An inverter can be programmed to stop an AC motor quickly by enabling A. a stationary AC waveform. B. a reverse pulse action. C. DC voltage injection to the motor. D. an internal brake

Q5- Adjust a fire angle for a three-phase full-wave semi-controlled converter to feed the separately exciter DC motor to get a load torque can be reached to 750 rpm. When the supply voltage of converter is 150 volts per-phase and the absorbed current through the armature 40A with resistance 0.2 a and a constant back emf 0.4v/rpm. Then find the maximum speed for motor assume the previous parameters values are a constant.

23. In a DC servo motor system, the tachometer feeds back a voltage that's proportional to motor speed. Where does this voltage go to? A. The driver B. The interpolator card C. The axis logic card D. The CPU in the main controller xis logic card for a stepper motor system and are used to

The figure below shows a stepper motor. Determine the step angle for Full and Half stepping operation: Phase 4 N Phase 3 N pole S pole H Phase 1 S N Rotor Phase 2 This portion of the exercise you need not submit for this assignment. But educating yourself with this might help in the 3rd exam. Assuming, a logic-1 power (signal) to a phase produces South pole on the stator facing the rotor, give the powering sequence of the stator windings for one full rotation of the rotor in Full and Half step modes.