Lenze i510 - Switching Frequency Changeover

7.6 Switching frequency changeover
The switching frequency of the inverter has an impact on the smooth running performance
and the noise generaon in the motor connected as well as on the power loss in the inverter.
The lower the switching fr
equency, the beer the concentricity factor, the smaller the power
loss and the higher the noise generaon.
Parameter Name / value range / [default seng] Info
0x2939
(PAR 305)
Switching frequency
(S
witching frequency)
•
Seng can only be changed if controller inhibit is
acve.
Selecon of the inverter switching frequency.
Abbreviaons used:
•
"Variable": adaptaon of the switching frequency as a funcon of the
current
•
"Drive-opt.": drive-opmised modulaon ("sine/delta modulaon")
•
"Fixed": xed switching frequency
•
"Min. Pv": addional reducon of power loss
1 4 kHz variable / drive-opmised
2 8 kHz variable / drive-opmised
3 16 kHz variable / drive-opmised
5 2 kHz xed / drive-opmised
6 4 kHz xed / drive-opmised
7 8 kHz xed / drive-opmised
8 16 kHz xed / drive-opmised
11 4 kHz variable / min. Pv
12 8 kHz variable / min. Pv
13 16 kHz variable / min. Pv
15 2 kHz constant/min. Pv
16 4 kHz constant/min. Pv
17 8 kHz constant/min. Pv
18 16 kHz constant/min. Pv
21 8 kHz variable / drive-opmised / 4 kHz
min.
22 16 kHz variable / drive-opmised / 4 kHz
min.
23 16 kHz variable / drive-opmised / 8 kHz
min.
31 8 kHz variable /min. Pv / 4 kHz min.
32 16 kHz variable /min. Pv / 4 kHz min.
33 16 kHz variable /min. Pv / 8 kHz min.
Motor control
Switching frequency changeo
ver
91
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