Our maker lab purchased a Zhong Hua VFD/Spindle pair off of Amazon. About a year later we assembled our OF Foreman table only to discover the VFD was the wrong version for our spindle, so we then threw more money at the problem and purchased a HuanYang VFD for our Zhong Hua spindle.
After programming the VFD, we found the HuanYang/Zhong Hua combination only operated between 7,500 and 24,000 rpm. The speed settings from the Masso controller and the measured speeds from the spindle did not track well.
After less than 100 hours of use, the HuanYang and Zhong Hua parts failed in dramatic fashion.
We just installed the PWNCNC VFD and spindle as replacements and find the PWNCNC pair operate over the entire speed range and closely track the speed setting from the Masso controller.
it is known that you can’t compare the quality of the cheap and unreliable Huanyang VFDs with the one that PwnCNC offers with the ingenious plug-and-play enclosure they invented. Also don’t forget the excellent support you get when you buy a PwnCNC product.
It is possible you did not correctly set up the programming of the Huanyang VFD. I have used one for many years, and am satisfied that mine accurately tracks speed. I am using PWM speed control (0-10V signal). I have no doubt the pwnCNC works at least as well. Getting it preprogrammed greatly simplifies integration and avoids errors.
It is certainly possible the VFD was not properly programmed. I could not find any spindle manufacturer recommendations. There was no response from support inquiry to Zhong Hua. I found some suggested VFD settings on the web. When I experienced the non-linear performance, I posted my issue on the Masso Forum and one of Masso support team members has a Huan Yang VFD. His VFD also exhibited similar performance (6k to 24k rpm) using a different spindle. We shared VFD values, but could not identify a programming issue. After playing around and experimenting with several parameters, I decided it had to be “good enough”.
Huanyang VFD settings
PD000=0 for Parameter unlock ( 1 ) for Parameter Lock
PD001=1 For Remote Control, 0 for manual control)
PD002=0
PD003=400
PD004=400
PD005=400
PD007=20
PD008=220
PD011=120 (Minimum Setting 120)
PD009=15
PD010=8
PD13= 08 is for Factory reset, Only use this to set VFD to Factory Default Settings (do this prior to setting any others, you don’t know if current settings are valid)
PD014 Accel=12 ( Adjust to suit)
PD015 Deccl=12 (Adjust to suit) ( PD15 is ignored IF PD26=1 Then the Spindle will Coast to a Stop)
PD141=220 ( Motor Rated Voltage )
PD142=9 ( Motor Max Amps) (Set for your motor Amp Rating 2.2Kw Spindle 9 amp Max)
(Set for your motor Amp Rating 1.5Kw Spindle 7 amp Max)
PD143=2 ( Motor Number of Poles)
PD144=3000 (Max Motor RPM) =3,000= (24,000)
Leave all others at factory defaults.
