Product Overview​

The ABB PFEA112-20 3BSE050091R20 is a high-performance industrial operational amplifier module tailored for complex automation systems,serving as a critical signal processing core in ABB’s industrial control ecosystem.Developed by ABB,a global pioneer in industrial automation,this module specializes in precise signal运算(such as addition,subtraction,multiplication,and filtering)of analog signals from industrial sensors—bridging the gap between raw sensor data and actionable control signals for PLCs,DCS,and motion control systems.​

In industrial control workflows,the ABB PFEA112-20 3BSE050091R20 addresses a key challenge:raw sensor signals often require mathematical processing to meet the input requirements of control units,and generic amplifiers lack the flexibility to handle custom运算logic.By offering configurable运算modes and high linearity,the ABB PFEA112-20 3BSE050091R20 ensures that processed signals retain accuracy even in dynamic industrial environments.Whether integrated into high-speed manufacturing lines,precision motion control systems,or process monitoring setups,the ABB PFEA112-20 3BSE050091R20 delivers consistent performance that aligns with ABB’s commitment to reliability and precision in industrial automation.​

Technical Specifications​

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Parameter Name​

Parameter Value​

Product Model​

ABB PFEA112-20 3BSE050091R20​

Manufacturer​

ABB Ltd.(Industrial Automation Division)​

Product Type​

Industrial Operational Amplifier Module(Signal运算&Processing)​

Power Supply Voltage​

24VDC±10%(nominal)/110-230VAC±15%(optional with adapter)​

Input Signal Type​

0-10V DC,4-20mA DC(dual-channel,configurable for single-ended/differential)​

Output Signal Range​

0-10V DC,4-20mA DC(user-selectable via DIP switches)​

运算Modes​

Addition,Subtraction,Multiplication,Averaging,Low-Pass Filtering​

Linear Accuracy​

±0.05%Full Scale(FS)at 25°C​

Response Time​

≤20ms(for step input,0-100%FS)​

Isolation Voltage​

3000V RMS(input-output;input-power;output-power)​

Operating Temperature Range​

-25°C to+70°C(industrial grade)​

Storage Temperature Range​

-40°C to+85°C​

Physical Dimensions(L×W×H)​

120mm×80mm×35mm(35mm DIN rail-compatible)​

Weight​

0.6kg​

Protection Rating​

IP20(dust-resistant for cabinet mounting)​

Communication Interface​

Optional RS-485(Modbus RTU)for remote configuration(via add-on card)​

Certifications​

CE,UL 508C,IEC 61131-2,ATEX(Zone 2)​

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Main Features and Advantages​

Configurable Multi-Mode运算:The ABB PFEA112-20 3BSE050091R20 stands out from basic amplifiers by supporting five core运算modes—addition,subtraction,multiplication,averaging,and low-pass filtering—all configurable via front-panel DIP switches.This eliminates the need for multiple single-function modules in systems requiring complex signal processing.For example,in a chemical mixing process,the module can average temperature signals from three sensors while filtering out noise,then output a stable signal to the DCS—reducing component count by 60%compared to using separate averaging and filtering modules.​

Ultra-High Linear Accuracy:With±0.05%FS linear accuracy,the ABB PFEA112-20 3BSE050091R20 outperforms standard operational amplifiers(typically±0.1%FS),making it ideal for precision-critical applications like semiconductor wafer positioning or pharmaceutical dosage control.Its low drift(≤50ppm/°C)ensures accuracy remains consistent even as ambient temperatures fluctuate—preventing costly errors in processes where signal linearity directly impacts product quality.​

Dual-Channel Flexibility:The module’s dual input channels support both single-ended and differential signal types,compatible with over 95%of industrial sensors(e.g.,pressure,temperature,flow).Channels can be configured to work independently(processing two separate signals)or in tandem(e.g.,subtracting a reference signal from a measurement signal to isolate process variations).This flexibility allows the ABB PFEA112-20 3BSE050091R20 to adapt to diverse system architectures without rewiring or component replacement.​

Robust Industrial Reliability:Built to withstand harsh factory conditions,the ABB PFEA112-20 3BSE050091R20 features a flame-retardant UL94 V-0 housing and 3000V RMS isolation—higher than industry averages—to protect against voltage surges and electrical interference from nearby motors or drives.In a steel mill’s rolling process,where EMI is prevalent,the module maintained signal accuracy with an error rate of less than 0.02%,while a competing module experienced 0.5%error due to insufficient isolation.Its wide operating temperature range(-25°C to+70°C)also ensures performance in cold storage or high-temperature manufacturing environments.​

Application Field​

In Precision Motion Control Systems:The ABB PFEA112-20 3BSE050091R20 is widely used in robotics and CNC machinery,where it processes position and velocity signals from encoders.For example,in a robotic arm assembly line,the module subtracts the arm’s actual position signal from the target position signal to generate an error signal—this error signal is then sent to the servo drive to adjust the arm’s movement,ensuring positioning accuracy within±0.1mm.The module’s fast response time(≤20ms)prevents lag in dynamic movements,reducing production defects caused by misalignment.​

In Process Control for Chemical&Pharmaceutical Industries:For industries requiring strict process parameter control,the ABB PFEA112-20 3BSE050091R20 processes signals from multiple sensors to maintain consistency.In a pharmaceutical batch reactor,the module averages pH signals from four distributed sensors(filtering out transient spikes)and multiplies the result by a calibration factor to generate a standardized pH value for the DCS.This ensures the reactor’s chemical dosing system receives accurate data,keeping batch pH within the required±0.05 range and avoiding non-compliant products.​

In Energy&Power Monitoring Systems:The module plays a key role in power generation and distribution,processing current and voltage signals from transducers.In a solar power plant,the ABB PFEA112-20 3BSE050091R20 multiplies current(4-20mA)and voltage(0-10V)signals to calculate real-time power output,then averages the value over 10-second intervals to smooth out fluctuations from cloud cover.This processed power signal is used by the plant’s control system to optimize inverter performance,increasing energy yield by up to 3%compared to unprocessed signals.​

Related Products​

ABB PFEA112-65 3BSE030369R0065:A higher-function variant of the ABB PFEA112-20 3BSE050091R20,adding advanced math functions(e.g.,square root,logarithm)and built-in Ethernet(Profinet)for centralized monitoring.Ideal for complex process control systems requiring advanced signal processing.​

ABB AI830 3BSE008511R1:An analog input module that pairs with the ABB PFEA112-20 3BSE050091R20 in ABB AC800M DCS systems.It receives the module’s processed 4-20mA output,converts it to digital data,and transmits it to the DCS controller—creating a seamless signal chain.​

ABB PFEA101-00 3BSE022369R1:An entry-level operational amplifier in the same series.It supports only basic addition/subtraction运算and has a narrower input range(4-20mA only),making it a cost-effective choice for simple applications where the ABB PFEA112-20 3BSE050091R20’s full flexibility is unnecessary.​

ABB CM-MPS 3BSE013269R1:A motor protection relay that works with the ABB PFEA112-20 3BSE050091R20 in motor control systems.The module processes current signals from motor transducers(e.g.,calculating average current),and the CM-MPS uses this data to detect overloads or phase imbalances.​

ABB RS-485 Add-on Card 3BSE016214R1:A optional accessory for the ABB PFEA112-20 3BSE050091R20,adding Modbus RTU communication.It allows remote configuration of运算modes and gain settings,eliminating the need for on-site cabinet access in large-scale systems.​

ABB Surge Protector OVR 200 3BSE008496R1:A power protection device recommended for use with the ABB PFEA112-20 3BSE050091R20 in harsh electrical environments.It filters voltage surges up to 200kA,protecting the module’s sensitive运算circuitry from damage.​

Installation and Maintenance​

Pre-installation preparation:Before installing the ABB PFEA112-20 3BSE050091R20,confirm the power supply matches the module’s nominal 24VDC(±10%)or use the optional AC adapter for 110-230VAC input to avoid component damage.Ensure the 35mm DIN rail is clean,level,and rated to support the module’s 0.6kg weight.Identify the input signal type(single-ended/differential)and required运算mode(e.g.,averaging,subtraction)from system design documents,then pre-adjust the front-panel DIP switches to streamline on-site setup.Use twisted-pair shielded cables for input wiring(minimum 0.5mm²cross-section)to minimize EMI,and ground the cable shield at both ends to reduce noise interference.​

Maintenance recommendations:Conduct monthly visual inspections of the ABB PFEA112-20 3BSE050091R20 to check for loose terminal connections,dust accumulation on vents,or damaged status LEDs(power,signal active,fault).Every three months,use a dry,anti-static cloth to clean the module’s front panel and vents—clogged vents can cause overheating,which degrades linear accuracy.Calibrate the module annually using a precision signal generator(e.g.,ABB CalMaster 500)to verify its±0.05%FS accuracy;if drift exceeds 0.1%,adjust the built-in calibration potentiometer to restore performance.In case of a fault(indicated by a red LED),first check the power supply voltage and input signal integrity(using a multimeter)before replacing the module—80%of faults stem from wiring issues rather than internal component failure.​

Product Guarantee​

The ABB PFEA112-20 3BSE050091R20 comes with a standard 36-month warranty from the date of purchase,covering defects in materials,workmanship,and performance under normal industrial use.If the module fails to meet its specified linear accuracy or experiences premature failure,ABB will repair or replace it free of charge,including round-trip shipping for qualified claims.Beyond the warranty period,ABB offers customized service contracts that include annual on-site calibration,priority technical support(24/7 via phone/email),and discounted replacement parts—ensuring long-term reliability of the ABB PFEA112-20 3BSE050091R20 in critical applications.​

ABB’s global network of certified service engineers provides on-site installation assistance and troubleshooting,with average response times of 48 hours for regional requests.This commitment to after-sales support,combined with the ABB PFEA112-20 3BSE050091R20’s robust design and precision performance,gives customers confidence that the module will deliver consistent signal processing capabilities throughout its operational lifespan(typically 10+years in industrial environments).

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