Omron SYSDRIVE 3G3EV User Manual page 69

Preparing for Operation
n37
Carrier Frequency
Setting range
This constant is used to set a pulse-width-modulated (PWM) carrier frequency.
Value
1 2.5 (kHz)
2 5 (kHz)
3 7.5 (kHz)
4 10 (kHz)
5 12.5 (kHz)
Note 1. The setting range for the 400-VAC class is "1 to 5."
Note 2. The factory setting for the 3G3EV-A4015-CUE is "3."
Note 3. As the cable between the Inverter and the motor becomes longer, a high-fre-
quency leakage current from the cable increases, causing the Inverter output
current to increase as well. This may also affect peripheral devices. To prevent
this, adjust the carrier frequency according to the following standards:
S Cable length of 50 meters or less: 10 kHz or less
S Cable length of 50 to 100 meters: 5 kHz or less
Note 4. With the 400-VAC class, the continuous output current cannot be used to 100%
of the rated value if the constant is set to "5" for Inverters of 0.75 kW or less or if it
is set to "4" or "5" for an Inverter of 1.5 kW.
Set the constant so that the continuous output current does not exceed the val-
ues shown in the following tables.
400-VAC Inverters of 0.75 kW or Less
Carrier frequency set value
1 to 4
5
400-VAC Inverter of 1.5 kW
Carrier frequency set value
1 to 3
4
5
1, 2, 3, 4
(see note 1)
Up to 100% of the rated output
Up to 90% of the rated output
Up to 100% of the rated output
Up to 85% of the rated output
Up to 75% of the rated output
Factory setting 4 (10 kHz)
Carrier frequency
Max. continuous output current
Max. continuous output current
Chapter 4
(see note 2)
4-27