hi ,
I need to control an induction motor which runs on high voltage (440 v) in an industry ,,,can i do it using a arduino ? how can i control ?
actually i am sensing the temperature of motor and if the temperature reaches certain level the induction motor should turn off ..can anybody help me ?
altep:
hi ,
I need to control an induction motor which runs on high voltage (440 v) in an industry ,,,can i do it using a arduino ? how can i control ?The speed of such motors is a function of the power line frequency and the number of pole windings of the motor. To control such motors requires expensive high power variable speed inverter drive units, not something a arduino is going to be able to help you with other then possible commanding such a drive unit. This is not DIY area but rather requires professional expertise and tested commercial products. Check with your motor vendor for suggestions.
actually i am sensing the temperature of motor and if the temperature reaches certain level the induction motor should turn off ..can anybody help me ?
Is that a question? If you do have a arduino monitoring the temp of a running motor then to shutdown the motor requires an electrical interface to the motor starter/breaker. Most industrial motor starters will except customer supplied dry contact inputs that will stop the motor when commanded. Access to the motor starters user manual should show how such interfacing can be accomplished.
Industrial 3 phase 440vac service is something that only qualified and experience personnel should be involved with. If you have to ask too many questions about this subject you are probably not qualified and should seek out the advice and help of a professional. This is not an area that arduino projects should venture into in my opinion.
Lefty
And usually those motor drivers are called VFD's and have in-built current sensors, if the motor overheats it will shut the motor down.
Yes, a VFD is the way to go. Most of the newer ones can be controlled by a number of protocols including rs-485, ethernet, PWM, and analog and some will even accept encoder feedback. Quite often they will also have a keypad on the controller as well. In short, you have a lot of options.
thank you everyone