User Manual of EM730/EM730E Series Inverter 1. The upper and lower frequency limits should be set carefully according to the nameplate parameters and operating conditions of the actually controlled motor, and the motor should be prevented from long-time operation at the low frequency; otherwise, the motor life may be shortened due to overheat. 2. Relationship of the maximum frequency, upper frequency limit and lower frequency limit: 0.00Hz≤Fdown≤Fup≤Fmax≤600.00Hz; 3. When the set frequency is lower than F00.19 (lower frequency limit), the running mode is dependent on F15.33. The rotation direction of the motor can be changed by modifying this function code instead of motor wiring.
This is equivalent to the change in the rotation direction of the motor by adjusting any two wires of the motor (U, V, W). 1 ． After the parameters are initialized, the rotation direction of the motor will return to its original status. change the rotation direction of the motor after system debugging. 3 ． When the inverter is prohibited from reverse running (e.g. F00.21=1), this function is invalid. 2 ． Be careful to conduct the aforesaid operation where it is forbidden to F00.21=0: reversing running is allowed. The rotation direction of the motor is controlled by the setting of the F/R terminal or F00.20. F00.21=1: reverse running is prohibited.
The motor can only work in one direction, and the F/R terminal and F00.20 are invalid. Select the forward/reverse status of the motor. If F00.22=0.00 is set, forward and reverse running is subject to smooth transition. If F00.22≠0 is set, when the speed drops to 0.00Hz during forward and reverse switching, 143 Function code Default Function code Parameter description Unit Attribute name setting F00.20 Running direction 0: consistent direction 1: opposite direction 0 ● Function code Default Function code Parameter description Unit Attribute name setting F00.21 Reverse control 0: Allow forward/reverse running 1:
Prohibit reversing 0 〇 F00.22 Duration of forward and reverse dead zone 0.00～650.00 s 0.00 ●