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  @ChandrashekarCN2 ай бұрын

  💖💖💖💖

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  @svsoleil32552 ай бұрын

  "They explode a bit and let the smoke out.." LMAO...

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  @RobertPiller383 ай бұрын

  I think you described a wet contact, which is the opposite of a volt-free contact. A potential-free contact, volt-free contact, or dry contact, is an electrical switch or relay contact that is not connected to any voltage or current source. In this context “free” means “without”, not “available”.

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  @ChooseLife.YourLife21 күн бұрын

  How on earth is it going to work without electricity?

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  @RobertPiller3821 күн бұрын

  @@ChooseLife.YourLife For clarity I should have said "not connected to an *active* current source". Imagine connecting a garden hose to a spigot. If water (electricity) is flowing from the spigot, that's a wet contact. If the spigot is turned off, that's a dry contact. Sometimes you want to connect the hose even if water isn't currently flowing. For example, a relay can open and close a circuit even if electricity isn't flowing through said circuit at that particular moment. This is how relays allow you to use a 12V signal to activate a 120V device. The 12V signal energizes a relay coil that switches a separate 120V circuit, thus wetting the contacts. However, this terminology is confusing for two reasons: 1) Some people only use "dry contact" to refer to a contact that is isolated from the power source (because it's on a separate circuit), so they wouldn't consider that contact to be "wet" even when the relay has activated that circuit. 2) "Dry contacts" can also refer to a relay that does not use mercury-wetted contacts.

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  @michaeloconnor42473 ай бұрын

  5:30 Did you ever get round to filming the relay video?

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  @engineeringsupport247Ай бұрын

  No, Thanks for the reminder! I’ll get it sorted.

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  @redwinecustomfabrications89703 ай бұрын

  I have an VFD that is tripping out under load, how can i check and find out the exact fault?

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  @engineeringsupport2473 ай бұрын

  Do you have any fault codes? In general if it’s under load I would go to the motor first.

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  @redwinecustomfabrications89703 ай бұрын

  @@engineeringsupport247 error was LU, turned out to be the power in, changed the plug and it is fine now. Thanks

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  @bryanvigil65544 ай бұрын

  Very useful I actually came across one today and I needed this video

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  @engineeringsupport2473 ай бұрын

  This is why I make them, glad you found it useful

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  @blackbearbowie81625 ай бұрын

  can you show how find out the kw of a vfd that has no data plate ?

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  @engineeringsupport2473 ай бұрын

  I don’t know how to do that sorry

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  @kevinmithnick9993Ай бұрын

  One possible solution is when configuring parameters, particularly current limits, you go for the upper limit. That value can give you an idea of that vsd capabilities Greetings from Colombia

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  @youngestincharge1998Ай бұрын

  @@engineeringsupport247 can you post more videos very helpful

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  @carlhutchison41186 ай бұрын

  Very good have 27kv pump motors and 12 wire soft start motors at work good testing thanks

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  @mikeadler4347 ай бұрын

  👍👍

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  @tommyq3747 ай бұрын

  Editor needs a coffee lol "vault free" but good video otherwise, well explained and didnt make a 20min video out of it, to the point

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  @tupachillin9 ай бұрын

  So when your checking reverse bias, you want an infinite or OL reading?

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  @engineeringsupport2479 ай бұрын

  I believe this depends on the meter, my Fluke multi meter will show OL and my Megger Low ohm meter will show infinity.

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  @deepakc88889 ай бұрын

  Please post more videos .there are many guys like me who learn a lot from your practical vidoes

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  @engineeringsupport2479 ай бұрын

  Thank you 🙏 I have lots planned but need to make the time to do them.

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  @HCheatNcool Жыл бұрын

  When you call those a bridge rectifier, is that the same thing as SCR silicone current rectifier

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  @engineeringsupport2479 ай бұрын

  I don't believe so, a bridge rectifier turns AC to DC, an SCR in my understanding is a Thyristor with a Gate that will only conduct when the right current is applied to the Gate.

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  @Saiko_Mantis Жыл бұрын

  This is very helpful, thanks for the video.

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  @engineeringsupport247 Жыл бұрын

  Thank you

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  @pjofurey6239 Жыл бұрын

  Nice.simple.clear .suspect a grumpy VFD on my lovely old skool mill, this film gives me the enthusiasm to investigate .subbed.

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  @austrianpainterhidingfromt5920 Жыл бұрын

  Good video with a straight forward and simple explanation of theory. I work in hvac and run into these quite a lot. Just subbed.

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  @engineeringsupport247 Жыл бұрын

  Thanks

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  @jaykesapalaran5434 Жыл бұрын

  Wow great tutorial.. please make more educational video.. you deserve to be subscribe.

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  @engineeringsupport247 Жыл бұрын

  Thanks, what other topics would you like to hear about?

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  @igieborjolly1106 Жыл бұрын

  Nice one, I have an issue with a seimen 120 ac drive. When you put power on the 3phase incoming I don't get a DC voltage on the capacitor side.

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  @NONEYAZ Жыл бұрын

  Good Teaching! Just A Tip For The Young Bucks & Doe's Out There! When Your In Industrial Manufacturing As A Technician Responsible For Troubleshooting, Fixing And Preventive Maintenance Of Equipment. Your Ultimately Responsible For Optimum Up Time, Output And Quality Of Equipment And The Products Being Produced & Processed! Therefore, There's Not Much Time In Production For Testing & Troubleshooting! Remove Smoking, Burnt Defective Modules, Assemblies, Devices, Etc! Swapping Them With New Ones Whenever Possible! Once Verified The Equipment Was Up And Running In Optimum Condition By Troubleshooting With New Modules Along With All Other Equipment Of Responsibility Being Up And Running! Take The Suspect Modules, Etc, In Engineering/Technicians Lab To Repair By Opening And Removing, Replacing Said Burnt Defective Components! Then, Test As Needed Or You Could Send Them Out For Repair Or Replacement To Vendor(s) Depending On Free Time Of Up/Down Time Of High Volume Production Equipment! Most Of The Time As A Technician You Have To Learn To Put Out The Fire(s) And Read Every Vendor(s) Machine And Equipment User/Troubleshooting And Repair Manual You Can! The Internet Wont Always Be Here Or Up & Available Due To Censorship Or Who Knows What!?! Thus, There's Always Time To Learn To Wash, Polish And Wax The Fire Truck After It's Repaired, Maintained & In Working Order If You Spend Time Wisely Reading The User & Repair Manuals! 😎

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  @frobertopereira Жыл бұрын

  Very nice. Helped a lot. Thank you. In my VFD 9600D-1T-00220M case, the brake resistor is internal. It has two output connectors to attach an external resistor but was internally not wired, so I had to open it to access P+ and P-.

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  @engineeringsupport247 Жыл бұрын

  Sounds like a nightmare, but good work for figuring it out 👍

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  @bikefarmtaiwan1800 Жыл бұрын

  Nice video - maybe you will be interested to know that the wiring in the bridge rectifier is what "magically" turns AC into the full wave rectified DC . The capacitor takes this wavy DC and then smooths that into the power that is used on the DC bus . The bridge rectifier wiring does some crafty re-routing to achieve this which had me confused for a while .... how does negative become positive ?? Regardless of the side that the AC wave is on compared to the zero volts line it is all voltage potential so half of the bridge flips the lower ( negative part of the AC wave ) up to the top to give you full rectification - no gaps ! Hope that helps

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  @engineeringsupport247 Жыл бұрын

  Thanks, that takes me back to college. It also stumped me for ages how the rectifier works.

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  @jonerasmus9399 Жыл бұрын

  Thank you for the video . The only thing I wish was you showing on the schematic which points your were testing between a little more clearer. Otherwise I quite enjoyed your vid . Thank you for your effort to teach us things the technicons failed to do

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  @engineeringsupport247 Жыл бұрын

  Thanks for the feedback, I will try to do an update on the schematic

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  @jonerasmus9399 Жыл бұрын

  @@engineeringsupport247 I'd very much like that . Thank you so much ...legend

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  @electrical8308 Жыл бұрын

  Panel got 'cleaned' 😂. I know exactly what you mean! 'hygiened' by any chance 😂

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  @engineeringsupport247 Жыл бұрын

  Yeah lol “what would happen if I put a high pressure hose on that”

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  @donnacorbett51652 жыл бұрын

  excellent video learned a lot, nicely explained

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  @engineeringsupport247 Жыл бұрын

  Thanks

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  @anirutkhaopluem64852 жыл бұрын

  Good explanation, THANK YOU!

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  @engineeringsupport2472 жыл бұрын

  Thanks 👍

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  @larrybassik27682 жыл бұрын

  Great Content Learned Alot

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  @engineeringsupport2472 жыл бұрын

  Thanks - I really should do more content!

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  @jeffcuyosTV2 жыл бұрын

  More practice favk you

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  @engineeringsupport2472 жыл бұрын

  Thanks