User Manual of EM730 Series Inverter In the case of SVC control (e.g. F00.01=1) and zero-frequency operation, the inverter will work according to the F06.17 setting. F06.17=0 : braking by the set current of F06.18 for zero servo operation; F06.17=1 : no processing; F06.17=2 : the inverter freely stop running with its output blocked. increase the torque, i.e. the compensation for stator voltage drop. In the vector control mode, voltage feedforward adjustment is added to automatically The synchronous motor is subject to flux weakening control. F06.21 Ones place=0, invalid Flux weakening control is not performed. The maximum speed of the motor is related to the bus voltage of the inverter.
When the maximum speed of the motor does not meet user requirements, the flux weakening function of the synchronous motor should be enabled to increase the speed. EM730 has two flux weakening modes: direct calculation and automatic adjustment. F06.21 Ones place=1, direct calculation In the direct calculation mode, the flux weakening current is calculated according to the target speed and can be adjusted manually via the option 06.22.
The lower the flux weakening 215 braking current no-load current of the motor) Function code Function code name Parameter description Unit Default setting Attribute Mailing address F06.20 Voltage feedforward gain 0 ~ 100 % 0 ● 0x0614 Function code Function code name Parameter description Unit Default setting Attribute Mailing address F06.21 Flux weakening control options 0: invalid 1: direct calculation 2:
automatic adjustment 2 〇 0x0615 F06.22 Flux weakening voltage 70.00~100.00 % 100.00 ● 0x0616 F06.23 Maximum flux weakening current of synchronous motor 0.0~150.0 (100.0 is the rated current of the motor) % 100.0 ● 0x0617 F06.24 Proportional gain of flux weakening regulator 0.00 ~ 10.00 0.50 ● 0x0618 F06.25 Integral time of flux weakening regulator 0.01 ~ 60.00 s 2.00 ● 0x0619