magudaman
10 kW
The short is the Kelly KDS Series motor controllers don't have battery side current limiting. The long is below:
I spent that last 3 day getting my scooter all wired up to a tee, the way I planned on keeping for life. Try hard to get proper cable management and such. SO I get to programming my new Kelly brushless controller and get the battery current set at 20% of 60a controller so 12a and 100% phase current just to test it out. Take the scooter for a spin and popped a fuse. Hmm Hmmm 52 amps shows on the watt meter. Replace the fuse and drop the phase current down to 50%. Popped my fuse again 35 amps on the amp meter. Now I just turn the phase current down 20% and hey I don't pop the fuse. Heck the scooter won't even propel itself.
So I contacted Kelly and Fany told me this:
Say what? My max battery current is set at 12 amps yet I am seeing 50 something amps!
So basically the end result is I am going first try to return this controller and if they don't take it back I will just contest the charge.
Kelly's website states the features for the controller :
Configurable limit for motor current and battery current.
I also notice this controller doesn't state current monitoring on the input like the larger controllers, so I am guessing that is why this controller really can't do it. But the description page that falsely state the capabilities.
Currently if I set the controller correctly with roughly 25amp phase current I have no hill climbing ability or start up torque yet can pull the full 1200 watts if I can make it up to full speed.
Bummer.
I spent that last 3 day getting my scooter all wired up to a tee, the way I planned on keeping for life. Try hard to get proper cable management and such. SO I get to programming my new Kelly brushless controller and get the battery current set at 20% of 60a controller so 12a and 100% phase current just to test it out. Take the scooter for a spin and popped a fuse. Hmm Hmmm 52 amps shows on the watt meter. Replace the fuse and drop the phase current down to 50%. Popped my fuse again 35 amps on the amp meter. Now I just turn the phase current down 20% and hey I don't pop the fuse. Heck the scooter won't even propel itself.
So I contacted Kelly and Fany told me this:
Hi Justin,
The continuous current can not be adjusted.
We only can adjust the max motor current and battery current in the user program.
You can try to limit the max motor current and max battery current also.
Thanks,
Fany
Say what? My max battery current is set at 12 amps yet I am seeing 50 something amps!
So basically the end result is I am going first try to return this controller and if they don't take it back I will just contest the charge.
Kelly's website states the features for the controller :
Configurable limit for motor current and battery current.
I also notice this controller doesn't state current monitoring on the input like the larger controllers, so I am guessing that is why this controller really can't do it. But the description page that falsely state the capabilities.
Currently if I set the controller correctly with roughly 25amp phase current I have no hill climbing ability or start up torque yet can pull the full 1200 watts if I can make it up to full speed.
Bummer.