openinverter forum

Looks like I might be investing in a long steel bar to do some experiments

Romale wrote: ↑Tue Aug 13, 2024 10:04 am item "a".

Hm... i am thinking of connecting to my other inverter and sensing unknown wires for transient signal when putting it in short. Of course i would be doing this with 48Vdc power supply...

In Volt inverter i see fault signal as a weak pullup with NMOS pulling it down when inverter is active. If something would happen control would release the pullup and stop the logic. A failsafe design.
If control is any similar the signal would look as a pullup to Va when powering up. Then when you start the PWM you should see that signal drop and if you provide any 3V to that line you should see a stop to PWM.
I think that would be best tested with OEM wiring intact, since inverter already requires 12V signal to operate. If you remove that signal you stop PWM completely.

@Romale: I put general info of Outlander inverter OI lobotomy to wiki. Feel free to input more data.
https://openinverter.org/wiki/OEM_Inver ... dification

Hi. Yes, there is one significant edit. The HV signal must go through a divider of two 3.3 kOhm resistors. Otherwise, the level becomes too high after about 330 volts and the v3 board is not able to fully measure.
I soldered two resistors directly at the input of the measurement wire, through one signal itself, and the second from the entry point to the ground.

Ok i put the latest comment in there as well...

aot93 wrote: ↑Thu May 20, 2021 11:00 pm For me it was bad connection between inverter and motor ( Resolver)

I metered every pin on the inverter to check against the values listed in the service manual (see attached)

Note that RSDN should be pulled low.

Once that was sorted it all worked very easy, no particular sequence.

2021-05-20 23_58_10-[W_M]OUTLANDER PHEV (GG#).png

Hi , Just want to ask about your RSDN post, does it mean you apply +12V to RSDN if you want to shutdown? and cutoff/dont connect RSDN if yiu want to enable/start the motor? thanks

Belatedly noticed the earlier posts about nicked seals etc. If anyone needs spare parts I have two gearboxes that I need to get rid of. Available for collection in South Manchester.