The control set points of a VFD establish the speed, rotation direction, and stopping parameters for the motor.

• A. Control set points
• B. Input voltage
• C. Feedback signals
• D. Fault codes

Answer: (A)

In a VFD, the commands you set define the actual operating point the drive should aim for. These control set points specify the target speed, the desired rotation direction, and how the motor should stop (including deceleration behavior). The drive uses these targets to generate the appropriate output frequency and voltage, and it continuously compares the motor’s actual speed (from feedback) to the set point to make corrections and stay at the desired point.

Input voltage is simply the power supply to the drive, not the instruction for how the motor should run. Feedback signals provide real-time measurements that the drive uses to adjust output, not to define the target itself. Fault codes indicate problems and are used for diagnostics, not for steering normal operation.