Reer MOSAIC Master M1 Installation And Use Manual page 100

It allows you to choose the type of
proximity sensor from PNP, NPN, Normally Open (NA) and
Normally Closed (NC), with 3 or 4 wires.
(In order to ensure a Performance Level = PLe use a proximity
switch type PNP NO: ref. "Interleaved proximity -> page 26).
Enter in this field the number of pulses/revolution (in the case of rotary sensor)
or µm/pulse (linear sensor) relating to the sensor used
Enter in this field the number of pulses/revolution (in the case of rotary sensor) or
µm/pulse (linear sensor) relating to the second sensor used.
This parameter is active if there are two sensors on the selected axis. This
parameter allows you to enter the ratio between the two sensors. If both sensors are on the
same moving parts, the ratio will be 1 otherwise the number corresponding to the report must
be entered. E.g. there are an encoder and a proximity switch, and the latter is on a moving part
that (due to a gear reduction ratio) rotates at twice the speed of the encoder. Therefore, this
value must be set at 2.
It represents the percentage hysteresis value below which the speed change is
filtered. Enter a value other than 1 to avoid continuous switching as the input changes.
Enter in this field the maximum speed value above which the function block
output (OVER) will be 0 (FALSE). If the measured speed is less than the set value, the function
block output (OVER) will be 1 (TRUE).
It shows the maximum calculated frequency
values fM and fm (decreased by the hysteresis set). If the
displayed value is GREEN, the calculation of frequency gave a
positive result.
If the displayed value is RED, it is necessary to change the
parameters given in the following formulas.
1. Rotary axis, rotary sensor. The frequency obtained is:
rpm [rev/m in]

f [Hz]
60
2. Linear axis, rotary sensor. The frequency obtained is:
speed [m/min]

f [Hz]
60 * pitch [mm/rev]
3. Linear axis, linear sensor. The frequency obtained is:
speed [m m /s]

f [Hz]
Re solution
Hysteresis. To be changed only if: fM=green; fm=red
100

Re solution [pulses/re v]
* 1000

Re solution [pulses/re
* 1000
[µm /pulse]
MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC
f = frequency
Rpm = rotational speed
Resolution = measurement
Speed = linear speed
Pitch = sensor pitch
v]
Proximity choice:
8540780 • 30/03/2016 • Rev.26