- Joined
- Jan 27, 2017
- Messages
- 184
I recently built a 2x72 grinder that I’m powering with a 2hp three phase motor controlled by an HY (popular low cost eBay model) 2.2KW VFD. All the parameters were set and I’ve been testing the grinder using the VFD panel and everything was working great. I could run the motor between 0 and 70 Hz which were the parameters I had set.
Tonight I wired up the remote so I could complete the permanent installation and ran into a problem. I wired a simple toggle switch for on/off and that works fine. I wired a 5K potentiometer to control the frequency through the 5V in and 5V out terminals on the VFD as directed in the manual. The potentiometer does control the frequency and it increases as I turn it clockwise however the VFD always accelerates up to 53.65Hz on startup and the potentiometer will only adjust between 53.65 and 70.
I’ve been back through all the parameters and don’t see what might be causing this.
Any help would be appreciated, let me know what other information would be helpful in diagnosing.
Thanks!
Mark
Tonight I wired up the remote so I could complete the permanent installation and ran into a problem. I wired a simple toggle switch for on/off and that works fine. I wired a 5K potentiometer to control the frequency through the 5V in and 5V out terminals on the VFD as directed in the manual. The potentiometer does control the frequency and it increases as I turn it clockwise however the VFD always accelerates up to 53.65Hz on startup and the potentiometer will only adjust between 53.65 and 70.
I’ve been back through all the parameters and don’t see what might be causing this.
Any help would be appreciated, let me know what other information would be helpful in diagnosing.
Thanks!
Mark
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