The 3BSE050092R20, commonly identified as the PFEA113-20, is a high-precision Web Tension Electronics unit from ABB. Designed for demanding industrial web-processing applications (such as paper mills, converting, and printing), it converts tension sensor signals into standardized output signals for precise process control, ensuring optimal product quality and reducing web breaks.

⚙️ Product Datasheet & Technical Specifications

• Manufacturer: ABB

• Part Number: 3BSE050092R20 (PFEA113-20)

• Function: Tension Electronics (2-channel)

• Supply Voltage: 24 V DC (18–36 V)

• Inputs: 2 independent channels for tension sensors

• Output Signals: 0/4–20 mA or 0–10 V (configurable)

• Communication: Built-in fieldbus interfaces (Profibus DP, etc.)

• Dimensions: 175 x 110 x 140 mm

• Weight: Approximately 0.7 kg

• Origin: Sweden / Finland (ABB standard manufacturing)

🛠️ Mechanical Installation Requirements

• Mounting: The unit is designed for DIN-rail mounting or panel mounting inside an industrial cabinet. Ensure the surface is vibration-free to prevent interference with sensitive strain gauge measurements.

• Spatial Clearance: Maintain at least 50 mm of free space on all sides of the unit to ensure adequate air circulation and to allow for easy access to terminal connectors.

• Environment: Install in a clean, dry location (IP20 rated). Ensure the operating ambient temperature remains between 0°C and +50°C to maintain electronic accuracy.

⚡ Electrical Wiring Guidelines

• Terminal Definition: Power supply, sensor inputs (Load Cells), and signal outputs are clearly marked. Use terminal blocks per the connection diagram provided in the user manual to avoid cross-channel interference.

• Line/Wire Gauge: Use shielded, twisted-pair cables for all sensor inputs to prevent electromagnetic noise. A wire cross-section of 0.5–1.5 mm² is recommended for control signals.

• Grounding: A dedicated, low-resistance ground connection is essential. Connect the cable shields to the grounding bar at the entry point of the cabinet to ensure signal integrity.

🌐 Communication Configuration Steps

• Setup Mode: Access the configuration menu via the front-panel display or the configuration tool.

• Parameterization: Define the number of load cells, calibrate the tension range (Zero and Span), and assign the output scaling (e.g., 4 mA = 0 N, 20 mA = 1000 N).

• Fieldbus Setup: If using communication modules, set the node address and baud rate to match the PLC/DCS master network settings.

❓ Frequently Asked Questions (Q&A)

• Q: What does the “Sensor Error” display typically indicate? A: This usually points to a broken wire in the load cell cable or a short circuit in the sensor bridge. Inspect the wiring connections between the PFEA113 and the tension sensors first.

• Q: Can the PFEA113-20 be used to control two independent tension zones? A: Yes, it is a 2-channel unit. You can configure it to monitor and output signals for two separate tension zones independently.

• Q: How often should the system be recalibrated? A: It is recommended to verify calibration annually or whenever the tension sensors or mechanical web path components are serviced.