Specifications

Chapter 4 Keyboard Operation and DisplayVFD‐G7 Series Frequency Inverter O
peration Manual

45
and if pressing the MODE key to enter function code editing state, the LED will display
0.0.0.0.0.,theoperatormustinputtheuserpasswordrightly,ortheoperatorcouldn’tenter.
Iftheuserwantstocancelthepasswordsetting,theyneedtoinputtherightuserpassword
andthensetF9.03to0.
Notes:pleasesetthepasswordcautiouslyandbearthepasswordinmind,thesystemfault
wouldbecausedifimproperoperation.
4.6 Faults Reset
In the fault status, the inverter will display the related fault information. The user could
reset the fault through STOP/RESET key in the keyboard or multi-function input
terminal, after the frequency inverter is fault reset, it will be in standby state. If the
frequency inverter is still in fault state, it indicates that the user need to check the fault of
the frequency inverter carefully and it would fault reset after finding the fault reasons and
solving the problem.
4.7 Auto-learning of Motor Parameters
The V/F control mode (F0.14=1) is advised for the square-torque load (Fans and water
pump type), other constant torque load can use the vector control mode (F0.14=0). If the
vector control operating mode is selected, the motor’s nameplate parameters must be
exactly input, the inverter will match the standard motor parameters according to the
nameplate parameters.
In order to obtain a good control performance, auto-learning motor’s parameters is
advised, the auto-learning steps is shown in the follow:
Firstly, select the start and stop signal to panel start and stop (F0.12=0) , then input the
follow parameters according to the motor’s nameplate:
F0.16: The motor’ rated voltage.
F0.17: The motor’s rated frequency;
F3.00: The motor’s rated power;
F3.01: The motor’s rated current；
F3.02: The motor’s rated rotate speed.