Specifications

VFD‐G7 Series Frequency Inverter Operation ManualChapter 6 Functional Parameter Detail
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147
frequencyinverterhasnooverloadprotectiontotheloadmotor.
1：Protection
The frequency inverter conducts overload protection to motor through inverse time limit
curve.
Decade：Faultresettimeslimitationisvalid
0：Faultresetisnotlimit
1：It need to rest 3 minutes if fault happens three times
within three minutes
continuously.
Considering the damage caused to frequency inverter due to frequent fault, this function
couldbestartedtoprotectthefrequencyinverter,atthesametime,thisfunctioncouldbe
used to remind the customer to check whether the parameter setting is valid or not or
eliminatingwhether
thearoundequipmentisnormalornot.
Hundred：Groundprotection
0：Invalid
1：Valid
Fb.02
Motor overload protection
point
Default: 100.0%
Setting scope ： 20.0 ～
120.0%
（motor rated current）
Themotorwillemitheatseriouslyifrunningoverloadinalongtime,thisparameterisused
tosetfactorthatthefrequencyinverterconductthermalrelayprotectiontotheloadmotor,
motor overload protection point=(allowed max load current/frequency inverter rated
current)*100%.
In the situation that the big frequency inverter drives
 the small motor, it need to set this
function code rightly to protect the motor. When one frequency inverter drive several
motorsandruninparallel,thethermalrelayprotectionfunctionwillloseefficacy,inorder
to protect the motor, please install the thermal protective relay at the wire entering
terminaloreachmotor.
Fb.03
Busbar over-voltage stall protection
point
Default: 130%
Setting scope：110～