I want to control AC motor with arduino so I bought (Ac voltage regulator 4000 watt) then I controlled it manually, is there any way to connect it with arduino to control it ?
Regards,,
1 Like
Hi,
Can you post specs/data for your Motor and for your Controller.
Thanks.. Tom.. 
The motor is the regular pump motor, the controller is in the picture below
Hi,
Welcome to the forum.
Please read the first post in any forum entitled how to use this forum.
http://forum.arduino.cc/index.php/topic,148850.0.html
Sorry picture did not take and ALL pump motors are not the same.
Motor, part number, voltage, current, poles, power rating.
Please.. Tom...
Sorry man,
I attached the pictures
the first picture is exactly the same to my AC voltage regulator, the second picture is the pump and it is similar to the motor that I will buy.
and now post a specification of the controller
It is very simple, I just want to control the variable resistance from arduino
Hi,
You need to know the type of AC motor the pump has.
The controller is not a variable resistance, it is a phase control type motor control.
Some types of AC motors will not run with a phase control type controller.
Most AC motors are synchronous motors that run at a speed in sync with the mains AC frequency, 50 or 60Hz, depending on what part of the world you live in.
To change their speed you need to change the frequency of the AC to the motor.
Some AC motors do not like running below their designed speed due to heat build up and the lack or diminished cooling due to slower rotor speed.
Can you please tell us your electronics, programming, Arduino, hardware experience?
OPs pics.
What is the specification of the controller?
What is the type and specification of the pump?
Why do you need to control the pump speed?
Thanks.. Tom..
My experience is very good in electronics, programming, Arduino, hardware but I don't have any experience about how to control the speed of AC motor.
Actually I didn't buy the motor pump yet, can you tell me what motor pump specifications I have buy to control it with that controller?
My target is to make 9 speeds and control the speeds from computer, my project contains a lot of sensors data calculations but I don't have any problem with any thing except controlling the motor's speed from computer.
Regards,,
The controller shown is a simple triac device. You cannot control the speed of a normal AC squirrel-cage motor with such a device as it does not change the frequency of the supplied voltage.
Devices which do this DO exist, but they are far more complex and expensive.
Allan
Hi,
What is the application?
Why do you need to control pump speed?
Tom...
It is a project.
If you know how to do that please help me.
Hi,
You will need a better motor and control system, you will not get consistent flow/torque from the pump.
Ideally you use a 3phase motor and Variable Speed Drive, with an external cooling fan for ventilation of the motor.
What is your project?
Tom...
Sounds like a job for automation direct and their GS1
TKall:
Sounds like a job for automation direct and their GS1
Exactly, and it includes all the motor protection/monitoring facilities you need with variable speed pumps.
Tom..
Exactly, and it includes all the motor protection/monitoring facilities you need with variable speed pumps.
And, if you are handy, you can control the GS1 with your Arduino!
Tom