Yaskawa AC Drive-P1000 Industrial Fan User Manual
Page 180
n
C6-03, C6-04, C6-05: Carrier Frequency Upper Limit, Lower Limit, Proportional Gain
These parameters set a user-defined or a variable carrier frequency. Set C6-02 to F to set the upper and lower limits and the
carrier frequency proportional gain.
No.
Parameter Name
Setting Range
Default
C6-03
Carrier Frequency Upper Limit
1.0 to 15.0 kHz
Determined by
C6-02
C6-04
Carrier Frequency Lower Limit
1.0 to 15.0 kHz
C6-05
Carrier Frequency Proportional Gain
0 to 99
Setting a Fixed User Defined Carrier Frequency
A carrier frequency between the fixed selectable values can be entered in parameter C6-03 when C6-02 is set to F.
In V/f Control, adjust parameter C6-04 to the same value as C6-03.
Setting a Variable Carrier Frequency (V/f Control)
In V/f Control, the carrier frequency can be set up to change linearly with the output frequency by setting the upper and lower
limits for the carrier frequency and the carrier frequency proportional gain (C6-03, C6-04, C6-05) as shown in
.
C6-03
C6-04
E1-04
x C6-05
Output Frequency
Output
Frequency
Max Output Frequency
Carrier Frequency
Figure 5.25 Carrier Frequency Changes Relative to Output Frequency
Note:
When C6-05 is set lower than 7, C6-04 is disabled and the carrier frequency will be fixed to the value set in C6-03.
5.3 C: Tuning
180
YASKAWA SIEP YAIP1U 01B AC Drive - P1000 Technical Manual