Description
Product Introduction
Force-measurement errors can affect rolling-mill setup, process consistency, and product quality. The ABB PFXA401SF is a control unit for compatible load-cell measurement systems, with catalog-listed analog inputs and PROFIBUS connectivity.
For a replacement, verify the order number 3BSE024388R4, sensor compatibility, wiring, and fieldbus configuration. A similar ABB force-measurement unit may have a different role or interface.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | PFXA401SF |
| Product ID | 3BSE024388R4 |
| Product category | Force-measurement control unit |
| Measurement application | Load-cell and rolling-force measurement |
| Analog inputs | 4 |
| Fieldbus | PROFIBUS |
| Angle compensation | Listed as supported |
| Compatible load-cell family | QGPR 102/104, subject to system configuration |
| Stated maximum load | Up to 2 MN for the documented sensor configuration |
| Supply voltage | Verify from the unit label and applicable manual |
| Analog signal ranges | Not independently verified |
| Operating temperature | Not independently verified |
| Mounting method | Verify the installed assembly and enclosure |
| Protection rating | Not independently verified |
| Condition | Supplier confirmation required |
| Testing | Request unit-specific functional-test documentation |
The specifications above reflect supplier catalog descriptions; they should not replace the applicable ABB technical documentation for commissioning or safety-critical decisions.

PFXA401SF
Related Products
- ABB PFCA401SF — 3BSE024387R4: A related control unit listed with four analog inputs and PROFIBUS for web-tension load cells. Its model and product role differ from PFXA401SF.
- ABB PFVA401SF — 3BSE024389R4: A control and excitation unit listed for QGPR 102/104 load-cell applications, including angle compensation. The order number differs from PFXA401SF.
- ABB PFVI401 — 3BSE018732R1: A related unit in ABB’s force-measurement product family. Confirm its exact role in the target system before selecting it as a spare.
- ABB PFEA111-20 — 3BSE050090R20: A tension-measurement controller used in web-tension applications; it is not automatically interchangeable with a force-measurement unit.
- ABB PFEA111-65 — 3BSE028140R0065: Another tension-controller variant. Check the application, sensor interface, and output requirements before considering it for a system modification.
- ABB PFEA112-20 — 3BSE050091R20: A related tension-measurement controller model. Its function and configuration must be evaluated against the installed system.
- ABB PFTL load cells: A family of force sensors used in industrial measurement applications. Select the sensor by required force range, mounting, and compatibility with the controller.
Frequently Asked Questions
Q1: What is the ABB used for?
It is listed as a force-measurement control unit for load-cell applications. The documented configuration includes four analog inputs, PROFIBUS, and angle compensation.
Q2: Is the same as PFCA401SF?
No. They are separate model designations with different order numbers. Verify the installed unit’s nameplate and the system bill of materials before ordering a substitute.
Q3: Can work with QGPR 102/104 load cells?
Supplier documentation lists compatibility with QGPR 102/104 load cells, up to 2 MN for the specified configuration. Confirm the exact sensor type, wiring, and measurement setup in the applicable documentation.
Q4: Does the unit support PROFIBUS?
Yes, PROFIBUS is listed in the product information for . Verify the installed network configuration, addressing, and communication settings before commissioning.
Q5: Can I hot-swap the unit while the machine is running?
Do not assume hot-swapping is supported. Follow the machine manufacturer’s isolation and replacement procedure, and confirm whether the control system requires a shutdown or recalibration after replacement.
Q6: Can I transfer settings from the old unit?
Do not assume settings are directly transferable. Record the existing configuration, verify hardware and firmware compatibility, and perform the required calibration and functional checks after installation.
Q7: What should I verify before purchasing a replacement?
Confirm the model and order number, analog input requirements, PROFIBUS interface, compatible load-cell type, mounting and connector arrangement, and the supplier’s condition and test records. For an existing production line, obtain written confirmation that the offered unit matches the original system configuration.
