When the press S1 relay K2 K1 will work, and relay k4t will start counting time, when the time k4t will work. Make the switch NC of k4t เปิดวงจร, resulting in K2 stopped working. NC of K2 closed circuit, relayk3 work. Relayk1and K3 work, half is to change the cycle model motor star delta.? If you want to stop the work of the motor to press S0 to stop working.
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