The process is as follows, start - motor forward - A trip switch contact motor stop 2 seconds --- motor reverse - B trip switch contact motor stop 2 seconds --- motor forward ------ cycle above steps , Then took the trip control motor positive and negative is possible, that is, the time relay do not know how to pick up, if not take time relay to start the motor, positive and negative instantaneous current is too large, resulting in jumping, the best wiring diagram detailed Oh,
Yes
To the limit of the thickness of the time relay coil power, normally open a pair of auxiliary contacts as the next action of the start signal
Circuit picture is not good pass, or else you give me time relay model, I tell you how to do it
Understand the working state of the relay contact, the power delay and the power delay, and then set the time relay to 2 seconds, adding to the inside and outside on the line. Very simple!
Two microcomputer when the control of three-phase motor is positive and negative
