How to Adjust the Rear Proximity Sensor on a Fagor Industrial Washer
On certain Fagor industrial washing machine models, an inductive proximity sensor is installed at the rear of the machine to detect the rotation of the rotating assembly. The sensor signal is used by the machine's motion control system during operation.
Adjusting the sensor does not directly change the drum speed. The main purpose is to position the sensor correctly so that it can reliably detect the moving metal target.
1. What Is the Function of the Rear Proximity Sensor?
The sensor is an inductive proximity sensor designed to detect the presence or movement of a metal target within its sensing range.
When the metal target passes through the sensing area, the sensor generates a signal for the control system. This signal can be used to monitor rotational movement and support machine operation control.
If the sensor is incorrectly positioned or the sensing distance is not suitable, the signal may become unstable or interrupted.
2. Adjusting the Sensor Distance
Before making any adjustment, disconnect the electrical power supply and follow the necessary safety procedures before opening the rear service area of the machine.
Identify the Sensor and Detection Target
Check the position of the sensor tip and the metal target passing through the sensing area. The sensor should be correctly oriented and aligned with the path of the moving metal component.
Position the Sensor Within Its Proper Sensing Range
Loosen the sensor mounting mechanism and carefully move the sensor closer to or farther from the metal target. The distance should remain within the sensing range specified for the exact sensor installed on the machine.
A single fixed distance should not be applied to every washer model or every sensor type. The correct sensing distance should be confirmed according to the sensor part number and the relevant technical documentation.
Secure the Sensor After Adjustment
Once the correct position has been established, securely fasten the sensor and make sure there is no risk of contact between the sensor tip and the rotating component during machine operation.
3. Checking the Signal After Sensor Adjustment
After completing the mechanical adjustment, the sensor signal should be checked before returning the machine to normal operation.
- Check that the sensor is securely mounted.
- Verify that the sensor tip is correctly aligned with the detection target.
- Inspect the sensor cable and electrical connections.
- Observe the sensor signal indicator if the installed sensor is equipped with an LED.
- Check the sensor response while the rotating assembly is operating under suitable conditions.
If the signal remains unstable, check the sensor position, sensing distance and sensor condition before concluding that the sensor has failed.
4. Sensor Adjustment and Drum Speed Are Different
This distinction is important when maintaining an industrial washing machine. Moving the sensor affects its ability to detect and transmit rotational movement signals.
The actual drum speed is controlled through the machine's control system and operating parameters. Therefore, the drum speed should not be adjusted by changing the physical position of the proximity sensor.
For machines with programmable control systems, changes involving operating parameters, speed settings or technical configuration should only be made according to the correct technical documentation for the specific machine model and controller version.
5. Important Points When Checking the Sensor
When troubleshooting rotation sensor issues, inspection should normally proceed from mechanical conditions to electrical signals. Replacing components or changing settings too early may make it more difficult to identify the actual cause of the problem.
- Do not adjust the sensor while the machine is operating unless safe conditions have been ensured.
- Do not allow the sensor tip to contact any rotating component.
- Do not change inverter or controller parameters without first identifying the actual cause of the issue.
- Always confirm the machine model, controller generation and component part number before using technical documentation.
Conclusion
The rear proximity sensor on a Fagor industrial washing machine is used to detect rotational movement and provide a signal to the machine control system. When adjusting the sensor, attention should be given to the mounting position, detection alignment and sensing distance specified for the installed sensor.
Correct inspection and adjustment can help maintain stable movement detection and support machine operation and technical troubleshooting. Any changes related to drum speed or system configuration should follow the technical documentation for the specific machine model in use.
Contact for Consultation
If your business or laundry facility requires consultation on industrial washing machines, laundry equipment or technical support during operation, contact PAN for consultation.
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