YASKAWA OYMC V1000

1.3 C: Tuning
90 YASKAWA ELECTRIC SIEP C710606 10A YASKAWA AC Drive - V1000 PRELIM. Programming Manual
Note: By changing the Duty Mode the drive maximum applicable motor power changes and the E2-
 and E4- parameters are automatically set to appropriate values.
■ C6-02: Carrier Frequency Selection
Parameter C6-02 sets the switching frequency of the drive’s output transistors. It can be
changed in order to reduce audible noise and also reduce leakage current.
Note: The drive rated current is reduced when the carrier frequency is set higher than the default value.
Refer to the Rated Current Depending on Carrier Frequency on page 92.
Settings:
Note: Swing PWM uses 2.0 kHz carrier frequency as a base but by applying special PWM patterns the
audible noise of the motor is kept low.
Use the following guideline to set up the carrier frequency:
Over load
capability (OL2)
150% of drive rated Heavy Duty
current for 60 s
120% of drive rated Normal Duty current
for 60 s
L3-02 Stall
Prevention
during
Acceleration
150% 120%
L3-06 Stall
Prevention
during Run
150% 120%
Default Carrier
Frequency
8 / 10 kHz 2 kHz Swing PWM
No. Parameter Name Setting Range Default
C6-02
Carrier Frequency
Selection
1 to A, F
Determined by A1-02, o2-04.
Reset when C6-01 is changed.
C6-02 Carrier Frequency C6-02 Carrier Frequency C6-02 Carrier Frequency
1 2.0 kHz 5 12.5 kHz 9 Swing PWM 3
2 5.0 kHz 6 15.0 kHz A Swing PWM 4
3 8.0 kHz 7 Swing PWM 1
F
User defined
(C6-03 to C6-05)
4 10.0 kHz 8 Swing PWM 2
Mode Heavy Duty Rating (HD) Normal Duty Rating (ND)