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Questions and Answers
What is the final angle of the 15° stepper motor after it is commanded to go 100 steps CW and 30 steps CCW from a reference point?
What is the final angle of the 15° stepper motor after it is commanded to go 100 steps CW and 30 steps CCW from a reference point?
- 45°
- 60° (correct)
- 75°
- 90°
Why can a stepper motor be operated open-loop in a control system?
Why can a stepper motor be operated open-loop in a control system?
- Due to high power consumption
- To avoid precision positioning requirements (correct)
- Because it requires less voltage
- To reduce complexity in the control system
If a crane motor with a holding torque of 35 in.· oz lifts a weight, how much weight can it lift?
If a crane motor with a holding torque of 35 in.· oz lifts a weight, how much weight can it lift?
- 20 lbs (correct)
- 35 lbs
- 10 lbs
- 50 lbs
How many toggle switches would be required on the front panel to position the telescope within 0.01° using a 7.5° stepper motor?
How many toggle switches would be required on the front panel to position the telescope within 0.01° using a 7.5° stepper motor?
If a 1.8° stepper motor with 24 threads per inch advances its leadscrew by 1.25 in, how many steps does it take?
If a 1.8° stepper motor with 24 threads per inch advances its leadscrew by 1.25 in, how many steps does it take?
In the context of the given text, what is the significance of a detent torque in a stepper motor?
In the context of the given text, what is the significance of a detent torque in a stepper motor?
What does stall torque refer to in a PM motor?
What does stall torque refer to in a PM motor?
Why is a PM motor considered particularly suitable for control system applications?
Why is a PM motor considered particularly suitable for control system applications?
What voltage must be supplied to a PM motor to achieve a speed of 450 rpm and lift an 11 in.· oz load?
What voltage must be supplied to a PM motor to achieve a speed of 450 rpm and lift an 11 in.· oz load?
What does the duty cycle specify in PWM for motor-speed control?
What does the duty cycle specify in PWM for motor-speed control?
What advantage does PWM have over analog drive in motor control?
What advantage does PWM have over analog drive in motor control?
