Duxe.ru VICSION VS500 63
F4.12 Motor over-load protection coefficient
Setting range：50 ~ 110（%）
The parameter is used for setting the sensitivity of thermal relay protection for applied motor. When the
rated current of applied motor doesn’t match with the rated current of inverter, it can accomplish the correct
heat protection for the motor to set this parameter.
The setting value of this parameter can be set by the following formula:
[F4.12]=
Rated current of motor
Inverter’s rated output current
×100％
While one inverter parallel running with multi-motors, the thermal relay protection of inverter will be invalid, in order to
protect the motor, please install the thermal relay on inlet terminals the motor.
F4.13 Automatic voltage regulation（AVR）
Setting range：0 ~ 3
The function of Automatic voltage regulation is to ensure the output voltage of inverter not to fluctuate with the input
voltage. When the range of fluctuation of power supply voltage is too heavy, and expect to motor have the stabilized
stator voltage and current, this function should be open.
0：Invalid
1： Dynamic valid
2： Static valid 3：Deceleration invalid
When user selects dynamic voltage regulation, fast dynamic voltage regulation can inhibit form increasing current
cause by DC voltage in motor deceleration. But it easy brings current resonance.
In acceleration and stabilization state, automatic voltage regulation is valid; but in deceleration state, it is invalid.
F4.14 Energy-saving running
Setting range：0 ~ 1
0： valid
1：Invalid
When F4.15 is 0, inverter will check motor load automatically and real-time rectify output voltage.
Energy-saving running works high efficiency under occasions that the range of freq. is small and the range
of speed is wide.
Because fan or pump has a specific relationship with rotation speed, it cans compendiary judge load state
according output freq. Low-freq. torque curve V/F is a typical example in energy-saving running. When user
takes low-freq. torque curve (F0.1 is 1 or2), function of energy-saving running needn’t valid.
F4.15 Intensity of energy-saving running
Setting range：30 ~ 90
It is used for setting the voltage regulating strength in energy-saving running. When inverter is in energy-saving
running state, output voltage will be automatically adjusted with load, to enable the motor running in the most efficient
state.
If the parameter is set larger, the energy-saving effect is better, and the running stability will be worse. The
client can set the parameter according to currently state
F4.16 Dead time of FWD&REV
Setting time：0.0 ~ 5.0 Sec
The parameter means that the duration at zero frequency when the inverter changes its running direction, and it is
shown as the following fig.6-20. FWD and REV dead time is set for the big inertia load which has the mechanical
dead zone.
VS500 series of general purpose inverter Duxe.ru
    "