Controller Upgrade
- Thread starter Grampy
- Start date
Yeah.. Did change both display and controller. KT LCD3 and KT 35 amp controller. But no luck.
Reopening this thread. Could not get this to work. Want to kind of start from scratch. Bafang 750watt rear motor is good, 48v battery is good. Suggestions for new controller, wiring harness, and display that will all work together with current motor with 3 pin connector, and throttle and PAS both with 3 pin connector.
AHicks
Well-Known Member
- Region
- USA
- City
- Snow Bird - Summer S.E. Michigan, Winter Gulf Coast North Central Fl.
This can be done, but it's not going to just plug in and go.
I'm guessing your Bolton supplied KT brand controller is set up for a hub motor using hall sensors. The controller you need will have to be set up for a hub motor without hall sensors, or a controller that will work with both. That controller will work with the 3 wire motor you have. KT makes these as well, and they'll work with your lcd-3.
Another option, one that might be easier, would be to install a different motor - one like the Rover uses.
I'm guessing your Bolton supplied KT brand controller is set up for a hub motor using hall sensors. The controller you need will have to be set up for a hub motor without hall sensors, or a controller that will work with both. That controller will work with the 3 wire motor you have. KT makes these as well, and they'll work with your lcd-3.
Another option, one that might be easier, would be to install a different motor - one like the Rover uses.
harryS
Well-Known Member
You must have mistyped when you said your BAM has a three pin motor connection. That has AHicks wondering about sensorless motors. Me too, but I went back to your first post. It connected right up to your 35A KT controller, and walk assist worked. So your motor connector is the 9 pin, the motor has hall sensors, and it's all good because walk mode worked.
You can mess up the C parameters so throttle won't work. Set C10 to y and reset the display back to factory parameters.
Are these connectors for the throttle and PAS the round 3 pinners? Again, it's possible BAM switched them. I see this all the time on different controllers with the flat three pin JST connectors. I'd like to see a pic of your throttle connector/
You can mess up the C parameters so throttle won't work. Set C10 to y and reset the display back to factory parameters.
Are these connectors for the throttle and PAS the round 3 pinners? Again, it's possible BAM switched them. I see this all the time on different controllers with the flat three pin JST connectors. I'd like to see a pic of your throttle connector/
No... connection to motor has only 3 pins.
Actually looking to start over. Keep same motor and battery and find a new controller, new wire harness, new display, that are all compatible. The only way I think I can get it to work.
Or maybe somebody knows of a wire harness that will pull the 3 pin motor, KT controller and KT LCD3 display all together.
ninetimes
New Member
It's a Julet Z916. Kind of an oddball, unfortunately.
Edit: Not actually that odd, but usually used on higher amp controllers/motors.
AHicks
Well-Known Member
- Region
- USA
- City
- Snow Bird - Summer S.E. Michigan, Winter Gulf Coast North Central Fl.
I think it's normally used on the Bafang motors set up for fat tires/175mm drop outs.
If the one on the controller plugs into it, you should be fine. The fact you had "walk mode" working earlier tells me there should be no concern here.
So back to the parameter settings. Did you do the factory reset (C10=y ) Harry suggested earlier?
If the display is turning on, what is working? Is there a PAS number showing?
If the one on the controller plugs into it, you should be fine. The fact you had "walk mode" working earlier tells me there should be no concern here.
So back to the parameter settings. Did you do the factory reset (C10=y ) Harry suggested earlier?
If the display is turning on, what is working? Is there a PAS number showing?
Not green ... gray. Two should be for headlight.
AHicks
Well-Known Member
- Region
- USA
- City
- Snow Bird - Summer S.E. Michigan, Winter Gulf Coast North Central Fl.
Wish I could be more help.
Would I be wrong to assume that some of those wires are to your brake switches? What else is up front feeding from that harness? Have you tried eliminating those functions/wires to possibly reveal what else needs to be connected?
Here's a link to the non waterproof version of the KT controller similar to yours. You'll see there are 2 charts showing details of wire colors and functions. I don't know for sure if they are going to match what you have going on or not.
Would I be wrong to assume that some of those wires are to your brake switches? What else is up front feeding from that harness? Have you tried eliminating those functions/wires to possibly reveal what else needs to be connected?
Here's a link to the non waterproof version of the KT controller similar to yours. You'll see there are 2 charts showing details of wire colors and functions. I don't know for sure if they are going to match what you have going on or not.
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