User Manual of EM730 Series Inverter 1 ． After the parameters are initialized, the rotation direction of the motor will return to its original status. 2 ． Be careful to conduct the aforesaid operation where it is forbidden to 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. 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, the inverter will work at 0.00Hz within the duration of the forward and reverse dead zone (F00.22) and then in the opposite direction to the set frequency. See Fig. 7-10. When reverse running is allowed, the running direction of the inverter depends on the Fig. 7- 10 Schematic Diagram of Duration of Forward/Reverse Dead Zone 163 Function code Function code name Parameter description Unit Default setting Attribute mailing address F00.21 Reverse control 0:
allow forward/reverse running 1: prohibit reversing 0 〇 0x0015 F00.22 Duration of forward and reverse dead zone 0.00～650.00 s 0.00 ● 0x0016