Carrera e subway

[g1nga]

I have a Carrera E subway with the SR Suntour Hesc rear hub motor, the battery and screen were stolen so I replaced the battery with a Hailong 36v and a generic controller, pas sensor and screen, this one:

24V 36V 48V 250W 350W E-bike Motor sin escobillas controlador Universal G51 Color LCD Display Set para bicicleta eléctrica Scooter - AliExpress 18

Smarter Shopping, Better Living! Aliexpress.com

es.aliexpress.com

Everything works well now, well almost with the exception that I get an E7 error on the screen, the motor work perfectly, I have just got back from a 30km ride. Could it be that the controller is 350w and the motor is 250w? didn't think that would matter. also have the amps set to 12 for the motor not the battery (20ah) is that correct?

I get the error in sensor and sensorless mode.

Does anyone have any ideas?

Thanks.

 

[saneagle]

I have a Carrera E subway with the SR Suntour Hesc rear hub motor, the battery and screen were stolen so I replaced the battery with a Hailong 36v and a generic controller, pas sensor and screen, this one:

24V 36V 48V 250W 350W E-bike Motor sin escobillas controlador Universal G51 Color LCD Display Set para bicicleta eléctrica Scooter - AliExpress 18

Smarter Shopping, Better Living! Aliexpress.com

es.aliexpress.com

Everything works well now, well almost with the exception that I get an E7 error on the screen, the motor work perfectly, I have just got back from a 30km ride. Could it be that the controller is 350w and the motor is 250w? didn't think that would matter. also have the amps set to 12 for the motor not the battery (20ah) is that correct?

I get the error in sensor and sensorless mode.

Does anyone have any ideas?

Thanks.

If your battery is 36v, you can go as high as 20A quite safely. If it's 48v, 15A is safe. You can probably go another 2A above those without any problem, but I'm not sure whether that would cause wear to the nylon gears. Motors don't have power. They've no idea what they are and neither does the controller. The controller sends the power and the motor does its best to convert it into motion.