Delta Electronics Network Device VFD-S User Manual page 86

Frequency
output
frequency
motor
speed
operation
command RUN
2-03
PWM Carrier Frequency Selections
Power
Setting Range
Factory Setting
This parameter determines the PWM carrier frequency of the AC motor drive.
Carrier
Frequency
3kHz
10kHz
From the table, we see that the PWM carrier frequency has a significant influence on the
electromagnetic noise, AC motor drive heat dissipation, and motor acoustic noise.
2-04 Motor Direction Control
Settings
The parameter determines whether the AC drive can operate in the reverse direction.
Revision August 2008, SE09, SW V2.61
stops according to
decel eration time
STOP
ramp to stop and free run to stop
115V/230V/460V Series
Electromagnetic
Acoustic
Noise or leakage
Noise
Minimal
Significant
Minimal
Significant
d0 Enable forward/reverse operation
d1 Disable reverse operation
Frequency
output
frequency
motor
speed
Time
operation
command
0.25 to 3hp (0.2kW to 2.2kW)
d3 to d10 kHz
d10 kHz
Heat
Dissipation
current
Minimal
Significant
Chapter 5 Parameters|VFD-S Series
free run to stop
RUN
Current
Wave
Minimal
Significant
Factory Setting: d0
Time
STOP
Unit: 1
5-29