Hello Sphereists,
I'm about at the end of my rope. My son and I built him an electric kickbike a couple of years ago using a Bafang FR G020.500.D front hub in the rear. We run a P850c display, and run a 52v battery. Everything worked great until I decided to try to internally route the 1-to-4 cable and pinched it between the deck and the frame. Must have shorted something out, as the display showed a 08H error (hall sensor, but I think it's also a general 'motor not found' error).
My first troubleshooting step was to replace the motor extension cable I'd damaged, but I got the same result. Panicking that I'd damaged the motor, I bought a replacement and swapped the internals into the 20" wheel. Same result. So it must be the controller, right?
Here are the specs of the controller that came with our kit:
Voltage: DC48V
Undervoltage: 39+/-1V
Brake Type: P-
Type: YCSV126-017-48T
Motor Phase Angle: 120deg
Current Limiting: 22+/-1A
I've now been through several replacement controllers, but it seems that they either don't support 52v, only support a KT display, or just refuse to talk to the motor. This was the case with my most recent purchase after I spent quite a lot of time discussing my needs with the vendor. He detuned a 750w controller from 25 to 22A peak, and replaced the 3-pin connector with the 9-pin that matches my motor. I was sure that would do it, but, alas, when I connect it all up the display shows no errors, I blip the throttle, the wheel moves a few mm, and then stops with 08H again.
It seems like my options are to ditch the P850c and get a KT display and controller, or find a new one that's compatible with my motor and display and battery. I'd very much prefer the latter, as I don't really care for the KT displays. If anyone has a lead on a controller that will work I'd be enormously grateful!
I'm about at the end of my rope. My son and I built him an electric kickbike a couple of years ago using a Bafang FR G020.500.D front hub in the rear. We run a P850c display, and run a 52v battery. Everything worked great until I decided to try to internally route the 1-to-4 cable and pinched it between the deck and the frame. Must have shorted something out, as the display showed a 08H error (hall sensor, but I think it's also a general 'motor not found' error).
My first troubleshooting step was to replace the motor extension cable I'd damaged, but I got the same result. Panicking that I'd damaged the motor, I bought a replacement and swapped the internals into the 20" wheel. Same result. So it must be the controller, right?
Here are the specs of the controller that came with our kit:
Voltage: DC48V
Undervoltage: 39+/-1V
Brake Type: P-
Type: YCSV126-017-48T
Motor Phase Angle: 120deg
Current Limiting: 22+/-1A
I've now been through several replacement controllers, but it seems that they either don't support 52v, only support a KT display, or just refuse to talk to the motor. This was the case with my most recent purchase after I spent quite a lot of time discussing my needs with the vendor. He detuned a 750w controller from 25 to 22A peak, and replaced the 3-pin connector with the 9-pin that matches my motor. I was sure that would do it, but, alas, when I connect it all up the display shows no errors, I blip the throttle, the wheel moves a few mm, and then stops with 08H again.
It seems like my options are to ditch the P850c and get a KT display and controller, or find a new one that's compatible with my motor and display and battery. I'd very much prefer the latter, as I don't really care for the KT displays. If anyone has a lead on a controller that will work I'd be enormously grateful!