gibby106141
New Member
All,
After my last project the cow feeder i am now looking to make in roads into my next challenge with hopefully your help!
In the cow shed there are a set of scrapers if you can imagine a system of two pulleys with a continuous piece of chain and in the middle on each side of the pulleys a scraper would sit so when one goes forward the other goes back. A magnet is placed on the chain in two positions to tell the system when it is at each end of travel.
The proxy limit sits on one pulley only as there is only one switch which gives an input to the system.
I need a circuit that ultimately controls a forward and reverse set of relays.
The circuit should have a start button
A stop button and a reverse button.
There would be one say proxy type limit switch only which tells me when i am at the end of travel
The circuit should work as follows
If the scraper is in home position and on the limit it should not reverse but can go forward
It would continue going forward until the magnet on the reverse scraper hits the limit.
The sytem would then reverse the other way back to the home position and then stop.
However the circuit needs to be able to be started when its not in its home position just in case the system trips on overload etc.
This is a lot to take in but i am looking forward to hearing your responses i guess the circuit needs to be based on some form of flip flop?
I could probably build the basic flip flop but its the stopping with only one input that appears to be hard
Regards
Mark
After my last project the cow feeder i am now looking to make in roads into my next challenge with hopefully your help!
In the cow shed there are a set of scrapers if you can imagine a system of two pulleys with a continuous piece of chain and in the middle on each side of the pulleys a scraper would sit so when one goes forward the other goes back. A magnet is placed on the chain in two positions to tell the system when it is at each end of travel.
The proxy limit sits on one pulley only as there is only one switch which gives an input to the system.
I need a circuit that ultimately controls a forward and reverse set of relays.
The circuit should have a start button
A stop button and a reverse button.
There would be one say proxy type limit switch only which tells me when i am at the end of travel
The circuit should work as follows
If the scraper is in home position and on the limit it should not reverse but can go forward
It would continue going forward until the magnet on the reverse scraper hits the limit.
The sytem would then reverse the other way back to the home position and then stop.
However the circuit needs to be able to be started when its not in its home position just in case the system trips on overload etc.
This is a lot to take in but i am looking forward to hearing your responses i guess the circuit needs to be based on some form of flip flop?
I could probably build the basic flip flop but its the stopping with only one input that appears to be hard
Regards
Mark