendations for cable routing and shielding.The analog output cables should be separated from power cables and high-frequency noise sources to maintain signal quality.Proper grounding practices should be followed to minimize ground loops and electrical interference.

Maintenance recommendations:Regular maintenance of the B&R AO352includes verifying output accuracy through calibration checks,inspecting terminal connections for tightness,and monitoring module status indicators.The module’s diagnostic functions should be utilized for proactive maintenance,with attention to any fault indications.Periodic calibration verification ensures long-term accuracy,particularly in critical control applications.

Product Guarantee

We guarantee that all B&R AO352analog output modules are genuine B&R products manufactured to original specifications and subjected to comprehensive performance testing.Our commitment includes verification of output accuracy,signal stability,and isolation integrity to ensure reliable operation in industrial environments.We provide technical support from automation specialists familiar with the X20 system to assist with configuration and application optimization.For the AO352,we offer standard warranty coverage with options for extended support,backed by our inventory management that ensures prompt availability for both new projects and maintenance requirements.Our quality assurance process includes testing of all output ranges and load conditions,ensuring that each module meets specified performance standards before shipment.

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