VFD drive with no power

Z

Zantow

Joined
Jan 21, 2014
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I hope I can get some help here so here goes... I had to shut my shop down last year because we moved to a new house. I just got the new shop set up downstairs and ran 220 with 50 amp breaker over to where the DIY grinder and DIY heat treat oven would be. Once I got everything set up I went to plug in the VFD for the grinder but got nothing on the VFD screen. Thinking the VFD may have gotten damaged in the move I ordered a YL600 from Amazon, wired it up and still got nothing. No fans were coming on or anything. So I made a return and had Amazon send me a replacement. Just hooked it up and still no power on the VFD drive. Nothing is showing on the screen and no fans are coming on. I have checked both the inputs and outputs on the VFD and I am getting power on both. Not sure what I am missing here. My electrical knowledge is minimal but my grinder with the VFD drive worked like a dream till after the move. Not sure what to do. Any suggestions? Thank you.
 
Not sure if this is at all related, but my VFDs have a jumper for 110v or 220v. Maybe you have power on it (can see power) but voltage selection set wrong ? Just a wild guess ….that smells complicated
 
Is there a breaker that you need to switch On from the panel?

*edit
Oops, I see you checked outputs
 
JV Knives said:
Not sure if this is at all related, but my VFDs have a jumper for 110v or 220v. Maybe you have power on it (can see power) but voltage selection set wrong ? Just a wild guess ….that smells complicated
Click to expand...
Hmmm... Well just checked and I found 2 jumpers up at the top right corner of the main board. Not sure what they are for and I hate trying to move them. The writing just to the right of them say 'JPL' so not sure if that is referring to the jumpers or something else. Of course who knows what I am actually looking at. This could all be in hieroglyphics and would seem the same to me. The VFD does say it is for 220 volts and doesn't say anything about being compatible with both.
 
Here is what we need to know:
1) The VFD has no lights or screen.
2) You checked the leads from the breaker and there is 220 power at the outlet on the wall. Does another 220-volt machine work on the outlet?
3) You checked the VFD power board input voltage and you have 220 at the input.
4) You checked the VFD output at the power board and it has voltage on each of the three legs. (read between any two legs should be around 120V A-B, A-C, B-C).

Some VFDs that have been off for a long time need to recharge their capacitors and may =not work until plugged in for a day.
 
Stacy E. Apelt - Bladesmith said:
Here is what we need to know:
1) The VFD has no lights or screen.
2) You checked the leads from the breaker and there is 220 power at the outlet on the wall. Does another 220-volt machine work on the outlet?
3) You checked the VFD power board input voltage and you have 220 at the input.
4) You checked the VFD output at the power board and it has voltage on each of the three legs. (read between any two legs should be around 120V A-B, A-C, B-C).

Some VFDs that have been off for a long time need to recharge their capacitors and may =not work until plugged in for a day.
Click to expand...
Thank you. To be honest I didn't think about that. When I peak under the little cover into where the control board is I can see a little tiny light next to the capacitors. I didn't even think about them being discharged. I will leave this one plugged in for a day and see what happens. If that works then I may try my original VFD to see if that may the case for that one as well. Thanks for the suggestion.
 
It looks like you ordered this item # on Amazon B0CJZY67R7 - that unit looks like it has a removable display. Be sure the little ribbon cable is plugged in good on both the display and main unit. I find it interesting you have voltage on the output terminals - is the motor running?
 
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