Chziri ZVF9V-G/P, User Manual

Page: 54 / 87

6.1 Schedule of Function Parameters 6.1 Schedule of Function Parameters
F2.42 Carrier frequency Setting range: 1.0~15.0KHz Default value: as per spec.
This function is used to set the carrier frequency of the inverter's output PWM wave
and should be properly regulated. The maximum value of carrier frequency is
determined in accordance with power specifications. Refer to Fig.6-8 for details on
carrier frequency value, electromagnetic noise, leakage current and heating
conditions.
Carrier
frequency electromagnetic
noise Leakage
current Heating
value
Interference
High
High High
High
Low
Low
Low Low
Fig.6-8 Carrier Frequency Diagram
Cautions
1.Due to rich ultra harmonics existed in output current, under
setting of carrier frequency will result in distortion of the
waveform of output current, which may cause larger noise of motor,
but less loss and lower temperature rise instead.
2.Increasing the setting value for carrier frequency can reduce
noise of the motor, but the inverter's temperature will rise due to
greater loss of power elements. If the carrier frequency value is
higher than factory default setting, then the inverter shall be
derated before use.
F2.43 PWM adaptive control Setting range: 0~1 Default value: 1
0 Fixed carrier
The carrier does not change as the output frequency changes.
1
Auto carrier regulation
The carrier will automatically make adaptation when there is some change in
frequency to improve the pulse of low frequency torque.
Group F3 User Management Interface Parameters
F3.00 LCD Language Selection Setting range: 0~1 Default value: 0
This function is used to set languages on operator panel. It is valid only for LCD
display keyboard.
1
Chinese
2 English Remain temporarily
F3.01 Parameter Initializing Setting range: 0~2 Default value: 0
0 No operation.
This indicates the inverter is in the normal state of data reading and writing.
1
Restore to default setting.
All the parameters in the parameter group F0~FA will restore to the default value.
2
Clear failure records.
This will clear all the history failure records.
Caution
When F3.01=1, it is invalid for key control parameter F0.00,
F0.01, F0.04 and F0.10, which can be modified by hand only. This
function will remove all the results received from motor
parameter self-learning. If vector control mode is set, then self-
learning shall be performed again.
F3.02 Parameter Write Protection Setting range: 0~2 Default value: 0
This is used to set parameters' modification rights with detailed setting as follows:
0
All the parameters are allowed to be modified but some parameters can not be
modified during operation.
1
Other parameters are not allowed to be modified except digital frequency setting
and this parameter.
2
Other parameters are prohibited to be modified except this parameter.