User Manual of EM730 Series Inverter 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.
This parameter can be adjusted to suppress motor oscillations during the open loop control (VVF). When the motor does not oscillate, this parameter should not be adjusted as little as possible or properly reduced. If the motor oscillates obviously, this parameter can be increased properly. This function is usually applied for load distribution when one load is driven by multiple motors. Droop control is to reduce the output frequency of the inverter with the load increasing, so that the output frequency of the motor drops more in the load driven by multiple motors, thus reducing the load on this motor and leading to evener distribution of the load on multiple motors.
This parameter refers to the output frequency drop of the inverter under the rated load.
210 F05.12 V/F slip filtering time 0.00 ~ 10.00 s 1.00 ● 0x050C Function code Function code name Parameter description Unit Default setting Attribute Mailing address F05.13 Oscillation suppression gain 0 ~ 20000 100 ● 0x050D F05.14 Oscillation suppression cutoff frequency 0.00 ~ 600.00 Hz 55.00 ● 0x050E Function code Function code name Parameter description Unit Default setting Attribute Mailing address F05.15 Droop control frequency 0.00 ~ 10.00 Hz 0.00 ● 0x050F Function code Function code name Parameter description Unit Default setting Attribute Mailing address F05.16 Energy saving rate 0.00 ~ 50.00 % 0.00 ● 0x0510