ABB 3BSE024388R1 PFXA 401 Control unit

Description

The ABB 3BSE024388R1 PFXA 401 is a control unit used in ABB force measurement, strip tension, and strip position measurement systems.

The PFXA 401 provides two analog inputs and supports angle compensation for compatible ABB load cells. ABB documents compatibility with QGPR 102/104 load cells up to 2 MN and PFBL 101/141 load cells up to 2 x 400 kN.

The control unit can also interface with two PMSG 123 or PMSG 125 edge sensors. This allows the PFXA 401 to participate in strip width and position measurement applications as well as force and tension measurement systems.

The unit incorporates dedicated mains, synchronization, analog output, digital signal, and sensor connection terminals. Its ABB product record also identifies an internal lithium battery and a 2 A, 250 V fuse.

Features

• ABB PFXA 401 control unit

• Product ID 3BSE024388R1

• Two analog inputs

• Angle compensation for supported load-cell configurations

• Compatible with QGPR 102/104 load cells up to 2 MN

• Compatible with PFBL 101/141 load cells up to 2 x 400 kN

• Interface capability for two PMSG 123 or PMSG 125 edge sensors

• Dedicated analog output connections

• Dedicated digital signal connections

• Mains and synchronization terminals

• Replaceable lithium battery identified by ABB

• 2 A, 250 V fuse identified by ABB

• Used in ABB force, tension, and strip position measurement systems

Applications

• Strip and web tension measurement

• Roll force measurement

• Strip width and position measurement

• Load-cell signal processing

• Edge sensor integration

• Maintenance of ABB PFXA401 electronics

• Replacement of existing 3BSE024388R1 control units

Technical Specifications

Connections / Interfaces

Component References

Installation & Commissioning

• Verify the complete 3BSE024388R1 / PFXA 401 identification before replacement.

• Record existing terminal assignments before removing the installed unit.

• Confirm the connected load-cell type and measurement range.

• Verify whether QGPR, PFBL, or PMSG sensors are used in the existing system.

• Preserve analog output and digital signal wiring during replacement.

• Inspect the battery and fuse condition before commissioning.

• Confirm sensor readings and angle compensation after installation.

• Verify the associated tension, force, or strip-position measurement function before normal operation.

Replacement Notes

• Match both Product ID 3BSE024388R1 and type designation PFXA 401.

• Confirm the installed load cells and edge sensors before substitution.

• Preserve existing measurement and compensation settings where applicable.

• Do not assume terminal assignments beyond those explicitly identified in ABB documentation.