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Product Overview
The ABB PFRA101 3BSE003911R115 is a high-performance Pressductor Control Unit engineered for precise tension measurement and control in industrial applications. Designed to operate with a 115V AC power supply, this unit integrates seamlessly with ABB’s Pressductor load cells, ensuring accurate and reliable performance in demanding environments. Its compact design facilitates easy installation and integration into existing systems, making it an ideal choice for various industries requiring meticulous tension control.
Technical Specifications
| Parameter | Specification |
| Model Number | PFRA101 |
| Ordering Code | 3BSE003911R115 |
| Power Supply | 115V AC |
| Dimensions (L x W x H) | 127 x 279 x 102 mm |
| Weight | 3.31 kg |
| Mounting Type | Panel Mount |
| Compatible Load Cells | ABB Pressductor Load Cells |
| Country of Origin | Sweden |
Applications
The PFRA101 control unit is utilized in various industrial sectors, including:
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Metallurgy: Monitoring and controlling tension in rolling mills and processing lines.
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Paper Industry: Ensuring consistent tension in paper machines and winders.
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Textile Industry: Maintaining proper tension in fabric processing and winding operations.
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Plastic and Rubber Processing: Controlling tension during extrusion and winding processes.
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Printing Industry: Managing web tension in printing presses for high-quality output.
Advantages
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High Accuracy: Provides precise tension measurement, enhancing product quality.
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Robust Design: Built to withstand harsh industrial environments.
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Easy Integration: Compatible with existing ABB Pressductor load cells and systems.
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Reliable Performance: Ensures consistent operation, reducing downtime.
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Low Maintenance: Designed for long-term use with minimal maintenance requirements.
Frequently Asked Questions (FAQ)
1. What is the difference between the PFRA101 3BSE003911R115 and the R230 version?
The key difference lies in the power supply voltage. The R115 version operates at 115V AC, while the R230 variant is designed for 230V AC input. Internally, both offer the same functionality but are adapted to different regional power standards.
2. Can the PFRA101 be used with non-ABB load cells?
No, the PFRA101 is engineered to work exclusively with ABB’s Pressductor® load cells. These load cells use a unique magnetoelastic principle, and using other brands may result in inaccurate readings or incompatibility.
3. What is the recommended mounting orientation for the PFRA101 unit?
The unit is designed for panel mounting. It should be installed vertically in a control cabinet with sufficient ventilation around it to ensure optimal thermal dissipation and performance.
4. How does the PFRA101 contribute to tension control precision in paper or metal web processing?
By accurately converting mechanical tension into an electrical signal via Pressductor load cells, the PFRA101 allows real-time tension monitoring and adjustment, which minimizes material waste and maintains consistent product quality during continuous production processes.
5. Does the PFRA101 include any built-in diagnostics or error detection features?
Yes, the PFRA101 provides LED indicators for operational status and fault diagnostics. These indicators help operators quickly detect and respond to issues like signal failure or power supply errors.
6. Is there a warm-up time required before the unit delivers accurate readings?
Yes, while the PFRA101 powers up quickly, ABB recommends a short warm-up period (typically less than 2 minutes) to ensure the most stable and accurate output, especially in high-precision applications.
7. Can this unit be configured remotely via fieldbus or digital communication?
The PFRA101 does not support direct digital bus interfaces like PROFIBUS or Ethernet/IP. It operates as an analog control unit, but it can be connected to a PLC or DCS system via analog outputs and relays.
8. Are there known electromagnetic compatibility (EMC) standards the unit complies with?
Yes, ABB designs this unit to meet strict industrial EMC standards, ensuring that it functions reliably even in environments with high levels of electromagnetic interference, such as near large motors or frequency converters.
9. What maintenance schedule is recommended for the PFRA101 unit?
The PFRA101 is largely maintenance-free under normal operating conditions. ABB recommends visual inspection and connection checks every 12 months, along with calibration verification based on operational criticality.
10. Can the PFRA101 be recalibrated in the field without special ABB tools?
Yes, field recalibration is possible using standard procedures outlined in the technical manual. It requires precise test weights and signal simulators, but no proprietary software is needed. However, ABB-certified calibration is recommended for high-accuracy applications.
Related Models
| Model Number | Description |
| PFRA101 3BSE003911R230 | Control Unit prepared for 230V AC |
| PFTL101A-2.0kN | Load Cell with 2.0kN capacity |
| PFTL101A-5.0kN | Load Cell with 5.0kN capacity |
| PFTL101A-10.0kN | Load Cell with 10.0kN capacity |
| PFTL101A-20.0kN | Load Cell with 20.0kN capacity |
| PFTL101A-50.0kN | Load Cell with 50.0kN capacity |
| PFTL101A-100.0kN | Load Cell with 100.0kN capacity |
| PFTL101A-200.0kN | Load Cell with 200.0kN capacity |
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