What is the purpose of a VFD brake chopper function?
A. To prevent the motor from coasting to a stop
B. To increase the motor’s torque
C. To convert the motor’s kinetic energy into electrical energy during deceleration
D. To increase the VFD’s efficiency
Answer:C
What is the purpose of a VFD brake chopper function?
A. To prevent the motor from coasting to a stop B. To increase the motor’s torque C. To convert the motor’s kinetic energy into electrical energy during deceleration D. To increase the VFD’s efficiency
Explanation: A VFD’s brake chopper function is used to convert the kinetic energy of the motor during deceleration into electrical energy. This is done by short-circuiting the motor terminals through a chopper circuit, which causes the motor to act as a generator and convert its kinetic energy into electrical energy. This electrical energy is then dissipated as heat, which helps to slow down the motor and bring it to a stop more quickly and efficiently. This feature is especially useful in applications where rapid deceleration is required, such as conveyors, cranes, and elevators.