Paper Tube Machine Working Principle
In the relay control circuit of the paper tube machine, when the power is turned on, all the relays in the circuit are in a restricted state, that is, the relays that should be pulled in are all pulled in at the same time, and the relays that should not be pulled in are restricted by certain conditions. Pulling in, this working method is called the parallel working method. The PLC user program is executed in a certain order, so each soft relay is in the periodical cycle scanning connection, and the action sequence of each relay subject to the same condition is determined by the program scanning sequence. This working method is called the serial Way of working.
