User Manual of EM730 Series Inverter Specific processing depends on F07.24. F07.27=0: invalid The automatic voltage regulation (AVR) function is invalid. F07.27=1: valid The AVR function is continuously valid. If the input voltage is lower than the rated input voltage, and the output frequency is greater than the corresponding frequency on the VF curve, the inverter will output the output the maximum voltage to maximize the power output of the motor. If the input voltage is higher than the rated input voltage, the output voltage of the inverter will decrease, and the VF ratio will remain unchanged. F07.27=2: automatic The AVR function is valid automatically (invalid during deceleration):
the inverter will automatically adjust the output voltage according to changes in the actual grid voltage, to keep it at the rated output voltage. When the continuous stall time exceeds the set value of F07.28, the driver will report a stall protection. F07.29. The intensity setting depends on the on-site application, instead of maximization. In the stall status, the driver will perform automatic control according to the set value of 226 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F07.27 AVR function 0: invalid 1: valid 2:
automatic 1 〇 0x071B Function code Function code name Parameter description Unit Default setting Attribute Mailing address F07.28 Stall protection detection time 0.0~6000.0(0.0: no stall protection detection) s 0.0 〇 0x071C F07.29 Stall control intensity 0 ~ 100 % 100 〇 0x071D Function code Function code name Parameter description Unit Default setting Attribute Mailing address F07.37 Save the initial voltage during power-off 60.0～100.0 % 76.0 〇 0x0725 F07.38 Power-on read and judge the voltage 60.0～100.0 % 86.0 〇 0x0726 F07.39 Power-on read judgment delay time 0～100.00 S 5.00 〇 0x0727