openinverter forum

Hi everyone, I'm new to this world of EV conversions and playing with electronics.
I have purchased the board from Damian and connected 12v supply into Conn 6.13 & 6.19, but do not see anything on the board.
I do not have WiFi as well. Please do let me know if there are other ways to connect.

shubhash

you should see a LED 3V3 lit up if it don't check connections...

Nope, I don’t see anything.
Here’s how it’s connected…

Per the above, check your connections. Then with a multimeter check that you have power to the board. Info on board layout can be found by selecting ‘view code’ from here:

https://github.com/damienmaguire/Tesla-Front-Drive-Unit

Check what do you measure across C47?
And From +D1 to GND?

EV_Builder wrote: ↑Sat Jun 11, 2022 8:15 am Check what do you measure across C47?
And From +D1 to GND?

Across C47 - 0.5v
+D1 to Gnd - 12v

Should I increase voltage to say 45v?

No, no, don't increase.

+D1 is 12Volts, that means the diode is blocking right?
How much you measure at D1's other side? Again to GND?

Is het possible that you have polarity swapped?
Don't swap it because I suggest, but check it first.

Just back from my own battle will grab the schematic later and check my theory.

EV_Builder wrote: ↑Sat Jun 11, 2022 5:43 pm No, no, don't increase.

+D1 is 12Volts, that means the diode is blocking right?
How much you measure at D1's other side? Again to GND?

Is het possible that you have polarity swapped?
Don't swap it because I suggest, but check it first.

Just back from my own battle will grab the schematic later and check my theory.

Hi, sorry for my delay...
I have managed to get a Molex MX150 connector so that my wiring is cleaner.
Stilllll no movement..........

Before D1 its 12v, after D1 shows 11.5v.
I connected up the forward cable, and potentiometer for the throttle.
However, across the potentiometer supply & ground pins I only read 1.6v, instead of 5v. Any reason for this?