a. The function of the stall prevention during the deceleration is to maintain a
constant speed when the deceleration is stalling.
b. When connecting a dynamic brake unit, F3.07 function can be disabled according
to the operation requirement
c. If the DC bus voltage of the drive is higher than the dynamic brake voltage level
when drive stops, the operation panel or external keypad will display “Hv”. “RUN”
key of the operation panel and digital keypad can’t start the drive. If the DC bus
voltage is less than the dynamic brake voltage level, the drive will be
automatically recovered and the display will be back to the main display.
【F3.09】 Motor Slipompensation
a. The slip of motor is variable depending on the load. When the load current is over
the level of slip compensation, the drive will compensate the output frequency to
output constant speed. The setting range is -59.9~60.0Hz.
b. Compensation frequency:
on(F3.09)compensati Slip
(F4.09)) current loadno.08)current(F4 Rated
(F4.09)) current loadnocurrent Loading
oncompensati Freq.
(
(
【F3.10】 Frequency Response Time of Motor Slip Compensation
a. Setting the frequency response time of motor slip compensation. The unit is 5ms.
b. Decreasing the setting value when the response time is too slow. When the
response time of motor slip compensation is too fast causing the rotational speed
unstable, increasing the setting value. The setting range is 1~255
【F3.18】 Automatic Voltage Regulation (AVR)
a. Function: When the power source is fluctuation, the drive will adjust output
voltage automatically to stabilize the V/F output control.
b. When AVR is set to “0”, the reference voltage bases on the setting of power
source voltage (F0.05).
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