Re: [Machinekit] VFD for 180v DC motor

2020-02-08 Thread Aurelien
Well at the end i have test the original board with ampere meter and i have see some current pic until 13/16A when i load the motor at low rpm. Over the web info about this lathe or this motor power and with math i have set the KBMG to 5A max, RCL/FCL set to default 150% so i wait for max ~7.5A

Re: [Machinekit] VFD for 180v DC motor

2020-02-08 Thread Aurelien
Hi Thanks for your reply, at middle to high rpm ~800/3000 the KBMG have a good torque. This is only for low rpm i have try many things with IR and Resp max etc but as you suggest i can try another attempt ! I haven't change the default RCL FCL settings. Yes setup is speed mode, regen to stop,

Re: [Machinekit] VFD for 180v DC motor

2020-02-08 Thread justin White
That KBMG can easily handle that 1hp motor, it's designed for up to 2hp. On a brushed DC motor the torque is directly related to current. If you have a problem with low end torque you probably did not setup the IR comp and CL pots correctly. That drive needs to be setup in speed mode as you are