User Manual of EM730 Series Inverter The code parameters F05.01 to F05.06 are valid when the multi-point polyline VF is selected (F05.00=1). percentage of output voltage, linearized in sections within different input ranges. All V/F curves are dependent on the curve set by the percentage of input frequency and the The rated frequency of the motor is the final frequency of the V/F curve, and also the frequency corresponding to the highest output voltage. Percentage of the input frequency: rated frequency of the motor = 100.0%; percentage of the output voltage: rated voltage U e of the motor = 100.0%.
The relationships of the three voltage points and frequency points must meet the following If the slope of the V/F curve is too large, the “overcurrent” protection may be enabled. Particularly, if the low-frequency voltage is too high, the motor may be overheated and even burnt, and the inverter may be subject to overcurrent stall or overcurrent protection. requirements: V1 Fig.
7-19 Schematic Diagram of Multi-point Polyline V/F Curve 207 multi-point VF F05.05 Frequency point F3 of multi-point VF F05.03 to rated frequency of motor (reference frequency) Hz 5.00 ● 0x0505 F05.06 Voltage point V3 of multi-point VF 0.0~100.0 % 10.0 ● 0x0506 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F05.07 Voltage source of VF separation mode 0: digital setting of VF separation voltage 0 〇 0x0507