5.3 C: Tuning
YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual 197
C6-03, C6-04, C6-05: Carrier Frequency Upper Limit, Lower Limit, Proportional Gain
Use these parameters to set a user defined or a variable carrier frequency. To set the upper and lower limits and the carrier
frequency proportional gain, first set C6-02 to F.
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, parameter C6-04 must also be adjusted 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. To do this, set the upper
and lower limits for the carrier frequency and the carrier frequency proportional gain (C6-03, C6-04, C6-05) as shown in
Figure 5.43.
Figure 5.43
Figure 5.43 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.
C6-09: Carrier Frequency during Rotational Auto-Tuning
C6-09 determines what the carrier frequency should be while Rotational Auto-Tuning is performed.
This parameter rarely requires adjustment, but can be helpful solving problems with
overcurrent when Auto-Tuning a
high frequency motor or a low impedance motor. In such cases, first set C6-03 to high value, then set C6-09 = 1.
Note: This parameter is not available in models CIMR-A4A0930 and 4A1200.
Setting 0: Carrier Frequency = 5 kHz <1>
Setting 1: Same value set to C6-03 <2>
No. Parameter Name Setting Range Default
C6-03
<1> In AOLV/PM and CLV/PM control modes, the setting units and range are expressed as a percent (0.0 to 100.0%) instead of in Hz.
<2> The setting range is 1.0 to 5.0 for models CIMR-A4A0515 to 4A1200.
Carrier Frequency Upper Limit
1.0 to 15.0 kHz
<1> <2>
Determined by C6-02C6-04
Carrier Frequency Lower Limit (V/f Control only)
1.0 to 15.0 kHz <1> <2>
C6-05
Carrier Frequency Proportional Gain (V/f Control only)
0 to 99 <1>
No. Parameter Name Setting Range Default
C6-09 Carrier Frequency during Rotational Auto-Tuning 0, 1 0
<1> In PM control mode, this value is 2 kHz.
<2> In PM control mode, this value is the carrier frequency that is set in C6-02.
C6-03
C6-04
E1-04
×
C6-05
Output Frequency
Output
Frequency
Max Output Frequency
Carrier Frequency
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