Hello.
I'm new to this forum, and I hope I posted this in the right spot.
I'm a retired Mechanical Engineer that also ran my own Electrical Contracting Business for many years.
My brother asked me to help him with a ...what should be....simple control circuit on a 5HP Single Phase Vacuum Cleaner at his car wash.
Unfortunately, I've been retired for several years, and my memory has faded. What used to be easy has apparently been lost with age.
The Control that he needs will allow his customers to power the Vacuum Cleaner for 2 minutes by depressing a Momentary Contact Switch.
At that point, the Vacuum will shut off and cannot be restarted for 2 minutes. At the end of 2 minutes, depressing the start switch will repeat the cycle.
Using a Single Shot timer and Motor relay, I can easily run the motor for two minutes and have it shut off.
The problem that I'm having is the time delay circuit to prevent the motor from being restarted until 2 minutes has elapsed.
As his control is now, the Vacuum motor is turned on and off by a simple 2 position toggle switch, which some of his customer's forget to turn off.
This leads to the motor running for hours sometimes with no one there.
Any reply is appreciated
Thanks
I'm new to this forum, and I hope I posted this in the right spot.
I'm a retired Mechanical Engineer that also ran my own Electrical Contracting Business for many years.
My brother asked me to help him with a ...what should be....simple control circuit on a 5HP Single Phase Vacuum Cleaner at his car wash.
Unfortunately, I've been retired for several years, and my memory has faded. What used to be easy has apparently been lost with age.
The Control that he needs will allow his customers to power the Vacuum Cleaner for 2 minutes by depressing a Momentary Contact Switch.
At that point, the Vacuum will shut off and cannot be restarted for 2 minutes. At the end of 2 minutes, depressing the start switch will repeat the cycle.
Using a Single Shot timer and Motor relay, I can easily run the motor for two minutes and have it shut off.
The problem that I'm having is the time delay circuit to prevent the motor from being restarted until 2 minutes has elapsed.
As his control is now, the Vacuum motor is turned on and off by a simple 2 position toggle switch, which some of his customer's forget to turn off.
This leads to the motor running for hours sometimes with no one there.
Any reply is appreciated
Thanks