Setting a Variable Carrier Frequency (V/f Control only)
In V/f Control, the carrier frequency can be
set up to change linearly with the output frequency. In this case the upper and
lower limits for the carrier frequency and the carrier frequency proportional gain (C6-03, C6-04, C6-05) have to be set as
shown in Figure 5.31.
C6-03
C6-04
E1-04
x C6-05 x K*
Output Frequency
Output
Frequency
Max Output Frequency
Carrier Frequency
Figure 5.31 Carrier Frequency Changes Relative to Output Frequency
K is a coefficient determined by the value of C6-03:
• 10.0 kHz > C6-03 ≥ to 5.0 kHz: K = 2
• 5.0 kHz > C6-03: K = 1
• C6-03 ≥ 10.0 kHz: K = 3
Note: 1. A carrier
frequency error (oPE11) will occur when the carrier frequency proportional gain is greater than 6 while C6-03 is less than
C6-04.
2. 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.
n
Rated Current Depending on Carrier Frequency
The tables below show the drive output current depending on the carrier frequency settings. The 2 kHz value is equal to
the Normal Duty rated current, the 8/10 kHz value is equal to the Heavy Duty rated current. The carrier frequency
determines the output current linearly. Use the data below to calculate output current values for carrier frequencies not
listed in the tables.
Note: In Heavy Duty mode the maximum rated output current is equal to the 8/10 kHz value, even if the carrier frequency is reduced.
Table 5.12 Drives with Heavy Duty Default Carrier Frequency of 10 kHz
200 V Single-Phase Units 200 V Three-Phase Units
Drive
Model
Rated Current [A]
Drive
Model
Rated Current [A]
2 kHz 10 kHz 15 kHz 2 kHz 10 kHz 15 kHz
BA0001 1.2 0.8 0.6
2A0001 1.2 0.8 0.6
BA0002 1.9 1.6 1.3 2A0002 1.9 1.6 1.3
BA0003 3.5 3.0 2.4 2A0004 3.5 3.0 2.4
BA0006 6.0 5.0 4.0 2A0006 6.0 5.0 4.0
Table 5.13 Drives with Heavy Duty Default Carrier Frequency of 8 kHz
200 V Single-Phase Units 200 V Three-Phase Units 400 V Three-Phase Units
Drive
Model
Rated Current [A]
Drive
Model
Rated Current [A]
Drive
Model
Rated Current [A]
2 kHz 8 kHz 15 kHz 2 kHz 8 kHz 15 kHz 2 kHz 8 kHz 15 kHz
BA0010 9.6 8.0 6.4
2A0008 8.0 6.9 5.5 4A0001 1.2 1.2 0.7
BA0012 12.0 11.0 8.8 2A0010 9.6 8.0 6.4 4A0002 2.1 1.8 1.1
BA0018 17.5 17.5 14.0 2A0012 12.0 11.0 8.8 4A0004 4.1 3.4 2.0
— — — — 2A0018 17.5 14.0 11.2 4A0005 5.4 4.8 2.9
— — — — 2A0020 19.6 17.5 14.0 4A0007 6.9 5.5 3.3
— — — — 2A0030 30.0 25.0 20.0 4A0009 8.8 7.2 4.3
— — — — 2A0040 40.0 33.0 26.4 4A0011 11.1 9.2 5.5
— — — — 2A0056 56.0 47.0 37.6 4A0018 17.5 14.8 8.9
— — — — 2A0069 69.0 60.0 48.0 4A0023 23.0 18.0 10.8
— — — — — — — — 4A0031 31.0 24.0 14.4
— — — —
— — — —
4A0038 38.0 31.0 18.6
5.3 C: Tuning
152
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
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