Category: Industry trends

Product Overview

The**ABB AO2000 LS25**is a high-performance 4-channel analog output module designed to serve as a critical interface between industrial control systems(such as ABB’s AC 800M DCS and AC 500 PLC)and field actuators.Engineered to convert digital control signals from the host system into precise continuous analog signals,this module enables accurate control of process equipment—including control valves,variable frequency drives(VFDs),and dampers—in critical applications such as power generation,petrochemical processing,and manufacturing.

Featuring channel-to-channel isolation,high linearity,and a rugged industrial design,the**ABB AO2000 LS25**is built to withstand the harsh conditions of industrial environments—including electromagnetic interference(EMI),voltage transients,and extreme temperature fluctuations.Each of its 4 channels supports standard analog output signals(4-20mA,0-10V),offering flexible configuration to match diverse actuator types and process requirements.The module’s 16-bit resolution and fast response time ensure precise and timely control,critical for maintaining process stability and optimizing industrial operations.

Seamlessly integrated with ABB’s automation ecosystem and configurable via Control Builder M software,the**ABB AO2000 LS25**simplifies system setup and maintenance.It supports advanced diagnostic features,including short-circuit protection,overcurrent detection,and signal drift monitoring,enabling predictive maintenance and minimizing unplanned downtime.The module’s compatibility with ABB’s System 800xA platform further enhances its versatility,facilitating centralized monitoring and control of analog output performance across industrial facilities.

Technical Specifications

Parameter Name

Parameter Value

Product Model

ABB AO2000 LS25

Manufacturer

ABB

Product Type

4-Channel Industrial Analog Output Module

Number of Channels

4 Independent Channels(Configurable per Signal Type)

Supported Output Signals

4-20mA DC(Sink/Source),0-10V DC,±5V DC

Output Load Capacity

4-20mA:Up to 600Ω;Voltage Signals:Min 1kΩ

Resolution

16 Bits

Accuracy

±0.05%of Full Scale(at 25℃);±0.1%of Full Scale(Operating Temperature Range)

Response Time

≤1ms(90%Step Response)

Isolation

Channel-to-Channel:500V DC;Module-to-Backplane:2500V DC;Signal-to-Ground:1000V DC

Communication Interface

ABB AC 800M DCS Backplane,PROFINET

Power Supply

24V DC(18-30V DC)from DCS Backplane;Redundant Power Supported

Power Consumption

Typical:4W,Maximum:6W

Operating Temperature

-20℃to 60℃

Humidity Range

5-95%RH(Non-Condensing,No Dew)

Protection Rating

IP20(Front&Rear Panels)

Vibration Resistance

5-150Hz,1g(IEC 60068-2-6)

Shock Resistance

15g(11ms Duration,IEC 60068-2-27)

Mounting Type

AC 800M DCS Rack Mount(3U Height),35mm DIN Rail Compatible

Dimensions(W×H×D)

100mm×130mm×210mm

Weight

0.7kg

Diagnostic Features

Short-Circuit Protection,Overcurrent Alerts,Power Fault Monitoring,Signal Drift Detection,LED Status Indicators

Certifications

CE,UL,CSA,ATEX Zone 2,IECEx,CCC

Main Features and Advantages

High-Precision Signal Conversion:The**ABB AO2000 LS25**features 16-bit resolution and±0.05%full-scale accuracy,ensuring the digital control signals from the DCS/PLC are converted into precise analog outputs.This level of precision is critical for applications such as control valve positioning in petrochemical plants and VFD speed control in power generation,where small signal variations can directly impact process efficiency and product quality.The module’s fast response time(≤1ms)ensures it adapts quickly to changes in the host system’s control signals,maintaining real-time process control.

Robust Isolation and EMI Protection:Each channel of the**ABB AO2000 LS25**is isolated from other channels and the DCS backplane(2500V DC module-to-backplane isolation),effectively preventing electromagnetic interference(EMI)and ground loops—common issues in industrial environments with high electrical noise(e.g.,near large motors or transformers).Compliance with IEC 61000-4 EMC standards further enhances its reliability,ensuring stable output signals even in harsh electrical conditions.This isolation also protects the host control system from voltage transients originating from field actuators.

Flexible Configuration and Seamless Integration:Designed exclusively for ABB’s automation ecosystem,the**AO2000 LS25**integrates seamlessly with the AC 800M DCS and AC 500 PLC via the standard backplane,eliminating the need for custom adapters.It is configurable via ABB’s Control Builder M software,allowing users to set signal types(4-20mA,0-10V)per channel,adjust output ranges,and enable diagnostic alerts.The software also supports calibration and self-test routines,simplifying maintenance and ensuring long-term performance consistency.

Advanced Diagnostic and Protection Features:The module includes built-in short-circuit protection and overcurrent detection for each channel,preventing damage to the module and field actuators in case of wiring faults.It also monitors for power fluctuations and signal drift,transmitting diagnostic alerts to the host DCS/PLC and HMI panels(e.g.,ABB CP405 A0)for timely troubleshooting.Clear LED status indicators on the front panel provide at-a-glance verification of channel health(normal,fault,power),simplifying on-site maintenance.

Redundant Power and High Reliability:Supporting redundant 24V DC power input from the DCS rack,the**ABB AO2000 LS25**ensures continuous operation even if one power supply fails—critical for mission-critical applications such as nuclear power plant control or oil pipeline monitoring.Its industrial-grade components and rugged design enable reliable performance in extreme temperatures(-20℃to 60℃)and high-humidity environments,while a long Mean Time Between Failures(MTBF)rating minimizes maintenance costs and unplanned downtime.

Application Field

In power generation plants(thermal,hydro,wind),the**ABB AO2000 LS25**is used to control critical actuators such as turbine governor valves,boiler feedwater valves,and damper controls.It converts digital control signals from the AC 800M DCS into 4-20mA signals to adjust valve positions,ensuring precise control of steam flow and turbine speed.The module’s high accuracy and fast response time are essential for maintaining grid stability and preventing turbine overspeed events.

In the oil&gas and petrochemical industries,the module controls process valves,pumps,and heat exchangers in refineries,offshore platforms,and pipeline operations.It provides 4-20mA signals to position control valves for regulating pressure,temperature,and flow in distillation columns and chemical reactors.Its ATEX Zone 2 certification allows safe operation in hazardous areas with flammable vapors,while the robust isolation ensures reliable performance despite electrical noise from compressors and pumps.

In manufacturing and automotive industries,the**ABB AO2000 LS25**controls variable frequency drives(VFDs)for conveyor systems,robotic arm actuators,and welding equipment.It sends 0-10V or 4-20mA signals to adjust motor speed and positioning,ensuring consistent production quality.In automotive assembly plants,the module integrates with the AC 500 PLC to control robotic welding parameters,such as torch position and pressure,enhancing process repeatability and reducing defects.

In water and wastewater treatment facilities,the module controls chemical dosing pumps,filtration system valves,and aeration blowers.It converts DCS control signals into analog outputs to adjust pump speed(controlling chemical dosage)and valve positions(regulating water flow through filters).The module’s diagnostic features help detect faults in dosing pumps,ensuring compliance with environmental regulations and preventing over-dosage of chemicals.

Related Products

-ABB AC 800M:DCS controller that integrates the AO2000 LS25 module for centralized process control and signal output.

-ABB CP405 A0 1SAP500405R0001:HMI panel that displays status and fault alerts from the AO2000 LS25 module.

-ABB UAD142A01 3BHE012551R0001:Analog input module that works with the AO2000 LS25 to form a complete I/O loop.

-ABB Control Builder M:Configuration software for setting up the AO2000 LS25 module and integrating it with ABB DCS/PLC.

-ABB System 800xA:Automation platform that aggregates data from the AO2000 LS25 for enterprise-wide monitoring.

-ABB VFD ACS580:Variable frequency drive controlled by the AO2000 LS25’s analog output signals.

-ABB TB830 Terminal Block:Terminal block for wiring the AO2000 LS25 to field actuators and the DCS backplane.

-ABB F800 Surge Protector:Accessory for protecting the AO2000 LS25 from voltage spikes in actuator wiring.

Installation and Maintenance

Pre-installation preparation:Before installing the**ABB AO2000 LS25**,verify compatibility with the target DCS/PLC(requires AC 800M firmware version 5.0+or AC 500 PLC firmware version 3.0+)and confirm the installation environment meets temperature(-20℃to 60℃)and humidity(5-95%RH)requirements.Ensure the DCS rack is powered off and follow lockout/tagout(LOTO)procedures to prevent electrical hazards.Gather tools including a torque screwdriver(0.5-0.8 N·m),wire strippers,a precision multimeter,and a laptop with Control Builder M software.

Mounting and wiring:Insert the module into an empty slot in the AC 800M DCS rack or secure it to a 35mm DIN rail using the optional bracket,then fasten with locking screws.Connect field actuators(valves,VFDs)to the module’s output terminals using twisted-pair shielded cables,ensuring correct polarity for 4-20mA signals(positive to+terminal,negative to-terminal).Ground the cable shield at a single point to prevent ground loops.The module receives power and communicates with the DCS via the integrated backplane connector—no additional wiring is required for these functions.

Maintenance recommendations:Perform monthly visual inspections to check for loose wiring,module overheating(indicated by LED fault lights),and physical damage.Calibrate the module annually using a precision signal generator to verify accuracy—follow the calibration procedures in Control Builder M software.Test the short-circuit protection feature quarterly by intentionally creating a temporary short on a test channel(ensure the actuator is disconnected)and confirming the module triggers an alert.Backup the module configuration quarterly to facilitate quick recovery in case of replacement.Replace the module if diagnostic alerts persist after troubleshooting wiring and actuator issues.

Product Guarantee

We guarantee that every**ABB AO2000 LS25**analog output module is 100%authentic,sourced directly from ABB,and accompanied by original calibration certificates,test reports,and user manuals.The module comes with a 36-month warranty covering manufacturing defects in hardware and compliance with performance specifications.During the warranty period,we provide free replacement for faulty units and 24/7 technical support from ABB’s DCS engineering team.Our team offers on-site installation guidance,calibration services,and training on configuration and maintenance to ensure the module delivers reliable analog output control throughout its service life.

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