Parameter Name Description Setting Range Default
C6-02
Carrier
frequency
1 : 2.0 kHz
2 : 5.0 kHz
3 : 8.0 kHz
4 : 10.0 kHz
5 : 12.5 kHz
6 : 15.0 kHz
7: Swing PWM
F : User defined (C3-03 to C3-05)
1 to F
Depends on
drive size
Note: Settings 7 through A for parameter C6-02 use a Swing PWM equivalent to a 2 kHz audible noise. This
function turns the motor noise into a less obtrusive white noise.
Note: The upper limit for the carrier frequency is determined by drive capacity.
Precautions when setting parameter C6-02:
Symptom Possible Solution
Speed and torque are unstable at low speeds.
Lower the carrier frequency.
Noise from the drive is affecting peripheral devices.
Excessive leakage current from the drive.
Wiring between the drive and motor is too long.
<1>
Motor acoustic noise is too loud. Increase the carrier frequency or use Swing PWM.
<1> The carrier frequency may need to be lowered if the motor cable is too long. Refer to the table below.
Wiring Distance Up to 50 m Up to 100 m Greater than 100 m
C6-02 (Carrier Frequency Selection) 1 to F (15 kHz) 1 to 2 (5 kHz), 7 1 (2 kHz), 7
Carrier Frequency Setting Error (oPE11)
A carrier frequency setup error (oPE11) will occur when carrier frequency gain (C6-05) is
greater than 6 and C6-03 < C6-04.
Note: Refer to Troubleshooting without Fault Display on page 143 for information on operator errors (oPE).
n
Carrier Frequency and Drive Overload Current Level
With C6-01 set to 1, the carrier frequency setting defines drive output current level.
Table 4.5 Current Derating by Carrier Frequency Setting
Single-Phase 200 V Three-Phase 200 V Three-Phase 400 V
Model
(Capacity)
Carrier
Frequency
(kHz)
Output
Current
(A)
Model
(Capacity)
Carrier
Frequency
(kHz)
Output
Current
(A)
Model
(Capacity)
Carrier
Frequency
(kHz)
Output
Current
(A)
BA0001
0.2 kW/
0.1 kW
2 1.2
2A0001
0.2 kW/
0.1 kW
2 1.2
— — —10 0.8 10 0.8
15 0.6 15 0.6
BA0002
0.4 kW/
0.2 kW
2 1.9
2A0002
0.4 kW/
0.2 kW
2 1.9
4A0001
0.4 kW/
0.2 kW
2 1.2
10 1.6 10 1.6 8 1.2
15 1.3 15 1.3 15 0.7
4.5 Basic Operation
YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
95
4
Start-Up Programming
& Operation
2/6/2008-14:44
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