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Forum topic by Oscarmeyer28 posted 10-22-2020 10:46 AM 288 views 0 times favorited 5 replies Add to Favorites Watch
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Oscarmeyer28

10 posts in 235 days


10-22-2020 10:46 AM

Topic tags/keywords: vfd

I’m wiring a normally closed stop switch and normally open start switch. I just want to make sure I wire it correctly. Which terminals do I hook up to?


5 replies so far

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HokieKen

15326 posts in 2055 days


#1 posted 10-22-2020 01:31 PM

Sorry, gonna need a better picture than that. If I try to zoom the browser, I can’t read the text.

-- Kenny, SW VA, Go Hokies!!!

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MrUnix

8283 posts in 3116 days


#2 posted 10-22-2020 03:04 PM

What VFD is it? They are not all the same.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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CaptainKlutz

3835 posts in 2411 days


#3 posted 10-22-2020 11:47 PM

VFD rule #1 read the manual

SWAG based your pictures?
Look up programming settings for ‘FOR’ & ‘RST’ inputs.
Most VFD use simple 3 wire input referencing a common [your ‘DCM/COM’ connection].
Guessing the NO Start switch will connect to ‘FOR” and NC Stop switch to ‘RST’, with other end of switch connected to common. Then you need right programming settings to enable those inputs.
But that is just a guess.

Suggest you check mfg website for 3 wire start stop wiring instructions. It is a very common control method.

Note: Some VFD disable the front panel on/off buttons when you enable external input control switches. DAMHIK

Hope your Haunyang lasts longer than what users share over at Practical Machinist site. They banned discussion of that brand VFD. :-(0)

Best Luck.

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

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MrUnix

8283 posts in 3116 days


#4 posted 10-23-2020 12:21 AM

Yup – read the manual. You still haven’t let us know which model you have, but for the generic HY series of Huanyang inverters, this is straight out of the manual:

Ignore the REV switch, and the rest is a pretty standard three wire setup. VFD must be set to external control for them to work. Check with your manual to verify.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

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Oscarmeyer28

10 posts in 235 days


#5 posted 10-23-2020 12:52 AM

HY05D523B. Didn’t even think to check the website I just figured it would be in another language! Lol yeah I hope it last me at least a couple years… I assumed I would use the rst terminal but I just wanted a 2nd option.

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