5-9
·Set the rated motor frequency as the maximum voltage frequency, and set the rated
motor voltage as the maximum voltage.
·The vertical-axis load or the load with high viscous friction may require high torque at
low speed. If the torque is insufficient at low speed, increase the voltage in the low-
speedrangeby1V,providedthatnooverload(OL1orOL2)isdetected.Ifanoverload
is detected, decrease the set values or consider the use of an Inverter model with a
higher capacity.
·Therequiredtorqueoffan or pump control increasesinproportiontothesquare ofthe
speed. By setting a quadratic V/f pattern to increase the voltage in the low-speed
range, the power consumption of the system will increase.
Basic Operation Chapter 5
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