This is the best video I have ever seen with a thorough explanation of the circuit especially if you are a self learner as I am. Eleven minutes of this video equals to weeks of learning in schoool. Good job sir, keep those videos on rolling out!!!
Very good layman’s terms , easy to follow. Only thing better would have been showing how you hook it up to the starter coil on an actual starter. Up close. That would have made it PERFECT!!
Hey Walter. I have been “ one of those electricians “ for a long time. The MC aspect has kind of stopped me in my tracks quite often. I work for a zoo and so my duties as an electrician can vary greatly. Thank you for this and “ sparking” my interest with bettering myself. Good things!
Thanks so much for this video, and the entire series!! Just a hobbiest, but am installing CNC mill and manual lathe in home shop. Came to these videos based on VFD intro videos, stayed to watch these basic tutorials on motor control. Last year I had 2 electricians helping me to troubleshoot a 20 yo but "brand new, unused" 18" bandsaw. Couldn't get it to start even though all the switches seemed fine. I finally discovered that by manually closing the contractor, the motor would start, thus eliminating the motor as "the problem." I used a volt/ohm meter to verify that power was making it to the motor control inputs, and that the basic control switches were working as intended. I went so far as purchasing a replacement control unit from Amazon but then I was stuck. The second electrician was brought in at this point. He was able to diagnose the problem with the original motor control unit (from ~1988)--the primary relay coil had break somewhere so it would not energize. The contractor units have been standardized for decades, so the second electrician (the 'motor-control whisperer') as able to harvest the coil unit from the Amazon replacement and use it in place of the original unit. Everything just snapped together and now the unit operates properly with it's original control switches and front panel intact. While this was a great result I don't like to think about how much all that cost (lets just say a few hundred dollars). Having watched these intro videos on Motor Control and 3-wire start/stop circuit basics, I could now understand better how it was all working (or not working). Don't know that I would have figured out what the problem was, but at least I would have had a chance. Finally, I'm going to keep watching this series because, for example, I may want to add an additional stop switch to the bandsaw. The red momentary NC switch assemblies are readily available on Amazon. From these videos, I think I understand how to add more to make the machine safer to use with a more accessible STOP switch.
I really like this video, I want to see with a selector switch on-off-auto, two pilot light green and red, with the overload. You can explain it in the computer but also I wanna see how you wire all that.
The symbols we use in the Netherlands are so different, would've never recognized that to be a coil. And why over complicate it with the overload switches, that could've just been an add-on after you explained the circuit. The drawing is complicated to understand if you don't know what the coil does and how it is connected to the switch
Sorry but I had to add that...some of my frustration comes from ALL the control wiring being red ( I get it to some degree) from the factory in our 1986 Westinghouse MCC’s The newer ones 1990 SqD and Eaton are about the same. I guess for the guy in the factory it’s all the same over and over again. Guess I better get that mindset too.
thanks, great video. I'm just dipping my toes into this as I have an issue with a machine in the workshop and needs to be rewired so thank you. I think the hardest part is finding currently is what comments would work in my situations, I have a DOLD soft start and DC brake unit that I am trying to understand the wiring diagram of but some bits don't make sense, also do I put other breakers before it. thanks James
this is best understanding video i have ever seen and i also like when you add the shematic simulation with the demostration am a fun of learning with simulation app can you share the link of the simulator app
Thanks, these Videos helped tremendously, I’ve worked on variety of Control Panels for Conveyor systems, And in my case had issues with actual loose contact wires that caused initial replacement of several components because, couldn’t determine actual cause of tripped breakers, also pitting and much carbon buildup that causes resistance buildup or arcing, loud explosive sound and smoking out of the Panels, at first thought was overloads because the high Current demands but turn out to be gap between contactors
I know about controls i learn this in my country venezuela 20 years ago and i motice that here in us the electrician in general dont know nothing about control
Thank you, could you zoom into the symbols so we connected the symbols to the parts referring in the schematic and maybe you can point to the actual part or component the symbol is describing…. great explanation
You’re an excellent teacher. Your thought pattern combined with great visuals really reach the audience especially those who learn differently. Thanks for the efforts.
I really enjoyed your video, it gave me a clear understanding of motor control circuit, but not only that, it gave me a clear understanding of how to correlate plc and line logic
I have been self study PLC ladder programming & wiring a pump, this video explain everything so clearly, TQ hope to see more video with actual electrical circuit and its coresponding ladder programs
Its s nice video mate bt you ha shown us everything already connected wis h you could go slow since its for us starters in the field Kindly request you show it like the real connecting of the components
I will try to show some wiring from scratch in another video. If you watch the updated version I do show the wiring schematic at the same time showing each wire and where it is on that schematic. ruclips.net/video/kHbXbK7S188/видео.html&lc=Ugxn80G6I1dX3hi27Ah4AaABAg
I am a me engineer. I started to watch your videos today and amused by quality and simplicity of the information that u share. Thank u very much for the hard work. U would be an amazing teacher.
I think once you see someone wire up the whole circuit, then do it yourself, you can really get a sense of how simple it is. I think VFD's are a lot easier to hook up and you get a ton more control. Centrifugal switches are another example of a simple latching switch that uses momentary buttons for start/stop like on a table saw.
A three pole switch is placed inline with the power to the motor. A 3 wire start stop can be placed anywhere you need to control the motor from including multiple locations.
i worked on these systems with U P S conveyor systems all buckets are alike in miami main hub there are if i remember there where 900 buckets one per conveyor ,,,,,,good job ,,,,,explaining this , your right most electricians dont like doing this ? ,,,,
I really appreciated and liked this video cause it gave me the basic instruction of how 3 wire start stop. I'd like to see more videos like the one multiple start and stop buttons.
thanks for your videos. i am an electrician but control circuits are hard to understand. i would like you to do a video on star delta control circuits its one that give me a lot of problems to understand especially the timer. i would appreciate it very much. thanks much for the other videos you explain to s very well
I wasn’t aware that the overloads cut the neutral when they trip. That’s odd to me. As an electrician, we’re always taught that you never control or switch anything with a neutral, even though it obviously will work. So why don’t the overloads open the hot control wire instead?
Hi Russell. I understand what you’re saying. Usually we do not switch to neutral. I think this originated early on the automotive industry and was adopted by the NECA standards. Although today there are some European standards that require the overload to be placed in line with the control circuit on the hot side of the coil. But Think of a starter coil that is 240 V or 480 V. There would be no neutral and you would be breaking line 1 line 2 or line 3 on the overload side of the coil. Even with all that said you could definitely run or install the overload on the hot side of the coil, although that’s not the norm.
AccessToPower thanks for the quick reply. You’re right; with those control circuit voltages, there is no neutral. But there is in this one! Ha. Anyway, one more thought...why do the overloads open any wire at all? They are thermal switches that are capable of opening the line voltage to the motor all by themselves, without switching any part of the control circuit.
Russell Brown , I think one reason is the overload is a very small switch that’s not capable of handling a large load like a motor. But I can easily handle control voltage which is just the current needed to close the coil
Russell Brown yes of course they are... by opening the control voltage to the coil. The only contacts in the OL is made for the small current to the coil. It is the contractor of the starter that opens the circuit to the motor. The OL has no contacts to the motor.
This is a typical start stop control for any 3ph motor regardless of hp. You will still need to size the starter, overload and overcurrent protection to match the size and voltage of your motor.
Infact you did well sir, you are the greater master, am enjoying your lecture. I know this already but am still looking forward to know more sir thanks 🙏
Till 2024 I watched a lot this kind of videos, this is the best video I have ever seen with completely step by step animation. I don't have to use too much imagination force to understand all. Great job. I wonder is there any contactor that uses its Lines to activate the control circuit, rather than use external 120V power source ? If yes, how is the circuit look like ?
Great job! First and only video I have seen where the narrator explains the seal in contact correctly, ie it is an auxiliary contact and not just some random normally open contact somewhere.
This is the best video I have ever seen with a thorough explanation of the circuit especially if you are a self learner as I am. Eleven minutes of this video equals to weeks of learning in schoool. Good job sir, keep those videos on rolling out!!!
Hi
Yes an excellent video simple to understand!
I like it
6 weeks of motor controls class summed up in 11 minutes. Great, simple, effective content.
"Latch circuit" That term helped me remember that using a N.O. Aux. contact keeps the circuit energized after pushed. Great explanation video !!
Very good layman’s terms , easy to follow. Only thing better would have been showing how you hook it up to the starter coil on an actual starter. Up close. That would have made it PERFECT!!
Hey Walter. I have been “ one of those electricians “ for a long time. The MC aspect has kind of stopped me in my tracks quite often. I work for a zoo and so my duties as an electrician can vary greatly. Thank you for this and “ sparking” my interest with bettering myself. Good things!
Wow thank god for you cause I can wire 3 way and 4 way switching devices with out thinking about q
Absolutely the best and clearest description of a motor starter that I've seen. Thanks
Damn, where was this video when I took motor control. Excellent job.
Where did you take Motor Control? any links?
@@shahshakib5234 when I was an apprentice at the IBEW.
Thanks so much for this video, and the entire series!! Just a hobbiest, but am installing CNC mill and manual lathe in home shop. Came to these videos based on VFD intro videos, stayed to watch these basic tutorials on motor control. Last year I had 2 electricians helping me to troubleshoot a 20 yo but "brand new, unused" 18" bandsaw. Couldn't get it to start even though all the switches seemed fine. I finally discovered that by manually closing the contractor, the motor would start, thus eliminating the motor as "the problem." I used a volt/ohm meter to verify that power was making it to the motor control inputs, and that the basic control switches were working as intended. I went so far as purchasing a replacement control unit from Amazon but then I was stuck.
The second electrician was brought in at this point. He was able to diagnose the problem with the original motor control unit (from ~1988)--the primary relay coil had break somewhere so it would not energize. The contractor units have been standardized for decades, so the second electrician (the 'motor-control whisperer') as able to harvest the coil unit from the Amazon replacement and use it in place of the original unit. Everything just snapped together and now the unit operates properly with it's original control switches and front panel intact. While this was a great result I don't like to think about how much all that cost (lets just say a few hundred dollars). Having watched these intro videos on Motor Control and 3-wire start/stop circuit basics, I could now understand better how it was all working (or not working). Don't know that I would have figured out what the problem was, but at least I would have had a chance.
Finally, I'm going to keep watching this series because, for example, I may want to add an additional stop switch to the bandsaw. The red momentary NC switch assemblies are readily available on Amazon. From these videos, I think I understand how to add more to make the machine safer to use with a more accessible STOP switch.
I really like this video, I want to see with a selector switch on-off-auto, two pilot light green and red, with the overload. You can explain it in the computer but also I wanna see how you wire all that.
What software do you use for your schematics? You've made this 10x easier to understand.
It’s called Constructor
hello Linh, the software I used for this demo is called Constructor. here is a link to the info page. www.cmhsoftware.com/constructor.html
The symbols we use in the Netherlands are so different, would've never recognized that to be a coil. And why over complicate it with the overload switches, that could've just been an add-on after you explained the circuit. The drawing is complicated to understand if you don't know what the coil does and how it is connected to the switch
Great video, thank you! I just wish there would have been a bit more blue in the introduction.
Sorry but I had to add that...some of my frustration comes from ALL the control wiring being red ( I get it to some degree) from the factory in our 1986 Westinghouse MCC’s The newer ones 1990 SqD and Eaton are about the same. I guess for the guy in the factory it’s all the same over and over again. Guess I better get that mindset too.
Can you please make a video about mini solid state relay with 120 v coil and 24 VDC and 24 vac
thanks, great video.
I'm just dipping my toes into this as I have an issue with a machine in the workshop and needs to be rewired so thank you.
I think the hardest part is finding currently is what comments would work in my situations, I have a DOLD soft start and DC brake unit that I am trying to understand the wiring diagram of but some bits don't make sense, also do I put other breakers before it. thanks James
I watched quite a few contactor videos and this is the only one that clerifies how contactors work.
Please post move videos with multiple stop/start stations with holding contacts.
Hi Walter, like the video awesome.
What simulation software do you have to train ??
Phenomenal video. Just need field wiring example.
Yes pleassssse, field wiring example
I really like this video. What software are you using to draw the diagrams?
this is best understanding video i have ever seen and i also like when you add the shematic simulation with the demostration am a fun of learning with simulation app can you share the link of the simulator app
Thanks, these Videos helped tremendously, I’ve worked on variety of Control Panels for Conveyor systems, And in my case had issues with actual loose contact wires that caused initial replacement of several components because, couldn’t determine actual cause of tripped breakers, also pitting and much carbon buildup that causes resistance buildup or arcing, loud explosive sound and smoking out of the Panels, at first thought was overloads because the high Current demands but turn out to be gap between contactors
Thank you sir, for another excellent learning video
thanks so much for the update, please i want to know more about timer connection
Thanks Walter. Very good video. Are you Portuguese?
I know about controls i learn this in my country venezuela 20 years ago and i motice that here in us the electrician in general dont know nothing about control
That is a shame. Thanks for commenting wladimir! We’re trying to make these concepts a little more accessible for anyone interested in learning.
@@AccessToPower your vídeos are awesome because explain in a simple and easy way to understand
Do more of the video putting more explanations on the control side
Thank you, could you zoom into the symbols so we connected the symbols to the parts referring in the schematic and maybe you can point to the actual part or component the symbol is describing…. great explanation
You’re an excellent teacher. Your thought pattern combined with great visuals really reach the audience especially those who learn differently. Thanks for the efforts.
craig seib thank you for the nice comment. I really appreciate it.
I really enjoyed your video, it gave me a clear understanding of motor control circuit, but not only that, it gave me a clear understanding of how to correlate plc and line logic
I have been self study PLC ladder programming & wiring a pump, this video explain everything so clearly, TQ
hope to see more video with actual electrical circuit and its coresponding ladder programs
I've been doing electrical for 25 years and just now start doing motor controls and this really helped me out a lot thank you
God bless you, l have problem in connection please help me l am a student
Nicely said , Great Instructor , I would like to see more of your videos about motor controls. Thank You for the information , You Rock!
Thank you for sharing this great video.
Can you explain the 3-wire start-stop circuit utilizing a timer? in other words, the need to run the motor only for a short period. Thanks!
Yes I can. I’ll start planning that video
Hi, I like your video.Thanks
This video is very helpful
Thankyou
Brilliant Contet. keep brining more. Thank you
very informative video, it cleared my holding contact question, Thanks
Glad it helped
Best video and we'll Explained. I loved it
Thank you for the knowledge sir
what program did you use for demonstration ?
Hey man, great video on motor control. Very good relation to anyone that has worked with relays or contacts in the field.
Awesome. 👏🏽
Thank You
Its s nice video mate bt you ha shown us everything already connected wis h you could go slow since its for us starters in the field Kindly request you show it like the real connecting of the components
I will try to show some wiring from scratch in another video. If you watch the updated version I do show the wiring schematic at the same time showing each wire and where it is on that schematic. ruclips.net/video/kHbXbK7S188/видео.html&lc=Ugxn80G6I1dX3hi27Ah4AaABAg
Great job, you simplified it without over talking it... brilliant
Great video very simple to understand best explanation I have seen
Could you make it any more convoluted?
Awsome
I am a me engineer. I started to watch your videos today and amused by quality and simplicity of the information that u share. Thank u very much for the hard work. U would be an amazing teacher.
I think once you see someone wire up the whole circuit, then do it yourself, you can really get a sense of how simple it is. I think VFD's are a lot easier to hook up and you get a ton more control. Centrifugal switches are another example of a simple latching switch that uses momentary buttons for start/stop like on a table saw.
Great video. In water/wastewater industry. This type of online training is priceless. Thanks for the service!!
Explanations clear, well demonstrated .
Thanks for such an awesome video
Love it....explained great.....please more more more....thank you
You got it!
Well Explained Sir...Keep it Up...
damn this is helpful! thx man
This was a great video, thank you!!
One of the best videos Ive seen on the explanation of this, especially for a refresher when you haven't been around it in a bit, thank you!
Thank you
this is a great video, thank you. I would like to see how this is applied directly on a machine
Never been around production lines? Miguel Ramos
Good video he’s not boring
...ditto...good class...thanks...
Excellent job buddy!
Thank you do you have any videos on troubleshooting?
Troubleshooting a Motor Starter
ruclips.net/video/IxwTOByZ1yM/видео.html
Here is a troubleshooting video
Great video, thanks
Where I can get your software for schematic very simple, info pls highly appreciated
great info thanks...
Thank you for this
This is the best illustration for a basic motor starter. Thanks!
Very good video to keep my rusty mind going.
Thanks very much
These videos are brilliant thank you. Helped me a lot. Craig U.K
Thanks for sharing your knowledge very informative, it
inspired me to focus more making electrical video
Thanks for the great explanation! I have one question, why would you rather use an 2 or 3 wire start, instead of a 3 pole on of switch?
A three pole switch is placed inline with the power to the motor. A 3 wire start stop can be placed anywhere you need to control the motor from including multiple locations.
Thanks, that makes sense
i worked on these systems with U P S conveyor systems all buckets are alike in miami main hub there are if i remember there where 900 buckets one per conveyor ,,,,,,good job ,,,,,explaining this , your right most electricians dont like doing this ? ,,,,
Awesome, i love it............
Hi. Great video and tutorial. Thank you so much for it. What software are you using there to demonstrate the circuit? Thank you.
It’s called Constructor software
@@AccessToPower Thank you so much. Great, great help.
I really appreciated and liked this video cause it gave me the basic instruction of how 3 wire start stop.
I'd like to see more videos like the one multiple start and stop buttons.
that was brilliant , thank you .
Nice to always teach on motors
thanks for your videos. i am an electrician but control circuits are hard to understand. i would like you to do a video on star delta control circuits its one that give me a lot of problems to understand especially the timer. i would appreciate it very much. thanks much for the other videos you explain to s very well
Devon Salmon thanks for the comment. I will try to do one on that.
AccessToPower thanks a million
Thanks for this but question, what software do you use to create your circuit diagrams?
It’s called Constructor
Thank you @@AccessToPower
What software was used for the simulation?
the software I used for this demo is called Constructor. here is a link to the info page. www.cmhsoftware.com/constructor.html
I BOW TO MY NEW SENSEI
Great demonstration
I wasn’t aware that the overloads cut the neutral when they trip. That’s odd to me. As an electrician, we’re always taught that you never control or switch anything with a neutral, even though it obviously will work. So why don’t the overloads open the hot control wire instead?
Hi Russell. I understand what you’re saying. Usually we do not switch to neutral. I think this originated early on the automotive industry and was adopted by the NECA standards. Although today there are some European standards that require the overload to be placed in line with the control circuit on the hot side of the coil. But Think of a starter coil that is 240 V or 480 V. There would be no neutral and you would be breaking line 1 line 2 or line 3 on the overload side of the coil. Even with all that said you could definitely run or install the overload on the hot side of the coil, although that’s not the norm.
AccessToPower thanks for the quick reply. You’re right; with those control circuit voltages, there is no neutral. But there is in this one! Ha. Anyway, one more thought...why do the overloads open any wire at all? They are thermal switches that are capable of opening the line voltage to the motor all by themselves, without switching any part of the control circuit.
Russell Brown , I think one reason is the overload is a very small switch that’s not capable of handling a large load like a motor. But I can easily handle control voltage which is just the current needed to close the coil
AccessToPower i really can’t believe you just said that. Overloads are designed specifically to protect motors.
Russell Brown yes of course they are... by opening the control voltage to the coil. The only contacts in the OL is made for the small current to the coil. It is the contractor of the starter that opens the circuit to the motor. The OL has no contacts to the motor.
Nice video sir which software you use for simulation
Great video!
Please show a diagram with low voltage forward reverse switch. Thank. Good teaching.
Thanks it helped me alot. Can you show more videos. I just started as an apprentice. And I need all the help I can get. Thanks again.
Thanks. Khalid
Sir this basic connection is good for 3phs 10 hp 240v. Motor.?
This is a typical start stop control for any 3ph motor regardless of hp. You will still need to size the starter, overload and overcurrent protection to match the size and voltage of your motor.
@@AccessToPower thank you very much..
Infact you did well sir, you are the greater master, am enjoying your lecture. I know this already but am still looking forward to know more sir thanks 🙏
could you pl explain some countries have1Ph 230V, some countries have 1Ph 240V ???
Thank you sir
Awesome video! Thank you.
Thank you!
Clear, thorough explanation of basic start-stop MC circuit. Thank you
Great video, loved your visual explanations,really effective, keep it up
Till 2024 I watched a lot this kind of videos, this is the best video I have ever seen with completely step by step animation. I don't have to use too much imagination force to understand all. Great job. I wonder is there any contactor that uses its Lines to activate the control circuit, rather than use external 120V power source ? If yes, how is the circuit look like ?
Great job! First and only video I have seen where the narrator explains the seal in contact correctly, ie it is an auxiliary contact and not just some random normally open contact somewhere.
Excellent Video on three wire motor control systems. Very easy to understand with ladder diagram. Thanks
Thank you, it is awesome video I would like to have more video and explain more about motor control circuit