Setting The Carrier Frequency - Omron SYSDRIVE 3G3MV SERIES User Manual

Advanced Operation
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
Setting 1 to 4, 7 to 9
range
Note The default setting varies with the capacity of the Inverter model.
Set Values
Value
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:
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
Wiring distance ≤ 50 m:
50 m < Wiring distance ≤ 100 m:
Wiring distance > 100 m:
83.3 Hz (Set value: 7)
41.6 Hz (Set value: 8)
27.7 Hz (Set value: 9)
Register 0150 Hex
Unit of 1
setting
Description
208.3 Hz (Set value: 7)
104.1 Hz (Set value: 8)
69.4 Hz (Set value: 9)
Chapter 6
Changes during No
operation
Default setting (See
note.)
10 kHz
5 kHz
2.5 kHz
Output frequency
6-23