Omron SYSDRIVE 3G3MV SERIES - Setting the Carrier Frequency

6-23
6-4 Setting the Carrier Frequency
The carrier frequency of the 3G3MV can be fixed or varied in proportion to the output
frequency.
n080
Carrier Frequency Selection Register 0150 Hex Changes during
operation
No
Setting
range
1 to 4, 7 to 9 Unit of
setting
1 Default setting (See
note.)
Note The default setting varies with the capacity of the Inverter model.
Set Values
Value Description
1 2.5 kHz
2 5.0 kHz
3 7.5 kHz
4 10.0 kHz
7 2.5 kHz (12×): 12 times as high as output frequency (from 1.0 to 2.5 kHz)
8 2.5 kHz (24×): 24 times as high as output frequency (from 1.0 to 2.5 kHz)
9 2.5 kHz (36×): 36 times as high as output frequency (from 1.0 to 2.5 kHz)
• The default setting does not need any changes in normal operation.
• Change the default setting in the following cases.
The wiring distance between the Inverter and motor is long:
Set the Inverter to a lower carrier frequency.
Reference carrier frequency: Wiring distance ≤ 50 m: 10 kHz
50 m < Wiring distance ≤ 100 m: 5 kHz
Wiring distance > 100 m: 2.5 kHz
Note The carrier frequency changes as shown in the following graph with 7 through 9 set in n46.
Carrier Frequency (n080: 7 through 9)
Carrier
Frequency
83.3 Hz (Set value: 7)
41.6 Hz (Set value: 8)
27.7 Hz (Set value: 9)
208.3 Hz (Set value: 7)
104.1 Hz (Set value: 8)
69.4 Hz (Set value: 9)
Output frequency
Advanced Operation Chapter 6