Lenze E82MV152_4B User Manual

Function library
Selection of control mode, optimisation of operating behaviour
7−17
L
EDB82MV752 EN 5.2
7.2.4 Skip frequencies
Description
With certain output frequencies, mechanical resonances might occur (e. g. fan).The skip frequencies
suppress these unwanted output frequencies. The bandwidth (nf) determines the skip frequency
range.
The function is in the block NSET1 before the ramp function generator.
Codes for parameter setting
Code Possible settings IMPORTANT
No. Name Lenze Selection
C0625* Skip frequency 1 0.00 0.00 {0.02 Hz} 650.00
 7−17
C0626* Skip frequency 2 0.00 0.00 {0.02 Hz} 650.00
C0627* Skip frequency 3 0.00 0.00 {0.02 Hz} 650.00
C0628* Bandwidth of skip
frequencies
0.00 0.00 {0.01 %} 100.00 Applies to C0625, C0626, C0627
Adjustment
) Note!
l Skip frequencies only effect main setpoints.
l C0625, C0626, C0627, C0628 are the same for all parameter sets.
 Set the required skip frequencies under C0625, C0626, C0627.
 C0628 defines the bandwidth for skip frequencies.
– Calculation of bandwidth (+f) for the respective skip frequency:
Df[Hz]  2  f
s
[Hz] 
C0628[%]
100%
f
s
Skip frequency
C0627
C0626
C0625
f
in
f
out
-f=2xC0625 x
C0628
100 %
-f=2xC0626 x
C0628
100 %
-f=2xC0627 x
C0628
100 %
8200vec525
Fig. 7−4 Effect of the skip frequencies
f
in
Input frequency of the function
f
out
Output frequency of the function

Lenze E82MV152_4B Specifications

General

Brand	Lenze
Model	E82MV152_4B
Category	DC Drives
Language	English