Huan Yang VFD with 2.2kW motor RPM calibration (Resolved)

[dtananko]

Hi,
I have calibration issue with my Huan Yang VFD and 2.2 kW water-cooled spindle. I connected only FOR signal as I am using only forward direction and I did not connect did not connect FVD Reset and Spindle OK wires. But it is working OK, meaning I can start and stop spindle and it is adjusting the speed within VFD limits. I have setup MAX frequency at 400 Hz and minimum Frequency at 133.33 Hz that results in 24k to 8333 rpm for spindle. I can obtain these speeds from Acorn board by commanding S24000 and S1. I measured actual speed of the spindle using optical tach (it is very close numbers to VFD display readings) and recorded PWM voltage for every speed between 0 and 24k rpm (see attached file). It looks like that I am commanding 0-24k rpm and voltage follows the straight line. The actual rpm follows the straight line also, but with minimum at 8333, so all numbers starting from 24k are skewed up. Is there anything I can do to accommodate the minimum speed of the spindle? BTW, when I put Minimum Spindle speed in the wizard it does not change anything, but do not allow S command below this value. All readings are the same. Please advise. Thank you.

[cncsnw]

Program the VFD for 0Hz - 400Hz, then put your desired minimum RPM in the Wizard.

Standard Centroid PLC programs assume the VFD scales from zero, even if you choose not to allow the slowest speeds.

[dtananko]

Thank you. I will give it a try. I hope I will not burn the spindle by accidently go lower than 8000 rpm. Does anybody know/tested lowest rpm on Huan Yang 2.2 kW water cooled spindle?

[dtananko]

THank you! It worked. Now all rpm readings are within 1%.

[martyscncgarage]

THank you! It worked. Now all rpm readings are within 1%.

Side reminder, whenever asking for help, please post a report. F7 Utility, F7 Create report. It allows us to see how you have the Centroid control setup for your machine.

Glad the issue is resolved. Good luck with your build
Also check out the Acorn Knowledge base forum for lots of information.

[dtananko]

report_80F5B5F53BBF-1216215462_2022-01-06_09-50-16.zip

(615.95 KiB) Downloaded 48 times

Thank you for letting me know about Reports. I attached one here.

[martyscncgarage]

report_80F5B5F53BBF-1216215462_2022-01-06_09-50-16.zip

Thank you for letting me know about Reports. I attached one here.

We need to see the big picture including details about the build

Here is an excerpt from your report. We can see from it you adjusted the low rpm threshold for your spindle.
Really, the bottom line is, the more information that users can provide, the better suggestions we can make.
Good luck with your build!
Marty

=========================================================================
Reported Generated: Thu Jan 6 09:50:16 2022
MPU12 serial number: 80F5B5F53BBF-1216215462
License: ACORN PRO ROUTER
Version: CNC12 Acorn Router v4.64

Machine Timers info
----------------------------
Power On : 000017.446
Job in Progress : 000000.401
Spindle Running : 000000.770
Since : 12/30/2021

Operating System info:
--------------------------------------
Edition : Windows 10 Enterprise (10.0)
Version : 2009
OS Build : 19042.1415

Memory info:
--------------------------------------
Total physical memory : 17068216320
Available physical memory : 14374211584

Processor info:
--------------------------------------
Intel(R) Core(TM) i5-6500 CPU @ 3.20GHz
Number of cores : 4
Number of logical processors : 4

Display Size: Width 1920 Height 1200
=========================================================================
Installed Software:
Mill software not installed
Mill Demo not installed
Lathe software not installed
Lathe Demo not installed
Router software installed

=========================================================================
Configuration file
CNC12 Jogboard v. 4.640 setup file for MPU12 serial number 80F5B5F53BBF-1216215
DRO display units: Inches
Machine units: Inches
Max spindle (high range): 24000.0
Min spindle (high range): 8300.0
Machine home at pwrup: Home Switch
PLC type: Standard
Jog Panel type Jogboard
Jog panel required: No
Remote Drive & Directory:
Fourth axis level offset 0
Fifth axis level offset 0


Axis Slow Jog Fast Jog Max Rate Deadstart Delta Vmax
(in/min) (in/min) (in/min) (in/min) (in/min)
1 20.0000 200.0000 200.0000 5.0000 5.0000
2 20.0000 200.0000 200.0000 5.0000 5.0000
3 10.0000 100.0000 100.0000 5.0000 5.0000
4 36.0000 360.0000 360.0000 5.0000 5.0000
5 50.0000 100.0000 200.0000 5.0000 5.0000
6 25.0000 100.0000 200.0000 5.0000 5.0000
7 25.0000 100.0000 200.0000 5.0000 5.0000
8 25.0000 100.0000 200.0000 5.0000 5.0000


Axis Label Motor Encoder Lash Comp. Limit Home Dir Screw
revs/in counts/rev. (inches) - + - + Rev Comp
1 X 3.1973 1600 0.0000 0 0 1 0 Y N
2 Y 3.1794 1600 0.0000 0 0 2 0 N N
3 Z 3.1774 1600 0.0000 0 0 0 3 N N
4 N 0.2500 1600 0.0000 0 0 0 0 N N
5 N 5.0000 200 0.0000 0 0 0 0 N N
6 N 5.0000 200 0.0000 0 0 0 0 N N
7 N 5.0000 200 0.0000 0 0 0 0 N N
8 N 5.0000 200 0.0000 0 0 0 0 N N