Glad it helped

Glad it was helpful!

I did all the changes and motor still runs rough with vibration , motor works fine on another VFD from different manufacturer

I can think of a couple things that might keep it from sending power to the motor. Maybe one of these will help. First, and I'm sure you've done this, make sure the motor is wired fro 230v and not 460v and that the T1, T2 and T3 connections are right on the VFD. Second, double check the safety switch settings for pins x1, x2 and x3. Make sure none of those are configured as a stop or safety switch. Those will keep it from sending power to the motor. Third, double check the setting for vfd control. Make sure it's set to the panel and not to remote. If that happens, it will look at pins x4 and x5 for control and disregard the panel inputs. I'm sure there are other settings that could impact it, too. Mostly, check what the programmable pins are doing, check to make sure it has panel control (and not remote) and double check the motor configuration.

what ya talking about. I think that covers most models and broke down the mystic into a few simple steps, cheerd

I took a look at the two manuals and the P-codes are different between the two VFD's I have. The ranges are same, so the 000X codes are setup for the VFD on both machines but what the parameters configure is different. I'll take a look a the badly translated one and see if I can make heads-or-tails of it, if you'd like two brains on it.

@@RobertAdairWorkshop All help is appreciated. Thanks!

I don't think the magnetic switch would be a problem with the VFD provided it is used to power the VFD and sits on the line side. I don't think you'd have a problem using a machine plug between the VFD and the motor. It'd have to be for T1/T2/T3 and you wouldn't be able to power it without the VFD. Essentially, you'd have a movable machine but one that wouldn't function unless it were plugged back into the load side of the VFD. All should work, I think.

@@RobertAdairWorkshop Thank you. Appreciate you taking time to reply.

Here's a video where I show more of the installation: kzfaq.info/get/bejne/ocpkmcqK1bTNg4U.html I did not have problems with low speed torque but I'm using the step pulleys in conjunction with the VFD which lets me slow down the spindle while maintaining torque. I wonder if changing the VFD profile (percentages at RPM) would help? I was never able to get the safety stop switch to work. I had it wired I not pin X1 and COM and programmed correctly but it never worked. I tried several of the other programs on those pins to see if any other functions worked, but none did. I cam to the conclusion that the programmable pins don't work. I suspect there is a software issue where the pins aren't polled correctly. I ended up pulling the VFD off and swapping it for a different one, the AT1. I kept the VFD and will use it on my surface grinder which has it's own shutoff switches. So yeah, not great. Check out the video I linked above if you have time. At the end of it, I talk about the problems with the programmable pins.

@@RobertAdairWorkshop Thank you for responding! I do have exactly the same VFD you started with. I also have tried all the same things. Betting the only way to get a safety stop to work is use the full external control button setup. The manual has a lot of undocumented settings; you and I both wish we knew what they were for! If I can solve the problems I'll be sure to let you know!

There's really only a couple of things you can look at. The Chinese manufacturers don't publish much in the way of specs. I've chosen them based on motor size. I usually go 3-times the motor size I'm using. So for a 1HP motor, I use the 3HP vfd. Some of the VFD's accept 120V single phase and some, 240v single phase. Keep that in mind. You'll want to choose one that aligns with your supply voltage. Most 3-phase motors are 240v or higher, though, so it'll likely be based on that. I've used two different models with good luck from both: The AT-series (AT1) and this YL600 series. You'll find many different "brand" names for these but they are typically all the same specs/manufactuers.

You'll need a 3-phase motor for the AT1. It takes in single-phase power and spits out three-phase power. The AT2 looks like it does single-phase power in, single phase power out. It also notes its for 220/240V so your 1-phase motor needs to be made for 208/220/240V. As an aside, 3-phase 240v motors are considerably cheaper and more readily available than 120v single phase. You might be able to get a 3-phase motor cheaper than that AT2 VFD.

I don’t know how. The manual doesn’t say anything about it. Mine is connected to the main switch and shuts off with the machine.