Hi every body i'm new in forum!
I wanted to ask if anyone have had any experience projecting a control system with arduino where i can directly control a single/3phase (230V/400V)ac motor. Setting not only a start and stop system but also imposing a time on, a sort of delay.
Thnx
you are asking multiple questions.
FIRST : NO, the Arduino cannot directly supply ANY sort of power for a motor.
Solution, you buy a motor driver. for a 3-phase AC motor, you buy a variable speed drive rated for that motor and the voltage
SECOND : the Arduino can easily send start and stop signals of almost any sort you can think of.
eg : motor on at 8:00 AM, off at 9:17:37 for a run time of exactly 1 hours, 17 minutes and 37 seconds.
eg : wash cycle, motor to run forward for 1.2 seconds, stop, reverse for 1.2 seconds, and to do this for 21 minutes. then ramp up to full speed to dispel water and run at full speed for 8 minutes, then ramp to zero. then run forward for 1.3 seconds, stop, reverse for 1.3 second, and do that for 18 minutes,......
pretty much anything you can think of for timing can be done.
as a note, daily times will benefit with a RTC or Real Time Clock or getting time from the Internet.
It sounds to me the OP only wants to switch on and off the motor. Easiest solution for this: have the Arduino switch a contactor, rated for that specific motor's power.
Minor complication: contactors with a 5V coil are really rare, most are 12V, 24V or mains voltage...