User Manual of EM760 High-Performance Inverter This parameter refers to the output frequency drop of the inverter under the rated load. The energy saving rate (F05.16) reflects the energy saving capacity. The larger the set value, the more energy will be saved. If the set value is 0.00, energy saving will be invalid. When energy-saving operation is valid, energy saving control will be enabled once the energy saving conditions are met and have been maintained for the energy saving time (F05.17).
7.1.2 Asynchronous motor SVC control The most important part in asynchronous motor SVC control is to input rated motor parameters as per the nameplate, and disconnect the motor from the load for rotary self-learning of the asynchronous motor as far as possible. If such disconnection can’t be secured, static self-learning can be performed instead. However, the result will be less good than rotary self-learning. (1) In case of low interference resistance, adjust F06.00~F06.05, boost proportional gain, and reduce integral time. (2) In case of motor vibration, adjust F06.00~F06.05, reduce proportional gain, and increase integral time.
(3) In case ofreversing upon start-up, reduce appropriately pre-excitation time F04.07 and pre- excitation current F04.06. (4) If some braking force is required for zero speed, one ofthe solutions is to set the SVC zero frequency processing method F06.17 as 0: braking, and adjust torque by regulating F06.18 in the meantime. Instructions on vector control parameters:
205 Function code Function codename Parameter description Unit Default setting Attribute F05.16 Energy saving rate 0.00~50.00 % 0.00 ● F05.17 Energy saving action time 1.00~60.00 s 5.00 ● Function code Function codename Parameter description Unit Default setting Attribute F06.00 Speed proportional gain ASR P1 _ 0.00~100.00 12.00 ● F06.01 Speed integral time constant ASR T1 _ 0.000~30.000 0.000: no integral s 0.250 ● F06.02 Speed proportional gain ASR P2 _ 0.00~100.00 10.00 ● F06.03 Speed integral time constant ASR T2 _ 0.000~30.000 0.000:
no integral s 0.300 ● F06.04 Switching frequency 1 0.00 to switching frequency 2 Hz 5.00 ● F06.05 Switching frequency 2 Switching frequency 1 to maximum frequency F00.16 Hz 10.00 ●