Hi all, I have good news, you can dust off your KLS unit
We found how fix issue with LMX BLDC. You can regulate hall sonds from motor with regulate diodes. Output signal is based on GND (-) and we measure sondes with osciloscope and there is some signal noise with double amplitude about 0,5V (when is log 0 output fom sonde) So diodes block this and motor works fine. But I have no idea what is this signal used. And true is that phase output from unit is not sin wawe but it seems that output is only trapezoidal waweform.