Page 12
Initial Operation
IMS5x00
Positioning the Target, Distance Measurement
The red-light pilot laser supports you in aligning the
sensor to the target during commissioning.
Turn on or off the pilot laser in the menu
Settings
>
System settings.
Position the target (measurement object) as much
as possible in the mid of the measuring range.
100 %
50
0
Sensor
SMR
SMR MMR EMR
Dis-
tance
Signal
Target
Measuring range (MR)
max. ±1 °
The LED
Range
on the controller front indicates the
position of the target in relation to the sensor.
Green
Pilot laser is turned on and
off alternately, if no target or
outside the measuring range
You can also position the sensor using the FFT sig-
nal
1
. The interferometric measuring principle provides
measurement values in front of and behind the actual
measuring range. An incorrect measuring range dis-
tance can be recognized by the running direction of the
peak in the FFT signal. Inverse direction of FFT signal, if
the target is outside measuring range.
Distance between sensor
and target becomes smaller
Distance between sensor
and target becomes greater
Using the FFT signal for sensor positioning
Red
No target or target outside the
measuring range
Yellow
Target close to mid of
measuring range
Green
Target within measuring range
1) FFT = Fast Fourier Transformation, frequency signal
