Balluff BTL PF 400 Series - Function; Display elements; Part label

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4
Product description (continued)
4.2 Function
To determine the position of a plant component, a magnet
is connected to the component. Together they are moved
along a waveguide located inside the BTL.
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 position of
the magnet and thus at the same time that of the plant
component is determined from the running time of the
shaft.
The measurement value is output as a 32-bit value with
sign relative to the zero point.
Number of magnets
Operation is possible with one or two magnets, whereby
the number can be set to one magnet or used flexibly.
4.3 Display elements
Signal Meaning
Red flashing,
1Hz
This signal occurs if a measurement
error occurs. The measurement value
is unknown due to an error or outside
of the measuring range.
Red, static General error.
Green,
alternating with
LED off in a ratio
of 10:1, 1s
period
IO-Link communication is active.
The device is ready.
Green, static The device is ready.
Tab. 4-1: LED display
4.4 Part label
1)
2)
3)
1)
Order code
2)
Type
3)
Serial number
Fig. 4-2: Part label (section, example)
BTL PF _ 400- _ _ _ _ -C12NL _ _ -0-000S04
Magnetostrictive Linear Position Sensor – Profile Style