I was looking at what appears to be your controller on the BMSbattery website and the connector color codes they show under the "KU123_controller_diagram" do not seem to match the connector color codes on your unit.
Here's where I found the diagram:
http://www.bmsbattery.com/controller/36 ... oller.html
The PDF can be downloaded from the link shown at the bottom of the page:
KU123 High speed controller diagram
Not sure what's going on here but, this wouldn't be the first time that I've seen web based manufacturer wiring diagrams and color codes that don't seem to match what they sell.