24.6 PRACTICE PROBLEMS
(Note: Problem solutions are available at http://sites.google.com/site/automatedmanufacturingsystems/)
1. A stepping motor is to be used to drive each of the three linear axes of a cartesian coordinate robot. The motor output shaft will be connected to a screw thread with a screw pitch of 0.125". It is desired that the control resolution of each of the axes be 0.025"
2. For the stepper motor in the previous question, a pulse train is to be generated by the robot controller.
b) If it is desired to rotate the motor at a speed of 25 rev/min, what pulse rate must be generated by the robot controller?
3. Explain the differences between stepper motors, variable frequency induction motors and DC motors using tables.
Search for More: |
Custom Search
|   |