Specifications

 Chapter6FunctionalParameterDetailVFD‐G7SeriesFrequencyInverterOperationManual
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0：Invalid
1：Alarmandruninfixedfrequency.
FAULTindicatorlightflash,therunningfrequencyisfixedatthefrequencysetbyF7.14.
2：Faultstop
FaultE024。
F7.02
Keyboard digital PID
reference
Default: 0.0%
Setting scope：0.0%～100.0%
ThisparameterneedtobesetinkeyboardpresetofPIDgoalsource.
F7.03 Proportional gain (KP)
Default: 5.00
Setting scope：0.00～50.00
F7.04 Integral time (Ti)
Default: 0.40s
Setting scope：0.01～50.00s
Proportionalgain(Kp):determinesintensityofPIDconditioner.Thebiggertheproportional
gainofKP,thebiggerintensity.
Integral time (Ti): determines the integral speed of the PID conditioner for error between
thePIDreferenceandfeedbackvalue.
F7.05 The limit of PID control slip
Default: 0.0%
Setting scope：0.0～100.0%
This parameter defines the max deviation relative to close‐loop set point, PID regulator
stops operation when the feedback value is within this range. Setting this parameter
correctly is helpful to improve the system output accuracy and stability. This function is
mainlyusedinthesystemwheretherequirementoncontrol
accuracyislowandthereisno
frequentadjustment,suchastheconstantvoltagewatersupplysystem.
F7.06
The value of feedbac
k
disconnection detected
Default: 0.0%
Setting scope ： 0.0 ～
100.0%
F7.07
Feedback disconnection detected
time
Default: 10.0s
Setting scope ： 0.0 ～
3600.0s
F7.08 Feedback disc onnection alarm
Default: 25.00Hz
Setting scope ： 0.00 ～