ABB PFEA111-65 3BSE050090R65 Tension electronic module

ABB PFEA111-65 (3BSE050090R65) is a robust, high-precision tension electronics module designed for web tension measurement in demanding industrial environments.

It is part of the Pressductor® family, known for its extreme reliability in the paper, converting, and textile industries.

1. Introduction

The PFEA111-65 provides accurate signal processing for tension load cells. It is the “enclosed” version of the PFEA111 series,

specifically built with an IP65 (NEMA 4) rating to resist dust and water, allowing it to be mounted directly on machinery rather than inside a protected electrical cabinet.

It calculates and displays the sum and individual signals from two load cells.

2. Technical Parameter Table

3. Related Models

PFEA111-20 (3BSE050090R20): The DIN-rail version (IP20) for cabinet mounting.

PFEA112-65: Similar to PFEA111 but includes Profibus-DP communication.

PFEA113: Advanced version supporting up to 4 load cells and gain scheduling.

PXUB 201: Insulation amplifier often used to isolate analog output signals.

4. Product Advantages and Features

Rugged IP65 Housing: Eliminates the need for an external enclosure; can be mounted in “wet” or dusty zones.

Pressductor® Technology: Uses ABB’s unique electromagnetic measurement principle—no physical movement/strain is required in the sensor, leading to high overload tolerance.

User-Friendly Setup: Features a “Fast Setup” routine that guides the operator through calibration in minutes.

Flexible Monitoring: The display can show Load Cell A, Load Cell B, the sum (A+B), or the difference (A-B).

Multi-Language Support: Interface is available in English, German, French, Italian, Spanish, and more.

5. Application Cases

Paper & Pulp Mills: Precise tension control during the winding and unwinding of large paper rolls.

Printing Presses: Maintaining constant tension for high-speed color registration on plastic films or paper.

Steel & Rolling Mills: Heavy-duty force measurement in metal processing lines.

Textile Manufacturing: Controlling the tension of delicate fabrics to prevent tearing or stretching.

6. Installation and Maintenance

Installation:

Mounting: Mount onto a flat, vibration-free surface. Ensure cable glands are properly tightened to maintain the IP65 seal.

Grounding: The metal base must be securely connected to the protective earth (PE) to ensure EMI immunity.

Wiring: Use shielded twisted-pair cables for load cell connections to minimize electrical noise interference.

Maintenance:

Zeroing: Periodically perform a “Zero-set” (taring) when the rolls are empty to maintain accuracy.

Visual Checks: Inspect the enclosure gasket for wear and ensure the display window remains clean for visibility.

Verification: Use a known weight (dead weight calibration) annually to verify that the tension reading matches the physical force applied to the load cells.