X90 mobile modules
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X90 mobile system User's manual V 1.20 - Translation of the original manual
Damage to the outer ring is shown more clearly in the increase of the frequency known as the bearing damage
frequency. Damage to the outer ring is shown in the increase of the component of the outer ring damage frequency.
This bearing damage frequency is generally available from the bearing manufacturer.
Amplitude
[mg]
Frequency [Hz]
Harmonic of the base signal
Damage frequency
Figure 40: Selective characteristic value for outer ring damage
By configuring a characteristic value with a frequency range around the damage frequency, rolling bearing damage
to the outer ring can be detected at an early stage.
If frequencies are entered that are outside the minimum and maximum signal frequency for the selected channel,
then only the domains between the minimum and maximum frequency will be analyzed.
Amplitude
Frequency [Hz]
MaxFrequenzyRaw
configured to 1 kHz
Frequency band
configuration
Figure 41: Restricting the frequency band evaluation