X20 system modules • Other functions • X20CM4810
X20 system User's Manual 3.10
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Noise
In this configuration, the noise from a quadrant of the respective signal on the selected channel that is within the
frequency band is calculated.
To do this, the configured maximum frequency of the signal on the selected channel is divided by 4. This results
in 4 quadrants. A configuration can then be used to select one of the 4 quadrants in which the noise should be
determined.
The following signals can be selected for each channel:
•
Raw acceleration signal
•
Raw velocity signal. Equal to 0 if the speed calculation is disabled.
•
Enveloped acceleration signal
•
Enveloped velocity signal. Equal to 0 if the speed calculation is disabled.
This configuration allows slippage to be effectively measured, for example. The higher the friction, the more noise
that is created.
ActSpeed01-04
Data point for the current speed to calculate FrequencyBands01-32 as long as they have been configured as being
speed-dependent.
The current speed must be specified in 1/100 Hz. In Function model 0 - Standard, Automation Runtime handles
this. The current speed is defined in hertz.
If the 4 different speed data points are not sufficient, e.g. for several different gear ratios, the speed ra-
tio can also be included when calculating the standardized damage frequency for the frequency band
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