Ladder Diagram Basics #2 (Safety Control Circuit) 

usefull. i think this control use for a machine that needed to push the button at same time to energized. like a press machine or any othe application base on the function.

The step by step info and diagram including the real relay helps . This is better explained than my tech teachers did at school . Thank you!

You’re way better than my professor ! Keep up the videos !

Pete you present a intermittent level class structure on circuitry (design, construction, component understanding and reasoning). It's very visual in scope, you only need ground level knowledge and a open mind. Please continue to enlighten us.

Sir thank you very much. Can you explain which terminal numbers for the relay and contactors connecting?

It doesn’t specify, but I would wire both red lights in parallel after the second PB so you know if both are being held closed. Just my opinion, like you said, everyone does it their own way and the instructions are not very specific on certain things. 🙂

Do you know of any good references book that one can get to have handy at the shop to references to if one for get these steps. Thank you.

Pete, thank you for the excellent explanation. I'm still learning more about motor control and my question is how about using both of CR2 normally open as aux. contact for PB2 and PB3 , jumper CR1 N/O to red lights?

Great tutorial!

Your a legend mate ... explained so well thank you

Excuse me Mr.Pete but can you please explain why you are using contacts 2 and 7 for both coils? Shouldn’t you have two relays, one for each coil? Also when you energize the coil (2&7) both N/O contacts (1&3) (8&6) will close turning on both red lights. I read some questions and comments regarding this but still did not see my mistake. Can you please elaborate.

Thank you, Mr. Pete, for all the tutorial videos you made.

Thank you very much Sir Pete

I don’t see where is the second coil c2?

Great video.

This and these tutorials are what I have been needing #Thanks

Where you get these text boxes?

it's good to see someone actually work to a specified checklist as opposed to just rambling on about how ladder works. puts it into a bit of perspective. thanks

Hi, I didn’t get why with green lights you used only parallel without any contact from CR1, but with CR2 you made another and said that this only one way to do this. But what’s the difference?

Thanks good video

Great job!

I've been having trouble understanding this in my apprenticeship until now. Thanks man!

wire it up!

👍👍

Nice

peter you are a very good guy teaching electrical control I really love and understand your puzles maybe dont cant explainme because Im not speak very good thankyou

Honestly, i dont't understand of this idea and maybe i'm wrong, but: I think you are mixing ladder programming in PLC (LD) with electrical ladder diagram. (CR1/CR1 should have graphical symbols of electrical contacts instead of coils symbols which were used). Also, even if You stop pushing PB2/PB3, CR2 will be still energized because of CR1 hold contact, which will be still energized because of CR1 self-hold contact.

Graduated with instrumentation deg in 2012 and never got a job in the field, stayed doing residential and minor commercial. These videos are definitely “jogging” my memory!

Keep it coming Pete...very informative indeed!

Great video But I have a question !? When energizing the coil of relay 1 then will both contacts of 1 and 2 close simultaneously ? (Since they have the same coil)

Thank

how do you connect a 400w 1ph capacitor run motor to a start/stop button?

Thanks for your videos!

Thanks for all of the useful information. I find it easy to listen to listen and learn. Although I really like the references to "this bad boy", and showing your Canadian roots with "Beauty and Eh" Subscribing now - Take off Eh !!

These are very useful. Many thanks.

hello brother First of all thank you for this helpful session I have questions .. what if we directly put realy's two NO contact connected from feeld then the NO contact then the two red lights I think it also will work because the two lights wont switch on untill relay two is energized

Pete, really nice explanation. please upload more tutorials

Nice video!

BEAST!!!

Thanks!

Thank you sir

Thanks Pete.

Thank you!!

How can control relay 1 use COMMON 8 and NO 6? I thought you said in your last video both relays are independent? I thought CR1 can only use COMMON 1 and NO 3 and CR2 can only use COMMON 8 and NO 6. Great tutorial, man. Appreciated.