KU61 controller from BMSBattery - some info and a question

PetriK

10 mW
Joined
Nov 22, 2010
Messages
27
Here you are with some info on KU61 controller ...

KU61_controller.jpg


Here is the original controller wire connection diagram:
http://www.bmsbattery.com/pdf/6Mosfets.pdf

This page has quite good installation instructions:
http://elfkw.at/index.php/en/produkte/umbauanleitung

Everything else seems to wire colour by colour, but for a perfect installation the throttle gas needs to be rewired.
Throttle side - Controller side
Red - red / throttle connector
black - black / throttle connector
white - green/yellow / throttle connector
Green+yellow - Orange / power on connector
Brown - Red / power in ocnnector

There is no override max speed with white wire loop on this one.
There are two pairs not matching the colours:
- cyan/cyan connected to MSP/GND on circuit board, I assume this being automatic study wire
- white/cyan connected to US/HH on the circuit board, I assume this being the speed limiter wire

Anyhow with freeload I could not hear difference in RPM regardless of connecting purple (marked as US on PCB) wire to white/green (marked as HH on PCB).

Would be interested to know how to detect if the speed limiter is on or off ?
 
Just realized how the little frog batteryholder has just a good place for the controller. Very well kept "secret", as I really was wondering where to hide the controller.

littlefrog_battery_1_small.jpg

littlefrog_battery_2_small.jpg
 
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