Description
Key Technical Specifications
| Parameter | Value |
| Manufacturer | ABB |
| Model Number | PFEA111-20 |
| Legacy Part Number | 3BSE028140R0020 (Replaced by 3BSE050090R20) |
| Input Voltage | 24 V DC (Operating range 18-36 V DC) |
| Load Cell Inputs | 2 independent channels |
| Analog Voltage Output | 0 to +10 V (Max load 5 mA, ripple <10 mVp-p) |
| Analog Current Output | 4 to 20 mA (Max load 550 Ω) |
| Step Response Time | 15 ms |
| Display Indications | A, B, A+B, A-B tension values |
| Enclosure Rating | IP20 (DIN rail mountable) |
| Operating Temperature | -40°C to +85°C |
| Dimensions (H x W x D) | 16.50 x 4.50 x 7.20 cm |
| Net Weight | 0.20 kg |
Product Introduction
The ABB PFEA111-20 (3BSE028140R0020) is a high-precision tension electronics module designed to interface directly with up to two industrial load cells. It serves as a dedicated processing unit in web-handling systems, calculating and displaying real-time material tension for paper mills, converting lines, plastic film extrusion, and textile processing plants.
Engineers specify the PFEA111-20 because it combines a fast 15 ms response time with highly reliable analog feedback outputs (both 0-10 V and 4-20 mA). This ensures immediate integration into higher-level PLC or DCS architectures, such as the ABB Advant S800 platform, providing stable closed-loop tension regulation without processing lag.
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to this Part | Quick Check Method | Recommendation |
| Blank Display / No LEDs | Lack of input power or internal fuse failure | ❌ Low | Measure for 24 V DC directly across power input terminals. | Verify external power supply and wiring before replacement. |
| Incorrect / Drifting Tension Reading | Load cell misalignment or poor shield grounding | ❌ Low | Isolate load cell cables and check for insulation resistance. Check physical roller alignment. | Recalibrate system zero-point; ensure shield is grounded at one end. |
| Unresponsive Analog Outputs | Blown output driver or excessive load resistance | ✅ High | Measure current output loop; ensure total loop resistance does not exceed 550 Ω. | If loop is within spec but output stays at 0 mA, replace module. |
| Display Shows Fixed Error Code | Internal memory or processor configuration fault | ✅ High | Perform a power cycle; attempt to access setup menu to read error log. | Internal failure. Swap out with a verified surplus unit. |
Note: If you encounter complex diagnostic faults or synchronized clock errors across multiple units, please contact our technical support team with clear photographs of your wiring layout and complete diagnostic logs.
- PFEA111-20 3BSE028140R0020
- PFEA111-20 3BSE028140R0020
Frequently Asked Questions (FAQ)
Q: What is the physical difference between part numbers 3BSE028140R0020 and 3BSE050090R20?
A: Functionally, they perform the exact same tasks in your control system. Part number 3BSE028140R0020 represents the legacy revision of the PFEA111-20 controller. ABB later updated the manufacturing sequence and assigned the newer product ID 3BSE050090R20. Our surplus inventory covers both variants, and they function as direct drop-in replacements for one another without firmware re-engineering.
Q: Can I hot-swap this tension module while the production line is active?
A: No, do not hot-swap this module. Pulling the module under load risks arcing at the terminal block, which can damage the internal logic gates of the controller or cause voltage spikes back into the 24 V DC supply line. Always isolate the cabinet power supply prior to removing or seating any DIN-rail components.
Q: Why is a New Surplus unit from your stock cheaper than ordering directly from the factory?
A: Factory lead times for specialized force measurement hardware can stretch into months, and official distribution channels charge a high premium for obsolete lifecycle items. We source our inventory from verified facility upgrades, cancelled projects, and spare-parts recovery operations. This allows us to pass substantial cost savings to you while keeping critical industrial replacements ready for immediate dispatch.
Q: Does this module lose its calibration settings when unpowered during storage?
A: No. The configuration parameters, calibration data, and filter settings are written directly into non-volatile EEPROM memory. The module will retain your configuration without any backup battery power during transit or extended storage. When you install it, you only need to confirm the physical DIP switches match your original operational layout.
Q: How does the synchronization function work if I deploy multiple units?
A: To prevent electronic beat frequencies from interfering with your load cell signals, you must link the SYNC terminals across all adjacent controllers using shielded twisted-pair cabling. This Forces the internal oscillator networks to run on a shared clock cycle, mitigating signal noise across high-density panel assemblies.
If you are dealing with critical machine downtime, I can verify current inventory stock counts and overnight shipping options to your plant. Would you like me to check real-time availability and pull a direct datasheet wiring layout for this specific unit?
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