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Carrier frequency: c6 – Yaskawa G7 Drive User Manual

Page 138

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User Parameter Tables

5-

27

„

Carrier Frequency: C6

User parameters for the carrier frequency are shown in the following table.

* 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.

Parameter

Number

Name

Description

Setting

Range

Fac-

tory

Setting

Change

during

Operation

Control Methods

MODBUS

Register

Display

V/f

V/f

with

PG

Open

Loop

Vector

1

Flux

Vec-

tor

Open

Loop

Vector

2

C6-02

Carrier
Frequency
Selection

Selects the number of pulses per second
of the output voltage waveform. Setting
range determined by C6-01 setting.
0: Low noise
1: Fc = 2.0 kHz
2: Fc = 5.0 kHz
3: Fc = 8.0 kHz
4: Fc = 10.0 kHz
5: Fc = 12.5 kHz
6: Fc = 15.0 kHz
OF: Program (Determined by the

settings of C6-03 thru C6-05)

0 to F

6

*2

No

Q

Q

Q

Q

No

*5

224H

Carrier
Freq Sel

C6-03

Carrier
Frequency
Upper
Limit

Sets the relationship of output frequency
to carrier frequency when C6-02 = OF.
Note: Carrier frequency is set to C6-03
(upper limit) when operating in Vector
Control Mode.

K is a coefficient that depends on the
setting of C6-03.
C6-03

≥ 10.0 kHz: K = 3

10.0 kHz > C6-03

≥ 5.0 kHz: K = 2

5.0 kHz > C6-03: K = 1

2.0

to

15.0

*3 *4

15.0

kHz

*2

No

A

A

A

A

No

225H

Carrier
Freq Max

C6-04

Carrier
Frequency
Lower
Limit

0.4

to

15.0

*3 *4

15.0

kHz

*2

No

A

A

No

No

No

226H

Carrier
Freq Min

C6-05

Carrier
Frequency
Proportional
Gain

0

to

99

*4

0

No

A

A

No

No

No

227H

Carrier
Freq Gain

C6-11

Carrier
Frequency
Selection
for
Open-loop
Vector 2

Selects the carrier frequency during
Vector Control 2 wo/PG.
1: 2kHz (3-phase modulation)
2: 4kHz (3-phase modulation)
3: 6kHz (3-phase modulation)
4: 8kHz (3-phase modulation)

1 to 4

4

*2

No

No

*5

No

*5

No

*5

No

*5

Q

22DH

Carrier
Freq Sel

Carrier frequency

Output frequency x (C6-05) x K

(Max. output frequency)

Output

frequency