|
During debugging make sure it's not hooked up to the battery pack. First, with nothing connected to B+, B- and M- bus bars, but with a throttle and the current sensor connected, turn on the 12v power to the control board. Now, put a volt meter's negative lead on PH1 or PH2, and positive lead on any of GR1 through GR10 on the control board while at zero throttle. Verify that you have zero volts. Now, give it a little throttle. The voltage should climb quickly up to around 12 volts, and then quickly fall back to zero, and the LED should start flashing. Does that happen?
|