PLC basics
- Thread starter Ric
- Start date
lag
Member
I also use the LOGO!. I also use a Teco PLR(programmable logic relay) .The software is free ,and has a simulation mode. You can also download a user manual. The LOGO! ,and the Teco are good way to learn the basics of programming,without spending a ton of money.
These units ,as Mep stated are not a true PLC but never the less I have found many uses for them around the car wash.
http://www.factorymation.com/s.nl/sc.2/category.22/.f
These units ,as Mep stated are not a true PLC but never the less I have found many uses for them around the car wash.
http://www.factorymation.com/s.nl/sc.2/category.22/.f
pitzerwm
Active member
In the Library area here under presentation, you can get a little idea on them.
Greg Pack
Wash Weenie
pitzerwm
Active member
Bubbles Galore
Active member
Can you give me an example of how you would use the TECO PLR at your wash? I would like to automate as much as possible and this looks like the way to do it.
MEP001
Well-known member
I've given an example before - I use the LOGO!, which is basically the same thing, as an individual bay controller for pump delay, a blow-down and a method to cancel the CC transaction when the STOP position is selected. I've written about two dozen different programs for it, from as simple as a way to use ordinary momentary-contact switches as latching push-button controls to a 6-color wax application from three colors of foam to a very versatile RO production unit controller.
Last edited:
lag
Member
I use these to control bay and building lighting(3 LOGO!s ,and 2 Teco).
I also use Tecos in our automatics to run a Rain-x system, a super dry system (4 blowers on one wash.and 6 blowers on 2 others),to give a wash in use signal to our tellers, a bug prep system (to put a differnet chemical on the front of a car ,then switch to the other soap ,all on the same pass) , to run gattling guns ,on the underwash. I also use to delay our dryer motors (2 power supplys to each panel,then delaying the start of each blower). I also have some extra signage that I run during the wash ,and a door system.
I have them to run a blowdown during the winter in our automatics.
I am currently considering using as a way to micro manage our floor heat ,and radiant heat systems,during the winter, and thinking also about a antifreeze system in our self serve bays.
They for me have replaced a relay panel for each bay that was just getting bigger,and bigger each year.
I also use Tecos in our automatics to run a Rain-x system, a super dry system (4 blowers on one wash.and 6 blowers on 2 others),to give a wash in use signal to our tellers, a bug prep system (to put a differnet chemical on the front of a car ,then switch to the other soap ,all on the same pass) , to run gattling guns ,on the underwash. I also use to delay our dryer motors (2 power supplys to each panel,then delaying the start of each blower). I also have some extra signage that I run during the wash ,and a door system.
I have them to run a blowdown during the winter in our automatics.
I am currently considering using as a way to micro manage our floor heat ,and radiant heat systems,during the winter, and thinking also about a antifreeze system in our self serve bays.
They for me have replaced a relay panel for each bay that was just getting bigger,and bigger each year.
JIMT
Member
MEP001
Well-known member
That's what I like most about them - the LOGO! can't do much that you could do with a bunch of relays tied together, but one good on/off delay relay costs almost as much as one LOGO! unit, and you can program in 50-100 different relays in one unit.lag said:
Speaking of pump & dryer delays, how much time on a SS pump should be delayed as to not have the motor kick on when someone is just dialing in to another service such as foam brush? Also I have docking dryers on our PDQ 4000s. How much delay should be between the 2 motors coming on? There already is a delay built in but it seems like it is not enough. I believe once the first motor is at full speed the other could be started, right?
Rudy
Active member
I added a programmable relay to control the closing of my automatic door. Instead of a time delay, I use the safety beam as an input to the relay. When the beam gets broken for over 2.4 seconds (the time it takes a small car to clear the beam), the PLR gets "armed", and then "closes" the door after the beam has been clear for 1 second.
MEP001
Well-known member
I use 1 second - the contacts have to remain closed for that long before the pump will kick in, and have to remain open for that long to disengage. I used the same PLC and the same delay for the RO pump.Bud said:
lag
Member
