I have a 110volt Huanyang Spindle motor and VFD, the "2.2KW" one.
(I wanted the larger because it has ER20, you know, for 1/2 router bits. I don't mind limiting the current on it. Anyway...)
A few things bother me....
1.) For single phase power, the manual does not seem to specify as far as RST, if any of them are connected to ground. I should think none should be. I may check with a DMM, but the manual should state one way or another. In other words, is there one of R,S,T that should be neutral? I just don't want to create a similar situation as when using a grounded oscilloscope to check the mains--on an outlet that's hooked up backwards.
The manual only states: "R.S.T input current If the single phase meets two willfully."
Sometimes, I see the neutral/white connected to R.
2.) I am assuming that the motor ground is okay to also ground the VFD, as in mains/earth (star) ground, but I hate assuming.
3.) My whole machine frame is grounded, and the cart it rode in on. It appears that my spindle motor ground terminal is not connected to ground. I've seen a few reports that state that theirs is not grounded. For testing, I may not open the motor to correct this, though my machine frame is indeed grounded. I will have some thinking to do: warranty VS safety. Perhaps a wire to the motor clamp or external 4-pin plug would serve not to void the warranty for fixing an issue that should have been done at the factory. I am leery of a intermittent ground creating noise in the system, or causing a shock risk.
4.) I do want a all-hell-breaks-loose E-stop I have a 15 AMP industrial relay. I can even bridge them for 30 amps of contacts. Will the switching noise harm the VFD if used for the VFD AC 110v input? It would only be turned on once per session, akin to plugging it in an outlet. There will be an industrial common-mode choke between the relay and the VFD.
5.) Nowhere does my 110v 2.2kw 8.5 amp 400hz motor state how many poles are on it. Sigh.
6.) I know that the VFD must be set for 400hz, but the frequency section of the manual is vague at best, which is amazing given to how important this is, as far as the difference between "main" (not mains) frequency, base frequency, and max frequency. Often, I see all three of these set to the motor frequency of 400hz.
7.) I've not sure what the minimum frequency is for 110v water cooled for a 2.2k motor. I would like to go safe but low--even if the current must be lowered.
Anyway, I am going to still RTFM, but Huanyang needs to hire someone who knows how to write.
Until then, any help would be appreciated. I see numerous threads and videos; many of them conflict one another--even with the same hardware.
Thank you,
brendaem