8
MOTOR CONTROL
3. Load the correct factory default in P204: based on the motor rated frequency (set P204 = 5 for 60 Hz motors
and P204 = 6 for 50 Hz motors.
4. Setting of specific parameters and functions for the application: program the digital and analog inputs and
outputs, HMI keys, etc., according to the application requirements.
5. Also set the value of P409. If any of these data is not available, enter the approximate value by calculations or
by similarity to the WEG standard motor, see the Self-Tuning of the VVW control: the self-tuning is activated
by setting P408 = 1. In this process, the inverter applies DC to the motor to measure the stator resistance,
while the HMI bar graph shows the progress of the self-tuning. Tabl 8.6 on page 8-29.
6. The self-tuning process can be interrupted at any time by pressing the key End of the Self-Tuning: at end
of the self-tuning, the HMI returns to the browsing menu, the bar displays the parameter programmed by
P207 again and the stator resistance measured is stored in P409.
7. On the other hand, if the self-tuning failed, the inverter will indicate a fault. The most common fault in this
case is F033, which indicates error in the estimated value of stator resistance. See the For better visualization
of the start-up in the VVW mode, refer to Chapter 10 FAULTS AND ALARMS on page 10-1.
For better visualization of the start-up in the VVW mode, check Figure 8.21 on page 8-31.
8-30 | Micro Mini Drives
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