Hello i need to run 3 phase 220v Ac motor using Arduino, how can i do it
What experience and qualifications do you have for dealing with 3 phase mains devices ?
VERY CAREFULLY. You can purchase devices to do that safely.
You don't need an Arduino to run a 3 phase motor.
Exactly what are you trying to do?
It depends on what you want to do. For simple on/off control a relay or SSR is appropriate.
For more direct control, you will at least need a power circuit. If you have the skill and knowledge, you could build one, but guessing from the question, I suppose you don't.
I haven't found any off the shelf power boards readily available. There are COTS modules, but if you have one of those you don't really need an Arduino.
Please describe how is being run right now!!!!!
PS! And tell us if there is the required switch to open the motor power from the 3-phase mains power, so you can safely work on the project!
I don't know how to control the speed of an AC motor.
For on-off control you'll need a 3-pole relay or "contactor". Or 3 relays/contactors. (High-power relays are often called contactors.)
The relay should have voltage & current (Amperage) ratings at-least as high as what the motor uses.
You'll also need a driver circuit for the relay coil because the Arduino can't directly drive a relay coil.
You'll probably need at least 12VDC for the coil.
Reversing required?
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Based on your question, I highly recommend that you DO NOT attempt this yourself. Instead, consult an electrician or someone experienced in this area of electrical work.
The safest solution is to use a Variable Frequency Drive (VFD), which can control both the direction and speed of the motor. The VFD must be properly sized to match your motor's specifications. These devices are typically available through electrical wholesalers or industrial suppliers.
At one hand I hope you doesn't respond cause you gave up the project, on the other hand I hope you respond, so we know you're alive and healthy.
I PMed the OP to see if he was still ok. Would be interested in what he intended to do with an Arduino and a 3-phase motor. How big the motor? I had a 50 hp on an injection molding machine and fractional hp motors from a wave solder machine.
There are also protection issues , fusing and contactors - duty of the motor and its suitability for it .
What sort of motor ( induction ?)
Power rating
Etc etc - project needs specifying , as others have said .
The OP is gone. I am marking this to ignore.
In case anyone is interested, it can be done very easily with the right equipment. You need to have a properly sized VFD (Variable Frequency Drive). This device will take a 0 to 10 vdc, a 4 to 20 ma, or a dry contact input to control the motor. There are many programmable options. You can control speed, direction, starting and stopping speed, and more. Of course you have to be able to respect and understand the danger of the mains voltage. You must also understand motor technology.
In many of my projects I used Arduino based PLC devices to control pumps, fans, and other equipment. www.automationdirect.com (P1AM-100 and P1AM-200 series). They have all of the input and output modules necessary to control many devices.
You can also get devices from Ebay for example, that can give you single phase in and 3 phase out in one small box. I have a few in my shops and they work well. In my area that I live it is very costly to have 3 phase service, so these devices fit the bill.
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