Reer MOSAIC M1 Installation And Use Manual page 166

Gear Ratio: 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.
Hysteresis (%): It represents the percentage hysteresis (the percentage is calculated from the
threshold value) below which the speed change is filtered.
High speed:
Enter in this field the maximum speed value above which the output of the function block
(WINDOW) will be 0 (FALSE). If the measured speed is less than the set value, the output (WINDOW)
of the function block will be 1 (TRUE). The maximum speed value could be entered with the
decimal point provided that MOSAIC M1 fw >= 4.0 or MOSAIC M1S fw >= 5.1 or MOSAIC M1S COM
and MVx fw >= 2.0 were used.
Low speed:
Enter in this field the minimum speed value below which the output of the function block
(WINDOW) will be 0 (FALSE). If the measured speed is more than the set value, the output (WINDOW)
of the function block will be 1 (TRUE). (The minimum speed value could be entered with the
decimal point provided that MOSAIC M1 fw >= 4.0 or MOSAIC M1S fw >= 5.1 or MOSAIC M1S COM
and MVx fw >= 2.0 were used.
Frequency: It shows the frequencies values calculated starting
from the speed thresholds fM and fm (fm is the fM threshold
frequency 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. Rotational axis, rotational sensor. The frequency obtained is:
2. Linear axis, rotational sensor. The frequency obtained is:
speed [m/min]
=
f [Hz]
60 * pitch [mm/rev]
3. Linear axis, linear sensor. The frequency obtained is:
speed [mm/s]
=
f [Hz]
Re solution
4. Hysteresis. To be changed only if: fM=green; fm=red
Enable Error Out: If selected reports a fault detected by the
function block (please read the section "Warning concerning
safety").
Speed Output: when enabled, make the measured frequency
available via the Speed output that can be connected to a
Speed Comparator, either threshold or window. This feature
allows one or more independent thresholds to be placed on
the measured frequency.
Sensor anomaly: the parameter allows to configure the
saturation of the measured frequency in case of unavailability of
the measuring instrument
The choice is between
value (Default=650kHz, OVERSPEED) or to the minimum (0 Hz).
166
* 1000

Re solution [pulses/re
* 1000
[µm/pulse]
(e.g., disconnected
saturating to
MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC
KEY:
f = frequency
Rpm = rotational speed
Resolution = measurement
Speed = linear speed
Pitch = sensor pitch
v]
sensor).
the maximum
8540780 • 25/01/2023 • Rev.43