Specifications

 Chapter6FunctionalParameterDetailVFD‐G7SeriesFrequencyInverterOperationManual

102
Carrier
Frequency↑
Motor temperature rising↓
Output current smoothness↑
Temperature rise of frequency
inverter↑
Leakage current↑
External radiated interface↑
The relation between machine type and carrier frequency is as the following table:
Carrier
Frequency
machine type
Max Carrier
Frequency
(kHz)
Min
Frequency
(kHz)
Default
(kHz)
0.75～11kW
15.0 0.5 4.0
15～55kW
8.0 0.5 3.0
75～400kW
6.0 0.5 2.0
Whenthe outputfrequency of frequency inverter is 0Hz, and it is in vector control or V/F
control and torque lift, there is the voltage output in the frequency inverter, if running in
0Hzinalongtermandthereisvoltageoutput,themotorheatdissipationisbad,itis
easyto
cause the motor heating. The user could set a certain output voltage holding time, after
exceeding this holding time, the output voltage will turn to 0, which could prevent the
motorfromoverheating.
F0.23
Voltage of energy
consumption brake value
Default：130.0%（380V
series）
120.0%（ 220V
series）
Setting Range:115.0～
140.0%(Standard
bus-wire voltage）
Thisfunctioncodeisthestartvoltageofsettingenergyconsumptionbrakingunit,ifweset
thisvalueproperly,whichcouldbraketheoverloadeffectively.
F0.24
Given frequency is less than frequency
lower limit
Default：0 Setting Range：0～2
0：Operatingtolowerlimitfrequency