Reply with QuoteHello. I am sending 2 pdf manuals to see if anyone can help me adjust what I need.
How to show Rpm instead of frequency? FVD yl620-a
Hello, sorry my english (google translator).
I really need your help.
I bought a Fvd and I can't show the Rpm on the display, just shows the frequency. In the manual does not say where to change this option, and already read in several places to change the parameter p144, but in my model this parameter does not have.
https://pt.aliexpress.com/item/32807...2742b90atvjpGQ
110v 2.2kw
Thanks a lot if anyone can help me
Similar Threads:
Hello. I am sending 2 pdf manuals to see if anyone can help me adjust what I need.
Re: How to show Rpm instead of frequency? FVD yl620-a
Looks like set P00.24 = 6
Maybe also need to adjust P00.23, but I think not.
Jim Dawson
Sandy, Oregon, USA
Re: How to show Rpm instead of frequency? FVD yl620-a
Thanks, I did that what you said, I had tried that too.
But it still didn't work.
In P00.23 it only adjusts from 0 to 100.
in P00.24 I put in 6. Now shows on the display SP 1.
There must be somewhere else to change, but I don't know where, this is hard.
Re: How to show Rpm instead of frequency? FVD yl620-a
Hello, I have the same vfd did some one find out how to display rpm instead frequency on yl620-a?
Re: How to show Rpm instead of frequency? FVD yl620-a
The DISP should select the RPM, just Press it until the RPM led is on then it will show the RPMOriginally Posted by agflex
You could try P00.24=9 this will give you all the options
Mactec54
Re: How to show Rpm instead of frequency? FVD yl620-a
Hi mactec54, Really appreciate for the reply,
I press DISP button 50 or more times no response, and I tried P00.24=9 displays u 9, and P00.24=6 displays SP 1, and there is no RPM display
Re: How to show Rpm instead of frequency? FVD yl620-a
Set it back to the default=0 and try the DISP again I'm not a fan of this VFD Drive as many users have had problems with them
Mactec54
Re: How to show Rpm instead of frequency? FVD yl620-a
Following are the settings and examples for what worked for me to display RPM. It is similar to what @mactec54 has suggested.
Two parameters in the YL620 VFD allow to display the RPM of the motor, and also to factor the gear ratio between the motor and the end spindle.
These parameters are:
- P00.24 Display Mode
- P00.23 Display Proportion Constant
The following examples were done with a YL620 VFD (200VAC, 50Hz) connected to a single-phase induction motor (220VAC, 50Hz). The inner capacitor of the motor was removed and the two windings of the motor (`start` and `main` windings) were connected to the U, V, and W outputs.
The basic parameters for the following examples are:
- P00.04 Max Frequency = 50 Hz
- P03.08 Panel Potentiometer Lower Frequency Limit = 20 Hz
- P03.08 Panel Potentiometer Upper Frequency Limit = 50 Hz
### Example 1
The above mentioned two parameters for displaying the RPM (also factoring the gear ratio) are:
- P00.24 Display Mode = 9 (display user variable)
- P00.23 Display Proportion Constant = 200% (Hz to RPM conversion ratio of 2)
In this case, when the motor runs the display will show the following messages depending on the speed set by the potentiometer:
For minimal speed: "u 400"
For maximal speed: "u1000"
Please note that there is no decimal point in this example. I think this is a bug in the firmware installed on my VFD.
As a workaround I set the P00.23 to 20% instead of 200% and got:
For minimal speed: "u 40"
For maximal speed: "u 100"
This refers to 40 RPM and 100 RPM, respectively. In this case they represent RPM which is 2 times the motor frequency.
### Example 2
- P00.24 = 9 (display user variable)
- P00.23 = 40% (Hz to RPM conversion ratio of 4)
Note that due to the decimal point presumably bug, P00.23 is set to 40% instead of 400%.
The displayed range now for the new scaling value is:
For minimal speed: "u 80"
For maximal speed: "u 200"
This is exactly what I was looking for.
Note also that with P00.24 = 9 (display user variable), you can scroll through various displayed content by pressing the `SET` key. There are about 13 types of displays that can can be scrolled through on the fly (without pre-programming), including most of the types listed for P00.24 possible values. This can be done even when the motor is running.
Foto giri del motore
Enter on 00.23 = 50/60HZ it depends on where you are in Italy and 60hz
Enter on 00.24=0
Press the program button to return to the frequency, then press nine times on set until you reach RPM spindle on the display there is a lowercase u on the bottom left with the engine running you will see the engine rpm
Last edited by Cosimino71; 09-25-2020 at 06:34 PM.
Re: Foto giri del motore
This is an old thread
He can not use 50Hz or 60Hz Parameter settings with his motor they must be set to 400Hz or he will damage his spindle motor
Mactec54
If on 00.23 you put 400hz the spindle marks 6000 rpm as the maximum speed, if you put 60hz the spindle reaches 24000 rpm
Re: How to show Rpm instead of frequency? FVD yl620-a
The P0023 you have a choice as to what you want and how to use it ( it is a % setting ) it has nothing to do with the main frequency
Mactec54
Hello as I am new in this forum and I would like to understand my cnc machine well I followed the discussion regarding the vision of the spindle speed and I set those parameters to be able to see it the main parameters are on 400hz but I notice that the spindle heats up after 15 minutes even if I take it over six thousand turns my spindle and the one in the attached photo and I have a YL620-A vfd
Re: How to show Rpm instead of frequency? FVD yl620-a
Air cooled spindles most can not run at 6000 RPM the minimum speed is normally in the 12,000 RPM to 18,000 RPM or they will over heat from low air flow
Some Parameters may help, what Parameters have you set
Mactec54
Which parameters determine the heating of the spindle and its good functioning so I check and let you know the ones that I have set
These are the parameters stored on my Vfd
P00.00=400
P00.01 = 0
P00.02=0
P00.03=0
P00.04 = 400
P00.05 = 400
P00.06 = 100.0
P00.07 = 400
P00.08 = 146
P00.09 = 0.2
P00.10 = 2.0
P01.00 = 0
P01.01=0.0
P01.02=140
P01.03 = 140
P01.04 = 200
P01.05=130
P01.06=120
P01.07=80
P01.08 = 150
P03.08 = 40.0
P03.09 = 400
P06.01 = 10
P06.02 = 10
P0700 = 0.1
P07.08 = 0
P11.01 = 220
P11.02 = 7.0
P11.03 = 400
P12.00 = 5.0
P12.01 = 220
P12.02 = 2
P12.03 = 30
P12.04=5
P12.05=6,5
P12.06=220
P12.07=140
These are the parameters stored on my Vfd
P00.00=400
P00.01 = 0
P00.02=0
P00.03=0
P00.04 = 400
P00.05 = 400
P00.06 = 100.0
P00.07 = 400
P00.08 = 146
P00.09 = 0.2
P00.10 = 2.0
P01.00 = 0
P01.01=0.0
P01.02=140
P01.03 = 140
P01.04 = 200
P01.05=130
P01.06=120
P01.07=80
P01.08 = 150
P03.08 = 40.0
P03.09 = 400
P06.01 = 10
P06.02 = 10
P0700 = 0.1
P07.08 = 0
P11.01 = 220
P11.02 = 7.0
P11.03 = 400
P12.00 = 5.0
P12.01 = 220
P12.02 = 2
P12.03 = 30
P12.04=5
P12.05=6,5
P12.06=220
P12.07=140
Re: How to show Rpm instead of frequency? FVD yl620-a
By your list you have all the important Parameters set correct, some of these air cooled spindles do get hot, that is why the water cooled spindles are better have you been able to check what the temperature gets too
Mactec54
So my parameters are fine my spindle motor and 0,8KW 220v 6,5A 400HZ is my VFD 1,5kw 220v 7,0A 2,8KVA
