Elektriajamite 1. Labor
3 3 Turn the keypad potentiometer half- Reverse time was 7
way counter-clockwise. Run the drive seconds.
and reverse it, count the shaft It was less because the
reversing time. Compare with the motor was running at a
previous result and explain the lower speed compared to
difference. Stop the drive. the previous experiment.
4 Set the Stop Mod to coasting (so called The motor restart is very
freewheel braking). Enable the Flying fast and it accelerates at
Start running function. Run the motor exponential rate.
to the maximal speed. Then stop and
restart it immediately before the motor
stops. Observe the motor response.
Stop the drive. Disable Flying Start.
5 Set the PWM Frequency to the maximal Less noise than before.
level and run the motor again. Observe PWM noise is caused by
and explain the noise
annaabi.ee 
