User Manual of EM730 Series Inverter The inverter will start running after the magnetic field is established according to the set pre-excitation current F04.06 and the set pre-excitation time F04.07 is up. If the pre-excitation time is set to 0, the inverter will be started directly without pre-excitation. The pre-excitation current F04.06 is the percentage relative to the rated no-load current of the motor. speed tracking according to the setting of F04.08 during the start.
For quicker tracking to the When the speed tracking start mode (F04.00=1) is selected, the inverter will be subject to current operating frequency of the motor, please select the appropriate mode based on the working conditions. If the units place of F04.08 is 0, tracking will be performed from the maximum frequency. This can be applied when the operating conditions of the motor are completely uncertain (for example, the motor is already rotating when the inverter is powered on). If the units place of F04.08 is 1, tracking will be performed from the stop frequency. This mode is usually applied. mode can be applied during switching from the power frequency.
If the units place of F04.08 is 2, tracking will be performed from the power frequency. This after speed tracking is enabled. In case that the corresponding speed is not found, the inverter If the tens place of F04.08 is 0, search will be performed only in the command direction will start running from the zero speed. 199 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F04.08 Speed tracking mode Ones place: Tracking start frequency 0: maximum frequency 1: stop frequency 2: power frequency Tens place: Selection of search direction 0: search only in command direction 1:
search in the opposite direction if the speed cannot be found in the command direction 0 〇 0x0408