User Constant Tables
5-
25
Carrier Frequency: C6
User constants for the carrier frequency are shown in the following table.
* 1. The setting range depends on the control method of the Inverter.
* 2. The factory setting depends on the capacity of the Inverter.
* 3. The setting range depends on the capacity of the Inverter.
* 4. This constant can be monitored or set only when 1 is set for C6-01 and F is set for C6-02.
* 5. Displayed in Quick Programming Mode when motor 2 is set for a multi-function input.
Con-
stant
Num-
ber
Name
Description
Setting
Range
Fac-
tory
Setting
Change
during
Opera-
tion
Control Methods
MEMO
BUS
Regis-
ter
Page
Display
V/f
V/f
with
PG
Open
Loop
Vec-
tor
1
Flux
Vec-
tor
Open
Loop
Vec-
tor
2
C6-02
Carrier fre-
quency
selection
Select carrier wave fixed pattern.
Select F to enable detailed settings
using constants C6-03 to C6-05.
1 to F
6
*2
No
Q
Q
Q
A
No
*5
224H
4-6
4-16
6-38
Carrier
Freq Sel
C6-03
Carrier
frequency
upper limit
Set the carrier frequency upper limit and
lower limit in kHz units.
The carrier frequency gain is set as fol-
lows:
With the vector control method, the
upper limit of the carrier frequency is
fixed in C6-03.
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 fre-
quency
propor-
tional gain
00 to
99
*4
00
No
A
A
No
No
No
227H
-
Carrier
Freq Gain
C6-11
Carrier fre-
quency
selection
for open-
loop vec-
tor control
2
Select the carrier frequency when open-
loop vector control 2 is used.
1: 2 kHz
2: 4 kHz
3: 6 kHz
4: 8 kHz
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
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