Introduction to Timers and Timer Contacts

A discussion of timers in ladder diagrams. With ON Delay and OFF delay discussed with an example with a holding circuit.
Auto shut down included in the last circuit in this video.

[@mohamedfaouzilouassaa5049]

There is a confusion about off delay timer. In my anderstanding ,there are 3 types of off delay timer. 1)- pneumatic timer could used for off delay 2)- True off delay 3)- with signal contact the off delay should always be energised

[@ronanoazoro1772]

great explaination with symbol elobrating . thank you sir.

[@jakeoly5109]

Great explanation Lars! Thanks

[@mamumonkan]

Hello there, we have problems with Voltage fluctuations, where the voltage dips briefly and then comes back on right away. This causes my AC compressor many problems, so I installed a ICM Delay on Make Timer. The strange thing is that the timer does not cut out at those dips but only delays once the electricity goes off completely ( same counts for the built in delay in my Air handler thermostat). So here my question : would a Ditek Surge Protector be a solution or do I need to install something else ? Thank you so much !

[@EliangelB]

Thanks for this video, really reaaaally helpful

[@larsexplains3086]

🤣 Thanks for the thanks! Bring on more ideas for other videos. I'm always looking to know what people what to learn.

[@larsexplains3086]

Right back at you BROTHER!

[@mrh4742]

Is there any timer that on/off every month or biweekly for like few hours?

[@BKMakes]

Arriba, arriba! Andale, andale! ...sorry Lars, couldn’t resist😋

[@larsexplains3086]

Thanks brother BK! LOVE you builds Sir. Hope all is well on that end.

[@ramuganesan]

after supply is removed from the coil of the off delay timer, will it start to count the timing?

[@sohailjanjua123]

Hi, I like your lecture. Thanks

[@JaykeSapalaran-iq3qs]

Great video information 👍❤ thank you for sharing your knowledge and experience 🇵🇭🫡

[@larsexplains3086]

Thanks for the propps Jayke!

[@user-wf5ym6pr9b]

Thanks you so much this helped me a lot

[@larsexplains3086]

That's fantastic news Portia! I'm super happy to help!

[@mohamedrashidkamara5966]

Too many components for such a simple operation can't it be minimized. /

[@larsexplains3086]

Control systems often have many components than what I have used in this control circuit. If you go into further study of Ladder Logic, you will find the circuits become more complicated with more inputs and outputs as well as the more complicated the control parameters. Timers only scratch the surface of the numerous control devises in Ladder Logic, including Relays Holding Circuits, Memory Latches, reverse logic, multiple contracts on single devices, termination contacts, both Normally Open and Normally closed contacts and many more control programming and components. I do not think this circuit can be simplified and function the same way, but I am very open to looking at different options. If you would like to explore more Ladder Logic examples, I think this one example will become less “Too many” to you and you will start to see the power of Ladder Logic. My channel has several Ladder Logic examples that I believe will help you understand it from the most basic circuit to more complicated control circuit. If you wish, you can look at the Playlist “Intro To Controls ATMN 110 (Lab)”