Motor/VFD Help

[Bühlmann]

Eric, have you tried P00.03 set as "1 Coasting Stop"? This removes any motor slowing out of the picture and allows it to coast freely.

Just tried that. No change.


Where does that "User Set Value" (far right column) come from in that .pdf user's manual you sent me? My manual only has default values, so is that someone's successfull settings?

 

[fitzo]

Just tried that. No change.


Where does that "User Set Value" (far right column) come from in that .pdf user's manual you sent me? My manual only has default values, so is that someone's successfull settings?

I do not yet understand what that means, Eric. I continue reading... I did read this, though (pp23), and it sounds ominous:

Er 04	IPM,fault	Please send it for repair

I have a question, too. All of this mentions 50hz input. Does it matter that we're 60hz? I haven't found a spot for selecting input voltage, though it would seem there must be. I'm in over my head. Electronics and I don't belong in any sentence that doesn't contain "dufus".

 

[Bühlmann]

I do not yet understand what that means, Eric. I continue reading... I did read this, though (pp23), and it sounds ominous:

Er 04	IPM,fault	Please send it for repair

I have a question, too. All of this mentions 50hz input. Does it matter that we're 60hz? I haven't found a spot for selecting input voltage, though it would seem there must be. I'm in over my head. Electronics and I don't belong in any sentence that doesn't contain "dufus".

You & me both! The default was 50Hz, and in every parameter that I could I changed it to 60Hz. That was the first thing I did, actually.

 

[Bühlmann]

So, the P00.10 "VF curve-minimum output voltage" setting I had at the default, which is 1.0% on my manual. It's 20% in the .pdf manual shared, but the "user set value" was at 5, so I set it at both 20% (fail) and 5%(good?) and here is what I have, which is the most success so far (this one has sound!):

https://imgur.com/lCG5cHx

I'm still concerned about that mid-range "unbalanced" sound. Is that normal for a VFD?

 

[Hubert S.]

So, the P00.10 "VF curve-minimum output voltage" setting I had at the default, which is 1.0% on my manual. It's 20% in the .pdf manual shared, but the "user set value" was at 5, so I set it at both 20% (fail) and 5%(good?) and here is what I have, which is the most success so far (this one has sound!):

https://imgur.com/lCG5cHx

I'm still concerned about that mid-range "unbalanced" sound. Is that normal for a VFD?

Have you tried resetting to factory defaults (might be P00.13) and starting from there? If it came from amazon, chances are that somebody messed with it and returned it, and they put a new piece of clear tape on the box and sent it to you.

I think these VFDs have a programmable range of frequencies that you can skip (P02.4-9) if you cannot get the motor to run smoothly in a certain range.

 

[Bühlmann]

I can't get it to error out anymore, so I'm thinking it's functional. What I don't know is if the sounds and vibration in the video above are normal and/or acceptable for a VFD setup. I have no frame of reference to know.

 

[REK Knives]

So, the P00.10 "VF curve-minimum output voltage" setting I had at the default, which is 1.0% on my manual. It's 20% in the .pdf manual shared, but the "user set value" was at 5, so I set it at both 20% (fail) and 5%(good?) and here is what I have, which is the most success so far (this one has sound!):

https://imgur.com/lCG5cHx

I'm still concerned about that mid-range "unbalanced" sound. Is that normal for a VFD?

That's not how my kbac sounds running the motor with no wheel on it... It's smooth

 

[Ken H>]

OK, Mike sent me the manual yesterday and I got sidetracked and forgot to look at it. Boy there are a LOTS of parameters to fool with there. It sounds like you've got it working pretty much now. I've never had that issue with a sound just like that either - I've read about it and the "fix" always seemed to be using parameters to set freqs that are skipped to prevent that issue. With the sound, what load is on the motor? Is it mounted to grinder and turning a sanding belt? If so, what happens if you set VFD at that speed to hear the "sound", grind a bit and see if sound changes? If motor is operating at no load with no belt, add belt.

Surely we're allowed to post links to youtube videos? If not, please delete links. Here are a couple of videos on setting parameters for this VFD YL600:

(this guy explains each parameter, but do understand he's got a 50 hz system rather than our 60 hz system).

(more of a factory video and doesn't do a very good job of explain what each parameter does.)

 

[12345678910]

I can't get it to error out anymore, so I'm thinking it's functional. What I don't know is if the sounds and vibration in the video above are normal and/or acceptable for a VFD setup. I have no frame of reference to know.

Several instances in the discussions past.

The vibration and notching / faceting smooth out when you put a drive wheel and load on it.

 

[Bühlmann]

Several instances in the discussions past.

The vibration and notching / faceting smooth out when you put a drive wheel and load on it.

Yup, that's something I'm looking forward to trying when the drive wheel arrives. Until then I want to make sure that all of my parameters are correct and the frequency curves and voltages aren't in conflict. I had a tip from another forum to change the intermediate frequency curve values & that made a difference, so I'm trying to learn more on that at the moment. There's maximum, intermediate, and minimum frequency & voltage curve values that I don't understand yet what they do and how they do it, but now I know they are variables who's defaults don't appear to be best suited to my motor.

 

[Ken H>]

I didn't realize the motor didn't have the drive wheel mounted - that sound isn't all that abnormal. Don't worry about it until you can get the drive wheel mounted, and the belt installed. I expect it's be just fine then.