You definitely don't ever want UDCSW set to 0. For a 48V bench test, I would set it to ~38V. Setting it to zero will allow the main contactor to close before the system has precharged, which is dangerous and can damage the inverter.

tom91 wrote: ↑Thu May 22, 2025 3:41 pm https://openinverter.org/parameters/ https://openinverter.org/parameters/view.html?id=26
Whos is this?

Good point. I think I was using one based on Johus setup. I'll have a look at the other settings on there and see if that helps.
Cheers

... a zombieverter hooked up to a leaf stack on a bench (2019 gen3 160kw inverter). The PDM (DC-DC) has been removed from the stack, so it's just the motor & inverter. This is just a first spin test, so ... request is always 0nm, regardless of pot settings.

I know this is not an ideal setup, but ...

So, I've got a basic bench setup together following Damiens/Johannes' videos on the FOC tuning but I'd ... no longer works, and whilst trying with the latest 5.30R this seems to be the case (no inverter ... with BigPie who sugested trying different settings for ManualID and to watch for changes in the ...

... Looking for some guidance on getting an initial test spin with the L210.

Ver 2.20A
IS300H inverter ... INVStat = on
INVudc = 51 (testing with bench power unit at 50V)
Dir= drive (reverse shift ... a json file. In case I’ve messed up with the settings.

I've also attached a pdf of my spot values ...

... pedal/pigtail, and tried hooking it up on the test bench. I wired it correctly based on research of past posts. When I put the unit in drive, I get immediate full throttle. I started with defaults and then tried adjusting some settings (potmin/ampmin/slipstart) but nothing really changed. This seems ...

... we must use. If i set the recommended default settings to lowest recommended my car does not drive ... with the zombieverter. My first problem was bench testing a leaf stack. When reverse was selected and throttle applied the motor would run. Putting the throttle to 0 did not stop the motor. It was a ...

Parameters used for the successful bench test attached. Notes below:

-firmware version 5.32.R-foc, with Johanne's code mod applied separately to disable err_out pin that was preventing SPI comms
-24V ... set quite low at +/-20A

Was able to successfully operate in forward and reverse with these settings.

... the motor and the magnet on the shaft. When dry testing it performed well.
But in the car some unexpected things happen.
All settings are default except the boost. When the boost is up and the motor in ... are constant.
The only difference with the bench test is that I connected now 150V .
I updated ...

... hand.

Unfortunately, I'm still having trouble performing a low-voltage test. Here's a video demonstrating the problem, as well as the tests I ... in the OpenInverter web interface.

But my low-voltage test (using the settings in Damien's video, but with two 12v car batteries like in this Boxter ...

... there a video of damien using the dc board??

Bench test, not vehicle test. But yes.

also nick's website appears to be offline now sad.......

Oh what a shame.

Archive.org has it, but no pics. I'll repost text. Has some character/translation issues from the spanish keyboard settings but it's ...

... focus right now is getting one running on the bench (refer my other thread where I asked about how to build a test battery).

Once that is done, I'll start getting it into the vehicle. But already it ... the Nissan ePower ICE engines have two rpm settings, one at 2500, one at 4000. The ICE chooses ...

... LDU with a new OpenInverter board running the latest firmware. I'm doing low-voltage tests with two ... to fix this.

I'm using the default inverter settings, except:
- udcmin is 0v
- udcsw is 15v ... I powered the encoder directly with a 5v bench power supply. It was not connected to the ...

... drain so need a pullup on the input.

(On the bench I think you can probably read the output from ... connecting this to an input, but I haven't tested that.)

Power

The CMUs don't do anything at ... expects to see a 5 byte serial packet. Serial settings are unusual: 1200bps, Even parity, 1.5 stop ...

... with a car charger and went back for some more testing. Cautiously setting some values low as I get ... time. But happily, DC-DC was working on the bench and I didn't blow anything up!

Moved on to ... PCS videos, this is down to my own timing/settings. Manual, enable on, plugging in the granny ...

... Prius Gen3.

I'm starting with the leaf EM57 settings and changing the pole # and going from there.

Should I be able to spin this without the resolver as a test? I swear I saw video on your blog with the resolver plug hanging. I haven't wired that yet :)

I have a 60v 5a bench power supply. I wonder if ...

... post that looked at the wiring and GS450H VCU benchmarking, next I did some work with the ... the inverter and changing some of the voltage settings to work with the bench power supply (60V ... bench PSU). This is very close to the GS450H test
- No motors rotating in forward or reverse ...

... driving has been extremely limited.
(Default Settings)
1. Bench testing: Low voltage testing, I was melting wires. I had a troubleshooting session with Johannes and he helped me identify that it was my encoder wiring. Fixed that and I was good to go. Bench testing was all good.
2. Full voltage testing ...

... of them --- UDC.

So all is well and I have a spinning motor! Thanks for the tips which led me down the solution trail !!!

Ended up with these settings:

"udcgain": 5.439,
"udcofs": 299,


So recall the original settings as shipped were:

"udcgain": 5.65,
"udcofs": 250,


These should have ...

... this at all here (although this is only on the bench, but it's still a complete inverter/motor ... direction is changed.

What are your idle settings? (I have no idle set here)

From your previous ... your motor phase wires and doing the direction test would get a 'true no movement' sample, but that ...

'ning All,

I've been playing with regen settings on my bench, and have either stumbled across a potential concern, or more likely uncovered a(nother) fundamental misunderstanding of the openinverter code :) The below is mainly from my reading of the code - I don't have a good enough setup to test regen ...

That simple piece of code actually works!!
I testdrowe the car with a DC-voltage of 236V according to ... pack.
I will test with higher voltage settings to find out what battery pack modifications ... Experimental code. Only tested on the bench! Use at your own risk!
*/
// Change log
/*

1_2 ...

... drive including deadtime.
Works on the bench on a Arduino Pro Mini. Next step to test in inverter with low voltage and then with battery voltage.

/*
Runs atmega328p buck/boost control on Prius ... for PWMDutyMin and PWMDutyMax for easier settings

1_1
* Replaced Metro library with use of ...

This is the config I use for testing the motor in "free wheel" mode.
If you have it on the bench you may have to lower the Boost setting, so it don't jump.

Remember that inverter PWM polarity must be ... long run.
It's much easier to "play" with the settings when you have free wheels, then on the road ...