How can a proximity switch be used to control the speed of a motor?
A. By adjusting the voltage supplied to the motor
B. By adjusting the frequency of the motor’s power supply
C. By adjusting the position of the proximity switch
D. By adjusting the sensitivity of the proximity switch
Answer:B
How can a proximity switch be used to control the speed of a motor?
A. By adjusting the voltage supplied to the motor B. By adjusting the frequency of the motor’s power supply C. By adjusting the position of the proximity switch D. By adjusting the sensitivity of the proximity switch
Explanation: A proximity switch can be used to control the speed of a motor by adjusting the frequency of the motor’s power supply. This can be done using a variable frequency drive (VFD) that is connected to the proximity switch and the motor.