Power Electronics SD 300 Series, Руководство по началу работы

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POWER ELECTRONICS SD300
DESCRIPTION OF PROGRAMMING PARAMETERS
141
Group 4: Control Functions → Cn
Screen Description
Default
value
Range Function
Set on
RUN
Cn.4
Modulation
frequency
3.0kHz -
Adjust motor operational noise by varying
the commutation frequency in the motor
output stage
If the frequency is set high, it reduces
operational noise from the motor, and if it is
set low, the operational noise from the motor
increases.
Default value and range for this parameter
depend on the load rate:
Normal load : 2kHz (Max 5kHz).
Heavy load : 3kHz (Max 15kHz).
NO
Cn.5
Modulation
mode Normal
PWM
0 to 1
Change the modulation to reduce the heat
loss and leakage current from the drive:
OPT. DESCR. FUNCTION
0
Normal
PWM No changes to load rate.
1
Low
Leakage
PWM
Reduces heat loss and
leakage
current
compared to Normal
PWM, but the motor noise
increases.
NO
Cn.9
Pre-excitation
time
1.00s
0.00 to
60.00s
Set the initial excitation time. Pre-excitation
is used to start the operation after
performing excitation up to the motor’s rated
flux.
NO