User Manual of EM730/EM730E Series Inverter Output voltage Rated voltage of motor VF separation voltage Actual rise time 0 Set rise time Time t Fig. 7-20 Rise Time Description of VF Separation Voltage improve the low-frequency load capacity. It is used to compensate for the voltage drop caused by the stator resistor and wire, and As the load increases, the rotor speed of the motor will decrease. To make the rotor speed of the motor close to the synchronous speed under rated load, slip compensation can be enabled. When the motor speed is less than the target value, the set value of F05.11 can be increased. ★ : In the case of F05.11=0, slip compensation is invalid.
This parameter is valid only for the asynchronous motor. The slip is 100% during the quick start with large inertia and 0 when the frequency reaches the set value. Quick increase or decrease of the output frequency will cause overvoltage or overcurrent. F05.12 filtering can slow down the rise of voltage and current.
190 Function Default Function code name Parameter description Unit Attribute code setting F05.10 Compensation gain of V/F stator voltage drop 0.00 - 200.00 % 100.00 ● Function Default Function code name Parameter description Unit Attribute code setting F05.11 V/F slip compensation gain 0.00 - 200.00 % 100.00 ● F05.12 V/F slip filtering time 0.00 - 10.00 s 1.00 ● Function Default Function code name Parameter description Unit Attribute code setting F05.13 Oscillation suppression gain 0 - 20000 100 ● F05.14 Oscillation 0.00-600.00 Hz 55.00 ●