There is no mention of the 2 screws you are talking about in the manual that came with the VFD. The wiring diagram I have from another source has no mention of these screws either. So I have not earthed them. From the videos on youtube those two screws go down to a second circuit board below, it is unclear if they actually screw into that board or through it.If there is continuity between the two screws then they go into the second board. There is a youtube clip of the HY tear down but it is not too clear.
HuanYang VFD Teardown - YouTube
They are using just a Plastic case that many different manufactures use your observation that they are not connected in any way is correct on some as that manufacture is not using them at all, so a Big Caution to anyone that watches videos like this
You would never connect them together even if they where an active Ground point
The Ground on all VFD Drives is the Heat sink of the VFD Drive, which in some cases is covered by the plastic case
Mactec54
@chopper13 Thanks for the video, great resource. Yeah agree it's not clear. But I can see enough to be comfortable those screws are likely just going into heated inserts and are not tied to anything. Guess maybe certain models are different. Don't know if you watched to the end, but he did note that they used an odd screw for it.
@mactec54 Yep makes sense. Just going to ignore them.
10 or 12 sec is a good starting point for acceleration and deceleration this can be adjusted to suit your conditions can go as low as 3s on some of these spindle motors
It will fault if it can not get up to speed before the time is up so something you can play with is the acceleration and deceleration time
As for Ground / Earth connections videos can be good for basic how to only sometimes, as there is a lot of bad information in some of them
Ground / Earth Connection is a must from the Spindle to the VFD Drive and the input power Ground / Earth to the VFD Drive
Again a Chinese Video or any others, of not using a Ground / Earth wire is called population control you will see this a lot in China as a Ground / Earth is not one of there requirement's for safety
They even sell Spindle motors with a 3 pin plug for those that don't understand that it must have a 4 pin plug, you are dealing with 3 Phase Power 3 Hot / Live wires and a Ground / Earth wire so must be a 4 wire connection on the Spindle side
Mactec54
Hello,
How to connect the inverter?
Alan, I do have a VFD just like or similar to the on described above. The power in and out to the motor seem to be somewhat clear, but I have questions on where to take the VR and V1 lines to my controller board. I have a new version of the board. V4.12 I believe.b Your thought5s please. I hope you still look at this forum. I never have much luck from them.
Hello All!
I have two of these VFD's, one is 220v, the other is 110v.
The problem I'm having is the settings for the break work good on the 220v VFD, but not on the 110v
I have specifically ordered both VFD's with all the brake circuitry installed, and have them connected to a huge 200-watt 250-ohm load resistor!
I made a printout of the manual, and carefully wrote down all the settings in the 220v VFD, and made an exact copy onto the 110v !
The only thing different is PD008 Max Voltage: set to 110
Can anyone help me with this?
Thanks,
Widgitmaster
The book that came with the 110v inverter is the same as the one that was with the 220v !
the Resistor is part of the Brake circuit!
www.widgitmaster.com
It's not what you take away, it's what you are left with that counts!
Correct with the manuals they are the same, are your spindles motors the same spec ???
There is no need for your VFD Drive to have the braking resistor connected, for your spindle operate normally, a Braking Resistor only helps if you have a tool changer and want to stop the spindle faster than normal most will do 3 seconds without the Braking Resistor installed, even the users that have auto tool changers most don't use a Braking Resistor
Post what Parameters you are using and your spindle spec's
Mactec54
Hi there, this has been a very helpful thread!
I have a question about the on board relay contacts FA FB FC.
Id like to use the contact to stop my CNC mill by putting it into an E stop when the inverter goes into alarm. This would be any time the spindle stops rotating because of a fault, IE: over current, under voltage, over temp.....
It appears that PD052 is used to select what function controls this relay. What setting should I use, #3 Fault indication or #10 Motor overload alarm? This info is found on page 40 of my VFD manual
Thanks
Glen
Hi
I recently bought a replacement 2.2kw HY02D223B vfd and have set it up on my cnc machine running an air cooled spindle. No matter what I do, I cannot get the front panel potentiometer to work. I don't need remote control at all and am happy to just use the pot on the front of the vfd, but I cannot get it to work. The spindle is working fine and I have been through this post and triple checked all the pd settings which are exactly the same as those on my old vfd. That one worked but this one doesn't.
I must be doing something wrong but I don't know what and just got myself confused. It's very difficult not being able to adjust the speed of the spindle.
I've left it for quite a while and am ready to tackle it again afresh.
Any helpful suggestions please?
Cheers
Had you tired the jumper to the side of all the input terminals?
I had the opposite problem, trying to control remotely, and that was the issue.
Cheers
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