[Maslab]

Hi,

When I plug in my new VFD, I get two zero's blinking and none of the buttons is responding. I can't find anything similar online or in the user manual.
Anybody an idea what is wrong?

I attached a 2.2kw air cooled spindle. Error message is the same with or without the spindle connected.

Here is a video of the error : https://imgur.com/a/PyYpClA

Thanks guys and have a great weekend,
Maarten

[mactec54]

Hi,

When I plug in my new VFD, I get two zero's blinking and none of the buttons is responding. I can't find anything similar online or in the user manual.
Anybody an idea what is wrong?

I attached a 2.2kw air cooled spindle. Error message is the same with or without the spindle connected.

Here is a video of the error : https://imgur.com/a/PyYpClA

Thanks guys and have a great weekend,
Maarten

When you said you plugged it in, are you using a regular single phase power plug, if so you may have damaged the VFD Drive by doing this, No plugging and unplugging with a Plug is allowed.

The VFD must be power up by using a switch to turn the main power to the drive on, damage can occur by using a Plug

How have you wired the input wires to the R S T Terminals ???

[Maslab]

Hi,

Thanks for the reply.

First of all. It's single phase (220V) and it worked fine for a few days. I was able to change the parameters, the potmeter worked fine to control the spindle...
Suddenly I get the error message when I turn the power on. It's just a switch on the power outlet.

Here is a picture of the wiring: https://imgur.com/a/qXhXSaO

The odd thing is that I can't find anything related to that error, not in the manual and not on the internet...

Kind regards,
Maarten

[mactec54]

Hi,

Thanks for the reply.

First of all. It's single phase (220V) and it worked fine for a few days. I was able to change the parameters, the potmeter worked fine to control the spindle...
Suddenly I get the error message when I turn the power on. It's just a switch on the power outlet.

Here is a picture of the wiring: https://imgur.com/a/qXhXSaO

The odd thing is that I can't find anything related to that error, not in the manual and not on the internet...

Kind regards,
Maarten

Ok your input power has to have a Ground / Earth, and for this VFD Drive needs to be connected to R Hot / Live and Neutral T plus Ground to the Ground terminal,

What country do you live in you said 220v

That's good the you have a switch that you are using, to turn it On / Off , this is not a normal fault, it is a fault that can happen when it is plugged in to a live outlet

[Maslab]

Hi,

Do you think the error will go away if I ground the device now, or is it broken forever?
(update 1: it doesn't so far... :-()
(update 2: I left it on for a few minutes and it came back to live!)

I'm from Belgium.

Thanks for your help! You earned yourself a coffee :-)
Maarten

[Al_The_Man]

Hi,

Thanks for the reply.

First of all. It's single phase (220V) and it worked fine for a few days. It's just a switch on the power outlet.

Maarten

Out of interest, is this a 1ph and neutral or similar to N.A. two live conductors WRT earth GND?
Also does the socket use a DP switch or a SP version?

[Halfnutz]

Hi Al,I'm curious, and I trust your experience, but please explain how a mechanical switch differs from a plug, as far as the electric hitting the VFD is concerned? I use plugs as switches temporarily testing servo drives and actually I have a big torrit 3 phase dust collector with a VFD and I plug and unplug it all the time. I know its not right, but little I do is. If it can really cause damage I will stop doing it, Im just trying to figure out why, assuming they are not under any motor load when plugged/unplugged.

[mactec54]

Hi Al,I'm curious, and I trust your experience, but please explain how a mechanical switch differs from a plug, as far as the electric hitting the VFD is concerned? I use plugs as switches temporarily testing servo drives and actually I have a big torrit 3 phase dust collector with a VFD and I plug and unplug it all the time. I know its not right, but little I do is. If it can really cause damage I will stop doing it, Im just trying to figure out why, assuming they are not under any motor load when plugged/unplugged.

Well you should never do that, as sooner or later it will catch up with you and you will have a damaged the drive, I have seen people do this for years, with no problems and then that one day it is all over

Most VFD Drive manuals tell you not to do this, you can get a power surge or arcing, when pushing a plug into a live socket, this spike can be large enough to damage the input electronics of the VFD Drive

[Al_The_Man]

Hi Al,I'm curious, and I trust your experience, but please explain how a mechanical switch differs from a plug, as far as the electric hitting the VFD is concerned? I use plugs as switches temporarily testing servo drives and actually I have a big torrit 3 phase dust collector with a VFD and I plug and unplug it all the time. I know its not right, but little I do is. If it can really cause damage I will stop doing it, Im just trying to figure out why, assuming they are not under any motor load when plugged/unplugged.

Hi, Actually in my experience. I don't see the problem, I have done this often when testing VFD's, essentially you are breaking the circuit the same as a DP switch, where you cannot absolutely guarantee that both circuit conductors break exactly at the same point, any more than a mechanical contactor. or relay.
The only rare occurrence could be when the socket is SP switched and the Live and neutral is crossed, but even then I don't see it from a technical point of view.
If you are unplugging oe switching off, it will certainly pay to set the VFD to zero first.

[mactec54]

Out of interest, is this a 1ph and neutral or similar to N.A. two live conductors WRT earth GND?
Also does the socket use a DP switch or a SP version?

He is in Belgium ( 1 ) Hot Neutral Plus Ground 230v 50Hz supply

[Maslab]

Hi mactec54 and others,

Thanks again for the help. I'm assembling a Queenbee Pro, but the assembly isn't straight forward. There is a little online guide to assemble the mechanics, but none for the electronics... Only a few links to the manufacturer of the different devices...

Have a great Sunday!
Maarten