The Solid State speed control chops the AC voltage applied to the motor. They are infinitely variable and have a minimum setting adjustment to guarantee start up after a power outage. But because they chop up the voltage ap- plied to the motor they can cause a motor to speed search and make a humming noise.
Can I use a dimmer switch to control AC motor speed?
The best dimmers for running an electric motor have an adjustable minimum speed setting. Always buy a switch that is rated to handle an equal amount for the watts or more, not less, in order for the dimmer switch to work well. A dimmer motor AC switch is suitable for a ceiling fan.
How does a variable speed switch work?
It works through the regulated activation of a field coil, which generates a magnetic field that is transmitted to the input rotor, which in turn transmits it to the output rotor. The higher the intensity of the magnetic field, the higher the speed and torque that are transmitted.
Can you put a speed control on a single phase motor?
Speed control of single-phase induction motors is desirable in most motor control applications since it not only provides variable speed but also reduces energy consumption and audible noise. Using microcontroller-based control systems, one can add speed variation to the system.
Can you put a dimmer switch on a AC motor?
Dimmer Switch for Fan Speed The best dimmers for running an electric motor have an adjustable minimum speed setting. The power switch should match the specifications for the motor for best results.
How do you control the speed of a solid state AC motor?
Solid State Variable Speed AC Motor Controls. On a single speed blower, a speed control wired in series with the hot line will allow the user to control the speed of the blower. Finally, do not use light dimmer switches as speed controls for the centrifugal blower. Controls should be approved for use with the motors found in these units.
Can I use a variable speed Start switch with a PSC?
Not to be used with Capacitor Start motors or motors with internal centrifugal start switches. These controls provide infinite variable speed for shaded pole and PSC motors.
What does Max amps mean on a motor name plate?
These controls provide infinite variable speed for shaded pole and PSC motors. Max amps means that the rated motor name plate amperage can not exceed this rating or you will damage the control and motor. Motor must be run with sufficient torque to prevent stalling – A motor not turning will burn up.
How does a speed control work on a blower?
On a single speed blower, a speed control wired in series with the hot line will allow the user to control the speed of the blower. Many speed controls will not lower voltage below 60 and will not allow the wheel to slow to 0 RPM. Also, the combination of a blower and a speed control can often result in what is called
