Emotron VS10 User Manual

172 01-6203-01R3, CG Drives & Automation
7.6. Switching frequency changeover
The output voltage of the inverter is a DC voltage with sine-coded pulse width modulation
(PWM). This corresponds by approximation to a AC voltage with variable frequency. The
frequency of the PWM pulses is adjustable and is called "switching frequency".
Details
The switching frequency has an impact on the smooth running performance and the noise
generation in the motor connected as well as on the power loss in the inverter. The lower
the switching frequency, the better the concentricity factor, the smaller the power loss
and the higher the noise generation.
Parameter
Name / value range / [default setting]
Info
0x2939
(P305.00)
Switching frequency
(Switching freq.)
* Default setting depending on the size.
Selection of the inverter switching frequency.
Abbreviations used:
"Variable": adaptation of the switching frequency as a function of the
current
"Drive-opt.": drive-optimised modulation ("sine/delta modulation")
"Fixed": fixed switching frequency
"Min. Pv": additional reduction of power loss
1
4 kHz variable / drive-optimised
2
8 kHz variable / drive-optimised
3 16 kHz variable / drive-optimised
5
2 kHz fixed / drive-optimised
6
4 kHz fixed / drive-optimised
7
8 kHz fixed / drive-optimised
8
16 kHz fixed / drive-optimised
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-optimised / 4 kHz min.
22
16 kHz variable / drive-optimised / 4 kHz
min.
23
16 kHz variable / drive-optimised / 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.

Emotron VS10 Specifications

General

Brand	Emotron
Model	VS10
Category	Controller
Language	English