Ladder Logic Documentation (Full Lecture)

ERROR AT 23:55: NOHC FS in rung 4 should have terminal numbers 3 4, NO PS in rung 6 should have terminal numbers 3 4, NCHO FS in rung 8 should have terminal numbers 1 2

In this lesson we'll learn how to properly document a ladder logic diagram. We’ll learn to comment functional blocks, number rungs, number wires, number terminals, identify devices and associated contacts, and perform numerical cross referencing for logical elements and mechanically interlocked devices. Additionally, we’ll discuss proper grounding and circuit protection practices. (Full Lecture)

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[johnshearing]

Thank you Sir,
I have seen most all of your videos.
Because of them I was able to move from millwright to maintenance electrician in an automated factory setting.
This is a dream come true for me. Without your help this would not have been possible.
The entire world is richer when everyone has access to knowledge.
Thank you for creating this public resource.

[lastchance]

Never in my 30 years as an instrument tech have I seen such a clear and logical explanation of the ladder logic documentation. Bravo sir!

[kobipeeri]

Dear Jim
Long time I tried to understand the logic of ladder diagram, at last I can. You explain great, thanks a lot.

[tivideosAZ]

Jim,
Great Lecture! Very clear, nice and slow with lots and lots of explanation. These standards are found in books, tech literatures and taught in electrical tech courses and some even in electrical engineering and CAD Design Technology. But none does such a great job as you, where you explain so well the whys and hows of them - especially documentation!

I would love to see some GRAFSETs implementations (How to design STEP CONTROL circuits ) as you have the ability to explain so well. The other items you may add in your future list are - PID loops in Industrial controls - Single/dual loops etc..there are some by others, but I believe you will do a superb job!!
Keep up the good work. You got me as a fan!!!

[Bro_Ash]

Wow... simple explanation, easy to understand. Now I knew already how to read electrical logic diagram

[eurotropia]

When I have a problem, I always end up with watching Bigbadtech videos! Best channel!

[chriszachem]

I suggested this playlist to classmates In the AIT class. I hope they take a look at least, if not I at least pointed out this awesome Lecture to them. Maybe they will comment if they watched it. You make this understandable and clear thanks for your upload and time putting this on here. I have learned more from this then the Instructor I had in the previous class in the AIT program. Thank you for your time for Putting this series together.

[michaelolawuyi]

You are a blessing to students like me. Thank you.

[sasajovanovic]

Thx for sharing knowledge.
Awesome work.

[electricaltyler]

thanks so much for the video its so amazing the age we live in you can learn anything on youtube

[jessstuart]

What are the relevant industry standards for the wire numbering/labeling scheme you suggest using?

[Richardo]

36:15 - 36:40 Not clear to me. You have two NC proximity switch however as you stated...if they were a three terminal single pole double throw switch then the terminal note would be 11 - 12. As the diagram shows PX1 is closed but PX2 is open so obviously it is been held open electronically. How?. Please explain.

[LukeNukem]

Jim, your videos are excellent and I am learning a lot for my current job. One question: How do you differentiate the left most wire is common for CR1A and PR1&PR2 @16:53? Is this something you assume by looking at the icecube terminals?


Your videos are much appreciate and I will recommend them to anyone wanting to learn to read and write ladder logic for PLC. Thanks.

[aleksandrpopov]

Hello, Jim
One question about contacts numbering of the float switch FS1 23:57.
As it NO in rang 4 and been held closed it should be 3-4 instead 1-2? Am i wrong?
Thank you for greate tutorials.

[seabelekgowe]

Jim this is great man think you should have this lectures on pdf so we can download.

[phanghinchiew]

thank you sir, I love most of yr videos. one of the best i ever see
do you have eg program for positioning servo motor control and porportional valve

[ericguilkey]

Jim, great video. I'm confused as to how the P coil will energize if the NC PR1 opens when coil PR is energized. I don't see the an electrical flowpath that will allow the motor to run. Can you help me understand? Thank you.

[giovannibianchessi]

It seems to me @37:00 there are two DCV2 SOLA

[kashishsheth]

Hi Jim! Can you please advise us with the right sequence ? Most of the students visiting are pretty new with the subject. It would assist us if we can get the best content in order.
Best Regards!

[kaushalendrasingh]

sir ....i want to know more about sensors these sensors how are they integrated with electronic pid control how it can be achieved in pneumatic, electronic about ultrasonic sensors infrared sensors...and wat are the criteria to put that sensor on that explain...as u explained in vane pump lecture by opening the internal circuitry...
sir presently i am waiting for ur lectures regarding alternator, dc generator, dc motor, ac motor, synchronous motor....power management more thing you explained basic ladder logic circuit very i am from shipping industry so i had seen some electronics controlled modem with ladder is having rectifier and alll...so i need some help if u can add some electronic logic control in pump circuit...sir i have a curiousity regarding alternator protections and high voltage am continuously learning from your lectures but expecting more and more from you whch wl be very helpful for others who want to upgrade knowledge day by day..
sir can you put some lights on hydraulic governor woodward ug8 working and how can be it is achieved from electronic