[suganesh95]

Where you show the Ground wire looping around the VFD you can not do that and as for the shaft Grounding that should be direct to the Body of the spindle not wires needed

You need to Have a single point ( Star Ground ) where all your Ground wires attach the Main Ground should be attached to this Star Ground Point then you VFD Ground Goes from this point to the VFD Drive, the Spindle Ground can connect to the VFD Ground Terminal or the Star Ground Point, But no loops are aloud

Do you have your VFD Mounted in a Cabinet if so the Metal mounting plate becomes the Ground Plane once you Create a Star Point Ground on this panel

So you have many choices for Ground wire Termination, but all will be at one point ( Star Ground ) bonded to the metal Ground Plane ( Metal Mounting Plate )

I have uploaded a revised sketch. Please check it and let me know if it is all right.

Thank you!

[mactec54]

I have uploaded a revised sketch. Please check it and let me know if it is all right.

Thank you!

Both ways can work but because the Ground wire is part of your shielded cable Between the VFD and the Spindle the first sketch ( 1 ) is the best option

[suganesh95]

Both ways can work but because the Ground wire is part of your shielded cable Between the VFD and the Spindle the first sketch ( 1 ) is the best option

Great! Looks like grounding issue is cleared now.

Back to V.F.D parameters. Below I have typed out the main parameters and the corrected values suggested by you. Let me know if I should finalise these values or any further changes are necessary.

P00.00 - Main frequency - 400Hz
P00.04 - Highest output frequency - 400Hz
P00.05 - Maximum voltage output frequency - 400Hz
P00.06 - Highest output voltage - 100%
P00.07 - Middle frequency - 200Hz
P00.08 - Middle Voltage - 50%
P00.09 - Minimum frequency - 100Hz
P00.10 - Minimum voltage - 10%
P12.19 - PWM frequency (Carrier frequency) - 10KHz

Also, can you tell me what are the P11.yy parameters from the manual?
And I am unable to change the V.F.D display to show the RPM instead of Frequency. I browsed online and found people saying that the Disp./Shift button should be pressed but nothing is happening when i press it on my V.F.D.

Thank you!

[mactec54]

Great! Looks like grounding issue is cleared now.

Back to V.F.D parameters. Below I have typed out the main parameters and the corrected values suggested by you. Let me know if I should finalise these values or any further changes are necessary.

P00.00 - Main frequency - 400Hz
P00.04 - Highest output frequency - 400Hz
P00.05 - Maximum voltage output frequency - 400Hz
P00.06 - Highest output voltage - 100%
P00.07 - Middle frequency - 200Hz
P00.08 - Middle Voltage - 50%
P00.09 - Minimum frequency - 100Hz
P00.10 - Minimum voltage - 10%
P12.19 - PWM frequency (Carrier frequency) - 10KHz

Also, can you tell me what are the P11.yy parameters from the manual?
And I am unable to change the V.F.D display to show the RPM instead of Frequency. I browsed online and found people saying that the Disp./Shift button should be pressed but nothing is happening when i press it on my V.F.D.

Thank you!

What is your main supply Voltage as you will have to adjust some of your Parameters depending on your voltage

[suganesh95]

What is your main supply Voltage as you will have to adjust some of your Parameters depending on your voltage

Here in India, it is supplied between 220V-250V depending on the city or the region within India, at a frequency of 50 Hz. Where I live its 230V, 50Hz.

[mactec54]

Here in India, it is supplied between 220V-250V depending on the city or the region within India, at a frequency of 50 Hz. Where I live its 230V, 50Hz.

So just a few Parameter changes for you

P00.07=140 ( This is the middle Frequency between 120 and 400=140 )
P00.08=35

P00.9=120
Why the change to 120 you have a air cooled spindle, and most likely should be higher than this it depends how good the cooling fan is as to
how slow the spindle can run without over heating

P0010=30

P12.19=10 Watch the Temperature of the spindle when set at 10, 8 is the normal for these spindles

[suganesh95]

So just a few Parameter changes for you

P00.07=140 ( This is the middle Frequency between 120 and 400=140 )
P00.08=35

P00.9=120
Why the change to 120 you have a air cooled spindle, and most likely should be higher than this it depends how good the cooling fan is as to
how slow the spindle can run without over heating

P0010=30

P12.19=10 Watch the Temperature of the spindle when set at 10, 8 is the normal for these spindles

I have a liquid cooled spindle! not air cooled

[mactec54]

I have a liquid cooled spindle! not air cooled

Sorry confused your spindle for another one I have been working with, so should be changed to this

P00.07=150
P00.08=37

P00.09=100
P00.10=25

P12.19=10 same information as above watch for over heating

[suganesh95]

Sorry confused your spindle for another one I have been working with, so should be changed to this

P00.07=150
P00.08=37

P00.09=100
P00.10=25

P12.19=10 same information as above watch for over heating

Great! Thank you for spending your time and help me figure out the issues. Learned quite a lot. If you got any other suggestions please do let me know!

Thank you !