FWD REV Motor control

317

05:20:13

Forward reverse control for 12 VDC motor, or other to be modified as needed.

I made this system to open and close a chicken coop door at dawn and dusk. 
Used a PLR (programmable logic controller)  for the brains and time keeping.

The push button top left is the start FWD or close and lower push button is the REV  or open, this switches are to be actually outputs  from the PLR.

The second switch from top left is a limit switch, to tell when the door is closed, and the lower  or fourth  from the top on left is the open limit.

the other four switches are actually contacts from the relays and form an H bridge, depending which direction is supposed to move the door they will close or open accordingly, and finally the lamp represents a motor. I hope this will be of help to someone, the applications are many.

published 10 years ago

ferlop

10 years ago

To activate the H bridge make sure that two diagonal switches are on and two other are off

lenzrulz

10 years ago

Very nice

ferlop

10 years ago

Thanks, like I said I am using this set up to control doors using strictly relays, I forgot to mention that you need two relays with 4 sets of contacts, I don't think you can get them with 3 sets, you could possibly use 4 relays with 2 sets of contacts, you could use a pic microcontrolller or a timer for the brains.

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