BFD0002, BALLUFF, ultrasonic position sensor for hydraulic cylinders, range 0–80 mm, IO-Link 1.1

BFD 3SAP-19N000-U01-LA2-C30S04 – ultrasonic position sensor for hydraulic cylinders

BFD 3SAP-19N000-U01-LA2-C30S04 monitors the position in a short-stroke hydraulic cylinder in the measuring range 0–80 mm. The evaluated position can be used for setting the stroke, monitoring movement and diagnostics of the hydraulic system. Compared with mere end-position indication, it enables continuous position detection throughout the declared range.

Technical specifications

What an ultrasonic sensor is and how it works

Unlike conventional ultrasonic sensors that measure distance in air, the series BFD uses ultrasound propagated hydraulickou kapalinou. Changes in the transit time and reflection of the signal make it possible to continuously monitor the position of the piston in a short-stroke hydraulic cylinder. The result is not just information on whether the piston has reached the end position, but measurement during its movement.

Where this model is used

• Hydraulic clamping: stroke monitoring during workpiece clamping and checking the course of the cycle.
• Machining: evaluation of correct seating or return of the clamping mechanism.
• Diagnostika: monitoring unusual movement in combination with information from the control system.

How the measurement information gets into the PLC

Interface IO-Link 1.1 enables digital transmission of process and diagnostic data and configuration changes. Alternatively, depending on the device settings, an analogue voltage is available 0–10V or proud 4–20mA; configurable switching functions are also available. The choice of mode and the wiring of the individual pins must be verified in the datasheet. Additional diagnostics can make available, for example, the internal temperature of the sensor.

How to choose and correctly use this variant

• Measuring range: 0–80 mm; verify that it corresponds to the actual stroke.
• Pressure rating: 350 bar (assess the value according to mounting conditions and medium).
• Connection of this version: Cable with connector, M12x1 connector, 4--pole, 0.3 m, TPU. Variants with a different cable or connector cannot be interchanged without checking.

Official BALLUFF specification and documentation – BFD0002