X20 system modules • Other functions • X20CM4810
2164
X20 system User's Manual 3.10
FrequencyBandConfig
Name:
FrequencyBand01Config to FrequencyBand32Config
General configuration of individual frequency bands.
Each frequency band can be calculated on any channel with any of the four speed data points ("ActSpeed01-04").
Data type
Value
UINT
See bit structure.
Bit structure:
Bit
Description
15
Reserved = 0
14-13
Selects the quadrant to calculate the noise
Value
Description
3
4 quadrant from 3/4 MaxFrequency to MaxFrequency of the respective signal (raw signal or envelope signal) on the channel
2
3 quadrant from 1/2 MaxFrequency to 3/4 MaxFrequency of the respective signal (raw signal or envelope signal) on the channel
1
2 quadrant from 1/4 MaxFrequency to 1/2 MaxFrequency of the respective signal (raw signal or envelope signal) on the channel
0
1 quadrant from MinFrequency to 1/4 MaxFrequency of the respective signal (raw signal or envelope signal) on the channel
12
Enables noise calculation instead of RMS (0 = Off, 1 = On)
As soon as this is enabled, the speed-dependent and harmonic settings are ignored.
11-8
Selects which ActSpeed data point should be used for the calculation if the frequency band is speed-dependent
Value
Description
15 - 4
Invalid
3
ActSpeed04
2
ActSpeed03
1
ActSpeed02
0
ActSpeed01
7
Includes harmonic frequencies in the calculation (0 = Off, 1 = On)
If enabled, all harmonic frequencies up to the maximum frequency are included in the calculation.
Information:
The harmonic frequencies can also include frequency portions that are the result of damage at other positions. This can lead to
a misinterpretation of the measurement.
6
Speed-dependent (0 = Off, 1 = On)
If enabled, the ActSpeed data point is used with the entered FrequencyBandDmgFreq60rpm and the configured FrequencyBandTolerance to
calculate the frequency band.
If disabled, then FrequencyBandLowerFrequency and FrequencyBandUpperFrequency are used to calculate the frequency band.
5-4
Selects the signal for calculating the frequency band
Value
Description
3
Enveloped acceleration signal
2
Raw acceleration signal
1
Enveloped velocity signal
Only calculated if the EnableVelocityCalculation bit (configured in the "SensorConfig01" register) of the respective channel is set;
otherwise, 0 is output.
0
Raw velocity signal
Only calculated if the EnableVelocityCalculation bit (configured in the "SensorConfig01" register) of the respective channel is set;
otherwise, 0 is output.
3-0
Selects which input channel should be used to calculate the frequency band
Value
Description
15 - 4
Invalid
3
Channel 4
2
Channel 3
1
Channel 2
0
Channel 1
Table 748: FrequencyBand01Config - FrequencyBand32Config