How Solid State Relays Work | Testing Solid State Relay with Multimeter | Solid State Relay Wiring
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Read the full blog post at ▶ upmation.com/solid-state-relay/
In a previous video, we discussed the ins and outs of the Electromechanical relays. We have learned why we still better use the relays in general, regardless of the great advancements in technology.
👉 Watch this video here ▶ upmation.com/relay/
In this video, you'll learn about the other type of relays; Solid State Relays or SSRs. You’ll also learn how to choose among all different types of SSRs depending on your application.
You'll also learn how solid-state relays work and how to check solid-state relay with a multimeter.
We'll show you the Solid State Wiring with a practical example.
In the end, we'll explain the different types of SSRs. They generally fall into three main categories;
1. Random turn on solid state modules,
2. Zero crossing solid state relays,
3. Proportional solid state relays.
The Proportional Solid State Relays have two different types: The Phase Angle SSR and the Burst Fire Solid State Relays.
In the manufacturing of solid-state relays, no mechanical moving part has been used and all are made of semiconductors such as diodes, Transistors, Thyristors, Triacs, and so on.
There are different solid-state relay designs for different usages. For example, when you’re designing an electrical control panel's internal layout, you always need more space. So to save some space, we can benefit from the Slim design of Solid State Relay.
You can use solid-state relays as an interface between your PLC output cards and the loads out there in the process. However, as you’ll see in the future videos, the Thyristors, and Triacs are more intended to drive the resistive heating elements and therefore the Solid-State Relays which use these electronic parts in their output circuits, are also more applicable for these purposes.
They also have different names depending on their manufacturer. For instance, Photo Relays, MOSFET Relays, Solid State Modules, Solid State Drives, and so on.
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SECTIONS of this video:
0:00 What is a Solid State Relay?
2:07 How Solid State Relays work
2:30 How to check Solid State Relay with multimeter
3:01 Solid State Relay wiring (An actual industrial example)
4:26 Solid State Relay speed of switching example)
4:52 Solid State Relays generate less electrical noise
5:24 Solid State Relays in Hazardous areas
5:35 Solid State Relay advantages
5:44 Different types of Solid State Relays
9:27 Solid State Relays Application
===========================
▶ If you've missed our most recent videos, watch them here:
Why we use Relay in PLC Applications | Relay Wiring Diagram
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How to Read PLC Wiring Diagram
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How to Read Electrical Diagrams | Electrical Diagrams Explained
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Hey people! We have put some subtitles in languages other than English for our Indian, Arab, Russian and German friends. Please write in the comments if these subtitles are useful to you or not.
Thank you very much for watching the video!
Is useful continue with it . Thank you
Love it but Volume too soft, very difficult to hear
@@ektan7912 Hey! You're right! sorry about the level of the voice.
Thanks from Russia! Very useful👍👍👍👍
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this vid is absolutely amazing, i never comment on videos but this deserves one. wonderful.
After a long wait, here's is an excellent video and thanks again for uploading 😀😊
Hey! Glad to read from you again! :) You're very welcome and thank you for your consistent support.
Thx alot for u content, it really helped me well to understand what's written on specifications on each
Woow! One of the best animated explanation of SSR work! Thx!
Glad you think so, Arturs! You're very welcome!
Beautiful and instructive video on solid state relays ! Thank you for posting.
You're very welcome!
Great video 🙏🏼 cant wait for next videos , very well explained.
Awesome, thank you! Glad it could help! :)
Such a great CZcams Chanel, the animation and pronunciation are easy to understand. Keep going bro.
Hey! Thank you very much for your comment! Stay tuned for more. Cheers.
Very informative and delivered excellently! Thank and more videos please.
You're very welcome! Please stay tuned as there are more to come.
Thank you for your hard work!Your videos are unique!
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Thank you so much for your detailed and comprehensive video,
Please keep posting more videos
You're very welcome and thank you for watching.
you have the best content about automation. thankful, from Brazil
Thank you very much, Diago! Happy you liked it :)
The explanations are dead-on. It reveals the depth of practical knowledge of the content creator. Upmation can give Realpars a good run for their money
Hi there! It's amazing that we recently hear that from some of our fans and it really fires up our engines to overcome the obstacles. Anyways, thank you for your support!
You are the Best! Thanks for sharing the knowledge.
You're welcome, Boris! Glad you liked it!
What a great job ! Thank you.
You're welcome and happy learning!
your videos are legit the best.
Hi! Thanks a lot for your comment! Happy you liked our videos.
Well done. Keep it up!
Thank you! Stay tuned for more.
Great animation. Easy to understand
Glad you think so! Please let us know if you have any questions or suggestions.
Thanks this is a very good presentation 👍
Thanks a lot for your time 👍🏻👍🏻
You're very welcome, David! Thanks for your comment.
Great work! Hope to see videos more often. You guys can beat realpars.
Thank you very much!
Thank you for the clear explanation.
You're welcome, leos!
At last !!!! I waited for you for so long.
Hi Bitebo! Really sorry about the delay. Though, we hope you enjoy it!
@@Upmation Yes I always enjoy your videos and I hope you will be more consistent henceforth.
And please please please, create a patreon account!
Thank you! We actually tried to do that tho we had some problems with Patreon! We're looking for an alternative or solve the problem with Patreon.
Very informative! Thanks.
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Very valuable information. Unique presentation. Thank you so much. 👍
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Thanks for explaining. It is very clear.
Learning from Indonesia
You're very welcome, Rolas! Great to have you here.
Thank you for this wonderful video,
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Thank you for video with great content. keep it up.
Thank you! It's very nice of you, Golnaz! Will do, for sure.
your videos are helpful to me! Thx you for your efforts
Happy to hear we could help and you're very welcome!
Best ever Seend 😍❤️keep it up.. Very helpful...
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Great lesson and thanks
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Vraiment génial !! Thank You
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Great job！
Obrigado pela aula com legendada ,tinha acabado de comprar um rele com noção , partir de agora comprarei com convicção.MUITO OBRIGADO
Hey Jose! Glad it helped you! Please stay tuned for more, watch the other videos and comment us your feedback.
Thank you very much!
Welcome and thanks a lot for watching!
thank you for sharing your knowledge sir😊😊😊
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New subscriber here i really like your video im not electrician but i can easily understand your video such a big help, thank you
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Thank you for sharing sir new supporters here
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Good information thanks
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Greetings from Pakistan......Such an excellent explanation that even the kids will easily understand.....Keep it up...
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Superb!
Thank you! Happy you liked it!
Very good
I would say one of main reasons to use ssr in factory automation is the on off cycle amount without contactor contacts getting burned.
That's correct, Raimonds! Thank you for adding the point.
Thanks!
You're welcome!
Yes -in India we do understand your subtitles.... Let me thank you for valuable information put up!
Glad to hear that! You're very welcome!
Thanks sir
You're welcome! Please let us know if you have any suggestions or questions.
Very nice video ! What is the name for diagram creation software you using in this video ?
perfect.I want to make an arduino-controlled battery centering machine from a microwave oven transformer. Which relay type should I choose?
Thanks for the nice explanation. Does SSR also isolates between supply & contact side? Example if the contact side exposed to high voltage spike, will this damage the supply side?
You're very welcome! Yes, it does. Same as the EMRs, the SSRs also use control circuit and power circuit.
The SSRs benefit from optocouplers on their internal circuit to isolate the control side from the high-voltage (power switching) side.
I see, didn't think about optocoupler. I thought SSR is just a bigger version of transistor 😁
Dear sir thank for video
Tell us about the relay card.
Hey, Manish! Sure!
Well explained....
plz increase the sound
Thank you! I'll transfer your suggestion to the team.
Nice video
Thank you, Varun! Glad you liked it! Please share it with your friend and colleagues to help spread the word.
@@Upmation Yes sure
Inductive loads are better at zero crossing and reactive can be for both types
chia sẻ rất hay
nice video , what is the maximum frequency of open and close can it operate at ? 5Hz ?
It actually depends. For a zero-crossing SSR, it could be as less as 0.5 Hz.
@@Upmation mine it’s 3 to 32 v dc input and output is 0 to 220 v DC I don’t thinks it’s zero crossing
Can u do a video about magnetic float switch for water level control
Thank you for your suggestion. I will pass it on to the team.
Shouldn't be the zero-crossing asynchronous and the random turn on be synchronous?? the other way around? as synchronous means at the same time which is the case for random-turn on but in the zero crossing there is propagation delay hence asynchronous?
The "Synchronous" is used for the zero-crossing types as it passes the power exactly at the next zero-crossing point of the sine wave. So let's think about it like this: they're always "synchronous" to where the voltage sine wave crosses the horizontal axis.
Единственное что нужно знать о твердотельных реле это управление по нулю и по фазе обычно ставят маломощные симисторы Хотя декларировать нагрузку в 2 раза больше по фазе нагрузка идёт в зависимости от того что написано на реле
So the thermocouple is affected by the noise of the of mechanical relay or any noise from the working place can corrupt the signal from thermocouple?
Or The mechanical relay can create a static electricity that can interfere or corrupt the signal coming from thermocouple?
It's actually a kind noise, let's say. And of course, there are lots of things we can do to prevent that, such as using some sort of special thermocouple cables. It is better to bring down the level of noise within the panel anyways.
You missed Peak fire SSRs that turn on at the max/min of the input cycle for switching inductive loads.
So these solid state relays's advantages is endorsing a dead time concept in both asynchronous and synchronize modes? Although the other one only uses this when switching off.
That's right! Although the other important advantages of SSRs have been listed @5:35. Knowing how SSRs transfer the power to their output (as you've explained, it's like dedicating some deadtime to the output voltage), would let us know how much control we can have over an output element. These will help us in various practical usages which we mentioned @9:27. Hope it helps!
👍👍👍ดีมาก
Nice video.
But I would like still to know how the ssr internally works from the non mechanical switching system. 🤔
The video need much more audio volume.
Hey! Great suggestion! We will consider your suggestion for the upcoming videos. About the volume level, you are right and we are sorry about that. It has been corrected in the next videos.
On heater it is better to have high frequency and low wattage driver and save energy because it is a brute Force to use high current and low frequency like analog inductor coil. SSR it is quiet, cooler, and less costly to manufacturing
In most cases this subject is something most engineers and technicians have never considered; specifically those with a background in electromechanical relays. They're accustomed to energizing a coil and waiting for the arcing and clanking thereafter! The subtle nature of a solid-state relay is still something of a mystery to them! :)
Is it true that SSR's generally fail in the closed state, vs the safer open state?
I did not hear about it ever.
Good video, however you should warn people of some of its disadvantages like thermal runaway. Which can be dangerous and destructive to the control panel. Maybe you already have, I have not looked at all your catalog, A good video would be to go over the differences between the SSR and the SCR. A lot of people think these are the same, but they are not.
Sounds a good idea! Thank you for your suggestion.
You didn't touch on one very important difference - heat. SSR's produce a lot of heat and require sinking in situations where a comparable EMR does not yes?
Also is it a characteristic of all SSR's that they fail open?
I'm currently designing a small enclosure that will be double insulated and uses a 12V 20mA DC signal to switch on power for audio power amps that can draw 2400W max sustained (240V 10A connection). Having no ventilation and wanting it to be small, safe and minimal risk to the trigger source, I elected to use 2 relays - a small SSR that the 12V DC triggers to provide a 204V AC switch current to a larger EMR. I figure the SSR provides a buffer so no coil spikes into the 12V source may occur and the Power supply on the audio amp should be capable of coping with the switching voltages given it's designed to be plugged into mains power. Also I have no voltage drop from the SSR.
I had wanted to use a single SSR like you showed but the heat was a concern even though the average power will be much below the maximum 10A draw. It would be about 10W which is a lot I think.
Thank you for the input and your experience! You have it right. As you've mentioned the SSR's heat dissipation is a concern while using them which can be resolved by using heatsinks if there is sufficient space for that. We were more aiming at producing an introduction on "how it works", instead of "how to use it." Even though, we can consider a short video to point out these sorts of details.
If you have any further suggestions, please let us know. Thank you!
What about DC loads? Why can't they be used?
can SSR can be used for DC load ?
Hey! Yes, if the SSR is a kind of relay that a single SCR or a transistor has been used in its output it can be used for DC loads. The ones that we use for AC loads have Triac or paired Thyristor in their outputs.
Combination of scr are ssr
Nice video. Please the audio volume is too low.
Hey! Yes, you're right. We have corrected the sound level in the other videos. Thank you for letting us know.
Any part number of SSR for DC load
You can take a look at Crydom Solid State Relays.
yes, there is DC load SSR, we have this option, welcome to contact me.
I don't understand how the mechanical noise could interrupt or influence the signal @05:02
It actually is not a mechanical noise. This mechanical "movement" might affect the electrical signals undesirably, "indirectly". To put it simply, when the contacts - that one of which is charged with a voltage - hit each other, it will generate a sort of voltage signal that is somehow distorted. This, let's say random signal, which is a kind of voltage signal, might have an undesirable effect on the other voltage signals on the circuit, as it will be added to or distracted from them. Consider a 24-volt signal that its level is dropped to 15 volts. It will not be identified by the PLC card as a "True" signal, anymore, and consequently - as you might have guessed - the logic will not act properly.
However, defining a noise is not that easy if you go deep and I tried to simplify it as much as I could. Hope I could convey! Please let me know if have further questions.
what about DC SSRs?
Hey! We will explain them in another video.
If we used this in 18 century until now then there is no virus like the heart breaking now. I and most of my research teams and other leading firms had concluded this 15 years ago that solid state from power transformer to relays, and to ham radio would save many billion of dollars projects from victimized by Las Vegas gambling industry
It's true!
佩
Électricien installateur....
🙏🌹
sound kom .....wheres soidstate relay!.....amd.
low audio
Sorry about that! We have corrected this issue in the next videos.
What about DC to DC SSR's? They must be a lot more complex. Also, what about all the fake SSR's out there?
Hey! Thank you for your comment. We will explain them in another video. Thanks for your suggestion.
Poor voice quality
Wrong. All of this is unsafe.
What problem with you ?
Yes, exposure to electricity is dangerous anyways! Take care! :)
A 10 minute video called "How Solid State Relays Work" where you DON'T explain HOW they work? Waste of time