MODULAR SAFETY INTEGRATED CONTROLLER MOSAIC
8540780 • 25/01/2023 • Rev.43 171
Frequency zero speed/Frequency1/ Frequency2: It shows
the maximum calculated frequency values 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:
v][pulses/resolutionRe
60
[rev/min]rpm
[Hz]f =
2. Linear axis, rotational sensor. The frequency obtained is:
v][pulses/reRe
[mm/rev]*60
1000*[m/min]
[Hz] solution
pitch
speed
f =
3. Linear axis, linear sensor. The frequency obtained is:
[µm/pulse]solutionRe
1000*[mm/s]speed
[Hz]f =
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 (e.g., disconnected sensor).
The choice is between saturating to the maximum
value (Default=650kHz, OVERSPEED) or to the minimum (0 Hz).
KEY:
f = frequency
Rpm = rotational speed
Resolution = measurement
Speed = linear speed
Pitch = sensor pitch
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