Just about done with this ladder diagram except for one part.. the key element.
Green lamp is on when motor is not running.
Have a selector switch to go from jog to auto.
In jog mode motor will jog forward when pushbutton 1 is pressed.
In auto after start pushbutton 2 is pressed motor will start & continue to run.
When the level in a tank activates a float switch the motor will stop for 15 seconds and then go in reverse until the level drops then the system will shut off.
I have the diagram nearly completed but cannot figure out which contacts to use on the timer relay. Also which mode. In off delay contacts change positions as soon as the coil is energized. I thought the timer also started running and after the 15 seconds my NC contacts would return to the normal state and this diagram would work. But then I realized the timer doesn't run until the coil is de-energized.
Help!
Green lamp is on when motor is not running.
Have a selector switch to go from jog to auto.
In jog mode motor will jog forward when pushbutton 1 is pressed.
In auto after start pushbutton 2 is pressed motor will start & continue to run.
When the level in a tank activates a float switch the motor will stop for 15 seconds and then go in reverse until the level drops then the system will shut off.
I have the diagram nearly completed but cannot figure out which contacts to use on the timer relay. Also which mode. In off delay contacts change positions as soon as the coil is energized. I thought the timer also started running and after the 15 seconds my NC contacts would return to the normal state and this diagram would work. But then I realized the timer doesn't run until the coil is de-energized.
Help!
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