Search found 39 matches

by ev340
Sun Apr 30, 2023 7:07 am
Forum: Tesla
Topic: I damaged Tesla motor current Hall sensors
Replies: 5
Views: 654

Re: I damaged Tesla motor current Hall sensors

Thank yu so much I have found the right sensor on Mouser. Damien came to the rescue. ;-) Possibly a little late, but be careful of the orientation within the epoxy. I can’t remember which way round they are now but there is a correct way. The sensor itself has a corner missing from one side. Make s...
by ev340
Sat Oct 01, 2022 5:41 pm
Forum: Tesla
Topic: Tesla Gen 3 charger compatibility [SOLVED]
Replies: 19
Views: 4062

Re: Tesla Gen 3 charger compatibility [SOLVED]

Thanks... Would you advise me if i can wire 3x Gen3 Charger Enable and Active in parallel as single output so i can connect them directly to my DUE board? I would then have only 1x Enable pin and 1x Active pin on my DUE to steer all chargers. i would setup charger in 3phase mode anyway. Is that doa...
by ev340
Tue Sep 20, 2022 10:43 am
Forum: Tesla
Topic: Tesla Gen 3 charger compatibility [SOLVED]
Replies: 19
Views: 4062

Re: Tesla Gen 3 charger compatibility [SOLVED]

Hi Can anyone confirms to me if it is OK to use all straight wires on Gen3 charger modules the way Damien shows in his video? If you actually used them like that for CAN lines how is it working then? I can see on some of my equipment if i use straight lines for a bit of distance on CAN it actually ...
by ev340
Thu Jan 20, 2022 2:34 pm
Forum: Chevy/Opel/Vauxhall/PSA
Topic: WARNING!!! Chevy Volt Battery users
Replies: 8
Views: 6043

Re: WARNING!!! Chevy Volt Battery users

Oof I’m sorry this happened to you but you’ve absolutely saved people’s projects with this post!
Thank you!
by ev340
Wed Jan 05, 2022 3:47 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

In fact every half bridge shorts out when connected in reverse because of the freewheeling diodes that are in it. It much sounds like you are precharging into a dead short, be it reverse polarity or something else. -sigh- it appears you were correct, at least in part. I had some success with a 12v ...
by ev340
Sat Jan 01, 2022 6:37 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

Setting udcnom to 0 stops the software from altering settings according to what the udcnom voltage is set to and what the battery pack is actually at. Therefore allowing Boost to be what you set manually without being changed by pack voltage. I was concerned because the boostcalc in your data showe...
by ev340
Sat Jan 01, 2022 6:07 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

Peter wrote: Sat Jan 01, 2022 5:35 pm Set udcnom to 0 and set Boost at 6000 or possibly more as 12v is a low voltage.
I don’t fully understand the function of the parameters. I‘ll do some google tonight and see :)
by ev340
Sat Jan 01, 2022 5:30 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

You are looking for 0 volts across main contactor high current terminals when energised. You may be able to run motor on 12v if it can draw enough current, possibly 5A - 10A with no load on motor. Yeah I was getting 360v across when like you say I’d want close to 0v. :( My car battery should do 10A...
by ev340
Sat Jan 01, 2022 4:29 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

Precharged fine at 12v.... tapped the ‘start’ wire to 12v and the main contractor clicked... is that it? Is it okay? :O ??
Is it just my settings are wrong?

I changed udcnorm to 11 from 360
Udcsw to 10 from 330


Can I test the throttle a little with 12v or is that a bad idea?
by ev340
Sat Jan 01, 2022 3:50 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

Isolate the HV supply, disconnect the HV leads to motor and test resistance across the SDU motor HV input. Note readings with meter leads reversed too. You should see a resistance fall and rise due to the DC bus caps but resistance should settle in time once they are up to meter voltage. I would su...
by ev340
Sat Jan 01, 2022 3:40 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

Update!! I have since put a voltage tester either side of the main contactor, and the voltage doesn’t rise, (the delta stays 360 volts) but the water in the kettle sizzles a little so current is flowing? So that’s why the precharge fails... but why is the voltage not rising at all across the main co...
by ev340
Sat Jan 01, 2022 3:21 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

Does the SDU have reverse polarity protection, i.e. a diode ? Could you have the wiring reversed to SDU after your HV box build ? I’m not sure if it does but I know for certain it’s not reversed, I checked it 100 times before connecting. I literally have the money for this once... if I mess anythin...
by ev340
Sat Jan 01, 2022 3:05 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Re: Failing to precharge

Do you have a DCDC converter or similar load connected AFTER precharge/contactor? In that case DCDC would pull current through resistor and voltage would never reach DCSW parameter. If you have Ampera battery you may want to use its precharge resistor and additional contactor for DCDC :). Or like m...
by ev340
Sat Jan 01, 2022 1:46 pm
Forum: Getting Started
Topic: Failing to precharge
Replies: 18
Views: 3230

Failing to precharge

My dumb arse can’t figure out why... I was able to successfully precharge twice, I then made a HV box with much thicker wires. And the first time I tried to precharge it blew up the resistor I had been using. I then used a kettle and it still fails to close the main contactor. (But it boiled the wat...
by ev340
Fri Nov 19, 2021 10:57 pm
Forum: Tesla
Topic: Tesla Gen 3 charger compatibility [SOLVED]
Replies: 19
Views: 4062

Re: Tesla Gen 3 charger compatibility [SOLVED]

The difference between 48A and 72A is easy to see, as the 48A only has 2 instead of 3 modules. I think there are also some with only one module. US models differ in the hardware only in the contactor part, which is normally not used by us. I used the space on mine to accommodate the DC contactors f...
by ev340
Fri Nov 12, 2021 11:55 pm
Forum: Tesla
Topic: Tesla Gen 3 charger compatibility [SOLVED]
Replies: 19
Views: 4062

Re: Tesla Gen 3 charger compatibility [SOLVED]

Cool I’m away for a while so can’t show you specifics but I have an eu version, so no modification required. Yes I've seen it is a bit more difficult to wire gen3 vs gen2 😊. Do you know if your charger is 10 kw or 18.5kw? Trying to decide between gen2 and gen3. If they were the same price which one...
by ev340
Fri Nov 12, 2021 9:39 pm
Forum: Tesla
Topic: Tesla Gen 3 charger compatibility [SOLVED]
Replies: 19
Views: 4062

Re: Tesla Gen 3 charger compatibility [SOLVED]

I’m happy to talk through my progress. If that’s useful to you! Yes that would be very useful. I need a charging solution and researching the Tesla option too. It's a bit confusing with the differences between US/EU Tesla charger variants and which board I need. Is your gen3 charger EU or US and is...
by ev340
Fri Nov 12, 2021 4:45 pm
Forum: Tesla
Topic: Tesla Gen 3 charger compatibility [SOLVED]
Replies: 19
Views: 4062

Re: Tesla Gen 3 charger compatibility [SOLVED]

So to avoid that mess and get the extra charge rate I’m about to buy an EU gen 3 charger (I already have the board from Damien). Hi, how are you getting on with this? Which board are you using for it? Did you manage to get it going? Thanks Hi! I was able to charge successfully from a wall socket at...
by ev340
Thu Aug 19, 2021 11:07 am
Forum: Classifieds
Topic: Needed: Melexis current sensor small drive unit
Replies: 2
Views: 788

Needed: Melexis current sensor small drive unit

Looking to buy two Melexis MLX91209LVA-CAA-002-SP current sensors from a Tesla small drive unit. My small drive unit arrived with bent pins and subsequently one of the legs broke off. Mouser are out of stock, and they’ve pushed back their delivery twice already. The other places I’ve found stock are...
by ev340
Tue Jul 20, 2021 11:20 am
Forum: General
Topic: Simpcharge Always Proximity triggered
Replies: 13
Views: 2140

Re: Simpcharge Always Proximity triggered

💪 my first charge!!!!
Boy am I relieved!
I managed 0.5amps for 1 minute before I chickened out!

Thank you for your help! :)
by ev340
Wed Jun 02, 2021 12:29 pm
Forum: General
Topic: Simpcharge Always Proximity triggered
Replies: 13
Views: 2140

Re: Simpcharge Always Proximity triggered

The main question will be will it work with all plugs. Can you measure the resistance of your plug from Proximity to ground? Hmm that is short sighted of me! The resistance was 0ohms from plug Proximity to ground pin on wall plug. I am not above having a ‘drop in’ resistor for different plugs to st...
by ev340
Tue Jun 01, 2021 8:56 pm
Forum: General
Topic: Simpcharge Always Proximity triggered
Replies: 13
Views: 2140

Re: Simpcharge Always Proximity triggered

Please have the variable resistor between Proximity and ground. Increase the resistance until the output goes low when nothing is plugged in. As so often happens life got in the way so I wasn’t able to test as soon as I had hoped. I braved getting bitten to death by flies this evening, but forgot t...
by ev340
Wed May 26, 2021 8:42 pm
Forum: General
Topic: Simpcharge Always Proximity triggered
Replies: 13
Views: 2140

Re: Simpcharge Always Proximity triggered

Please have the variable resistor between Proximity and ground. Increase the resistance until the output goes low when nothing is plugged in. Will do! Thank you! I’ll report back my findings :) Out of curiosity: Any idea what has caused this? I haven’t found any other posts with this so I assume it...
by ev340
Wed May 26, 2021 8:09 pm
Forum: General
Topic: Simpcharge Always Proximity triggered
Replies: 13
Views: 2140

Re: Simpcharge Always Proximity triggered

So with the port empty, plugged into simpcharge and all powered up the proximity pin is at 6.04v. To ground. With the charger plug in the port it’s at 2.07v I don’t have the mains plugged in though I don’t think that should make a difference? With the charger plugged in to the port the resistance fr...
by ev340
Wed May 26, 2021 7:16 pm
Forum: General
Topic: Simpcharge Always Proximity triggered
Replies: 13
Views: 2140

Re: Simpcharge Always Proximity triggered

The SimpCharge is setup to work without any resistance in the connector only in the Charge Plug. There should be a way to make it work with the resistor in the plug though. Let me have a quick think/do some math. Can you measure the voltage at the pilot pin to ground with SimpCharge plugged in and ...