I have a treadmill that the motor speed controller board has failed, I bought a Chinese 10kw power supply and added a 50amp bridge rectifier. The treadmill now runs with the speed control pot from the psu mounted on the upper panel so speed is adjustable by hand. I use the machine at a brisk walking pace and the motor appears to get too hot now, at 77V DC input to the unloaded 1.5HP 230V DC motor I can measure 59V AC. The current draw is 2 to 3 Amps DC with 6 Amps AC supply load.
Do I have too dirty a psu with that amount of AC showing on my meter?
I have attempted to repair the original KXTL 230 controller board but after replacing IRFP460C and F10U60DN plus the 390microfarad 400v Cap I still have no motor Volts on the output terminals.
Although I would still like to repair the board its now past my capabilities without guidance.
I wonder if KBmg 212d controller would be my best bet to get a clean supply to keep the motor from cooking?
Being on lockdown I have plenty of free time to explore all the options if anyone would like to give an input please.
Do I have too dirty a psu with that amount of AC showing on my meter?
I have attempted to repair the original KXTL 230 controller board but after replacing IRFP460C and F10U60DN plus the 390microfarad 400v Cap I still have no motor Volts on the output terminals.
Although I would still like to repair the board its now past my capabilities without guidance.
I wonder if KBmg 212d controller would be my best bet to get a clean supply to keep the motor from cooking?
Being on lockdown I have plenty of free time to explore all the options if anyone would like to give an input please.