What is the function of a VFD’s “closed loop control”?
A. It monitors the speed of the motor and adjusts the frequency of the power supplied to the motor to maintain a constant speed
B. It monitors the load on the motor and adjusts the frequency of the power supplied to the motor to maintain a constant load
C. It monitors the temperature of the motor and adjusts the frequency of the power supplied to the motor to maintain a constant temperature
D. It monitors the voltage and current in the electrical system and adjusts the frequency of the power supplied to the motor to maintain a constant voltage and current
Answer:A
What is the function of a VFD’s “closed loop control”?
A. It monitors the speed of the motor and adjusts the frequency of the power supplied to the motor to maintain a constant speed B. It monitors the load on the motor and adjusts the frequency of the power supplied to the motor to maintain a constant load C. It monitors the temperature of the motor and adjusts the frequency of the power supplied to the motor to maintain a constant temperature D. It monitors the voltage and current in the electrical system and adjusts the frequency of the power supplied to the motor to maintain a constant voltage and current
Explanation: Closed loop control is a feature of VFDs that allows them to monitor the speed of the electric motor and adjust the frequency of the power supplied to the motor to maintain a constant speed. This helps to ensure that the motor runs at the desired speed, which can improve efficiency and reduce energy consumption.