System Debug Sample
FM3/0+ Family Fan Motor Control User Manual, Doc. No. 002-04392 Rev. *B
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7.1.4.2 Configure PI Parameters
You do not need to modify the default PI parameters, when the motor is running; system can modify the PI
parameters of speed loop and current loop automatically according to motor running state. The PI parameters
of speed loop are based on motor inertia, and the PI parameters of current loop are based on the resistance
and inductance. The detail information is shown in
Figure 18. Motor PI Parameters
7.1.4.3 Configuration Start up Parameters
1. Start up with orient and open loop; set the orient duration and open loop current;
2. According to motor inertia and motor minimum operation frequency, set the acceleration and close loop
frequency with open loop;
3. Start up with anti-wind, define the detect direction times;
a. Do not need Start up with anti-wind, define it to zero;
b. Need start up with anti-wind function, define the detect direction times as a non-zero value. In
principle, if the time can satisfy the direction detection, set the time as short as possible, the typical
case is 0.2s.
4. Start up with close-loop, set Pre close loop time and prepare close loop current. For the detail of open
loop acceleration and maximum speed with open loop and PWM break duty cycle, refer to
Figure 19. Motor Start up Parameters
