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Carrier Frequency: C6
User parameters for the carrier frequency are shown in the following table.
Name
Parameter
Number
Display
Carrier
Selects the number of pulses per second
Frequency
of the output voltage waveform. Setting
Selection
range determined by C6-01 setting.
0: Low noise
1: Fc = 2.0 kHz
2: Fc = 5.0 kHz
C6-02
3: Fc = 8.0 kHz
Carrier
4: Fc = 10.0 kHz
Freq Sel
5: Fc = 12.5 kHz
6: Fc = 15.0 kHz
OF: Program (Determined by the
settings of C6-03 thru C6-05)
Carrier
Sets the relationship of output frequency
Frequency
to carrier frequency when C6-02 = OF.
Upper
Note: Carrier frequency is set to C6-03
C6-03
Limit
(upper limit) when operating in Vector
Carrier
Control Mode.
Freq Max
Carrier
Carrier frequency
Frequency
Lower
C6-04
Limit
Carrier
Freq Min
Carrier
K is a coefficient that depends on the
Frequency
setting of C6-03.
Proportional
C6-05
C6-03 ≥ 10.0 kHz: K = 3
Gain
10.0 kHz > C6-03 ≥ 5.0 kHz: K = 2
Carrier
5.0 kHz > C6-03: K = 1
Freq Gain
Carrier
Frequency
Selects the carrier frequency during
Selection
Vector Control 2 wo/PG.
for
1: 2kHz (3-phase modulation)
C6-11
Open-loop
2: 4kHz (3-phase modulation)
Vector 2
3: 6kHz (3-phase modulation)
4: 8kHz (3-phase modulation)
Carrier
Freq Sel
* 1. The setting range depends on the control method of the Drive.
* 2. Initial values vary depending on drive capacity.
* 3. Setting range varies based on drive capacity.
* 4. This parameter can be monitored or set only when 1 is set for C6-01 and F is set for C6-02.
* 5. Quick Settings are used if Multi-Function Input is set for two motors.
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Setting
Description
Range
0 to F
2.0
to
15.0
*3 *4
0.4
to
15.0
*3 *4
Output frequency x (C6-05) x K
Output
frequency
(Max. output frequency)
0
to
99
*4
1 to 4
User Parameter Tables
Control Methods
Fac-
Change
Open
V/f
Flux
tory
during
Loop
V/f
with
Vec-
Setting
Operation
Vector
PG
tor
1
6
No
Q
Q
Q
*2
15.0
No
A
A
A
kHz
*2
15.0
No
A
A
No
No
kHz
*2
0
No
A
A
No
No
4
No
No
No
No
No
*2
*5
*5
*5
Open
MODBUS
Loop
Register
Vector
2
No
Q
224H
*5
A
No
225H
No
226H
No
227H
Q
22DH
*5
27
5-
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Troubleshooting
