Balluff BTL6-U110-M****-PF-S4 series, User Manual

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3.1 Construction
Electrical connection: The electrical connection is made
via a connector (see Type code on page 20).
Housing: Aluminum housing containing the waveguide
and processing electronics.
Magnet:
Defines the position to be measured on the
waveguide. Magnets are available in various models and
must be ordered separately (see Accessories on
page 17).
Nominal length: To optimally adapt the BTL to the
application, the following nominal lengths are available:
Nominal length Grading
50…4572 mm 5 mm
3.2 Function
The BTL contains the waveguide which is protected by an
aluminum housing. A magnet is moved along the
waveguide. This magnet is connected to the system part
whose position is to be determined.
The magnet defines the position to be measured on the
waveguide.
An internally generated INIT pulse interacts with the
magnetic field of the magnet to generate a torsional wave
in the waveguide which propagates at ultrasonic velocity.
The component of the torsional wave which arrives at the
end of the waveguide is absorbed in the damping zone to
prevent reflection. The component of the torsional wave
which arrives at the beginning of the waveguide is
converted by a coil into an electrical signal. The travel time
of the wave is used to calculate the position. The
measuring value is output as a 32-bit value with a sign
relative to the null point.
3.3 LED display
In normal operation the LED indicates the
operating states of the BTL.
LED Operating state
Green
Normal function without IO-Link
communication
Magnet is within the limits.
Green
flashing
inversely Normal function with IO-Link communication
Magnet is within the limits.
Red Error
No magnet or magnet outside the limits.
Tab. 3-1: LED display
Fig. 3-1: BTL6…, construction
3
Construction and function
2)
13 73 73
~80 ~80 ~250 ~250
15
50
34.8
68
24.8
20.8
M12
1) Unusable area
2) Not included in scope
of delivery
1)
Nominal length =
Measuring range
Null point End point
Output signal rising:
Error signal
100 %
0 %
BTL5-P-3800-2 magnet
1)
Mounting clamps with insulating bushes
and ISO 4762 M5x25 cylinder-head screws,
max. tightening torque 2 Nm
2)
LED
BTL6-U110-M _ _ _ _ -PF-S4
Magnetostrictive Linear Position Sensor – Profile Style