ABB PFEA111-20 3BSE050090R20 Tension Electronics Amplifier (Profibus‑DP Version)

Description

Hardware & Electrical Specifications

• Model：PFEA111‑20
• Part Number：3BSE050090R20
• Module Type：Tension Electronics Amplifier
• Mounting：DIN‑rail mounting, IP20 protection grade
• Power supply：24 V DC (18‑36 V DC), power consumption 7.5 WABB Group
• Sensor channel：2‑channel load‑cell input; 330 Hz sensor excitation 0.5 A rmsABB Group
• Analog output：0‑10 V, 4‑20 mA configurable
• Communication：Profibus‑DP fieldbus interface
• Display：2×16 character multi‑language LCD with setting keysABB Group
• Measuring accuracy：±0.1% full scale
• Galvanic isolation：between sensor side and control logic side
• On‑board protection：overload protection, signal filtering, short‑circuit protection
• Compatibility note：Cannot run standalone; match ABB PFCL / PFTL tension sensors, must match host system configuration.

Environmental Specifications

• Operating temperature：‑10 ℃ ~ +55 ℃ABB Group
• Storage temperature：‑40 ℃ ~ +70 ℃
• Relative humidity：5%‑95% non‑condensing
• Installation location：Inside industrial control cabinet
• EMC compliance：IEC 61000‑6‑2
• Certifications：CE, UL61010C

Mechanical Data

• Weight：approx 0.30 kg
• Dimension：125 mm × 100 mm × 45 mm
• Terminals：screw terminal blocks for sensor, power, analog signal and Profibus‑DP bus
• Recommended wire cross‑section：0.75 mm²‑2.5 mm² copper cable for signal terminals
• Terminal tightening torque：0.6‑1.0 N·m

Main Functions

1. Supply excitation and acquire measuring signal from dual tension load‑cells.
2. Calculate tension value of individual channel, sum(A+B) and difference(A‑B).
3. Configurable digital filtering for suppressing mechanical vibration and noise interference.
4. Analog output 4‑20 mA / 0‑10 V for PLC / drive closed‑loop tension control.
5. Local LCD display for tension value reading, parameter setting and status diagnosis.
6. Profibus‑DP communication for remote reading of tension value, alarm and parameter configuration.
7. Channel self‑diagnosis: detect sensor break, overload and circuit fault, report alarm status.
8. LED status indication:
   • Green LED：Power supply normal, unit healthy
   • Yellow LED：Measuring signal / Profibus‑DP communication active
   • Red LED：Over‑load / sensor fault / unit hardware fault

Installation & Wiring Requirements

1. Cut off power supply before wiring or replacement. Mount PFEA111‑20 firmly on DIN‑rail inside cabinet. Hot‑swap is forbidden.
2. Connect load‑cell sensor cable, power cable, analog output and Profibus‑DP bus cable strictly per wiring drawing; separate sensor weak‑signal cables from high‑power cables to reduce electromagnetic interference.
3. Complete grounding according to ABB tension‑system specification.
4. After replacement, perform load‑cell calibration, set filter parameters and Profibus‑DP station address; verify measuring output and bus communication function before commissioning.
5. Replacement note: parameter download and recalibration are required after unit replacement. Cannot directly swap with RS485 Modbus version 3BSE028140R0020, communication interface hardware differs.