Tesla Charger Support Thread

[cancer038]

great job... I wonder what price ?

[Kevin Sharpe]

I wonder what price ?

Please wait for the webshop to be updated;

https://www.evbmw.com/index.php/evbmw-webshop

[Jack Bauer]

Web interface for the v5 using olimex wifi module code uploaded to the repo :
https://github.com/damienmaguire/Tesla- ... er/V5/WiFi

I have updated the webshop to allow purchase of both partial and fully built boards but please note the following disclaimer :
BETA RELEASE FOR DEVELOPERS ONLY! DO NOT PURCHASE THIS IF YOU ARE NOT PREPARED / ABLE TO ASSIST WITH TESTING AND DEVELOPMENT! NOT A FINAL PRODUCT!!!

Once we get some testing done this will be removed but for now PLEASE abide by the warning.

[bulletbug]

Will someone with experience connecting the Tesla Gen 2 charger give me feedback on this diagram?

I'm in the US and connecting to an EVSE with J1772 plug. Once I have feedback on this, I'd like to post this in the Wiki...plus confirm that I won't be making any "unintentional spark events" when I assemble this first hand.

If this is accurate as is, great. Then please give me feedback on what I could do to make this easier to understand so I can make it better for the next new guy that comes along in the future.

TeslaGen2 Charger.pdf

(40.58 KiB) Downloaded 426 times

[Bratitude]

Will someone with experience connecting the Tesla Gen 2 charger give me feedback on this diagram?

I'm in the US and connecting to an EVSE with J1772 plug. Once I have feedback on this, I'd like to post this in the Wiki...plus confirm that I won't be making any "unintentional spark events" when I assemble this first hand.

If this is accurate as is, great. Then please give me feedback on what I could do to make this easier to understand so I can make it better for the next new guy that comes along in the future.


TeslaGen2 Charger.pdf

20amp per line? Not 15? Or one 45

[bulletbug]

the 20 amp per each of the 3 output lines was Damiens suggestion, if I understood it correctly.

[Johaljaswant]

Please advice for low AC currant, and DC current value.
Here is the screen shot.

[Johaljaswant]

Here is clear screen shot.

[Johaljaswant]

Also Voltage at pilot signal is 3 volt .
Please somebody let me know the reason for Low AC Current and DC current value as shown above in my
Previous question is due to the pilot signal low voltage. And how it can be rectified.

Thanks
Jaswant

[Bratitude]

Web interface for the v5 using olimex wifi module code uploaded to the repo :
https://github.com/damienmaguire/Tesla- ... er/V5/WiFi

I have updated the webshop to allow purchase of both partial and fully built boards but please note the following disclaimer :
BETA RELEASE FOR DEVELOPERS ONLY! DO NOT PURCHASE THIS IF YOU ARE NOT PREPARED / ABLE TO ASSIST WITH TESTING AND DEVELOPMENT! NOT A FINAL PRODUCT!!!

Once we get some testing done this will be removed but for now PLEASE abide by the warning.

Could we say with a high probability that the hardware is good to go? I’m willing to be a beta tester on my slave charger, having a good chance I won’t need to update hardware for a full functioning version.

[Kevin Sharpe]

Could we say with a high probability that the hardware is good to go? I’m willing to be a beta tester on my slave charger, having a good chance I won’t need to update hardware for a full functioning version.

Nothing has changed, this is beta hardware and software for developers only;

BETA RELEASE FOR DEVELOPERS ONLY! DO NOT PURCHASE THIS IF YOU ARE NOT PREPARED / ABLE TO ASSIST WITH TESTING AND DEVELOPMENT! NOT A FINAL PRODUCT!!!

[Bratitude]

Could we say with a high probability that the hardware is good to go? I’m willing to be a beta tester on my slave charger, having a good chance I won’t need to update hardware for a full functioning version.

Nothing has changed, this is beta hardware and software for developers only;

BETA RELEASE FOR DEVELOPERS ONLY! DO NOT PURCHASE THIS IF YOU ARE NOT PREPARED / ABLE TO ASSIST WITH TESTING AND DEVELOPMENT! NOT A FINAL PRODUCT!!!

Im just inquiring about the likelihood of another hardware revision.

I understand it’s currently a beta release for development.

[Kevin Sharpe]

Im just inquiring about the likelihood of another hardware revision.

Damien will update this forum when he has some news... until that time it's best to leave him alone and wait... you may think it's a minor interruption but he typically receives ~100 similar requests a week.

[Kevin Sharpe]

Also Voltage at pilot signal is 3 volt .

Can you produce a video showing how you are testing the charger? The EVSE Control Pilot signal should not be at 3V. See this post for description of the EVSE states;

viewtopic.php?f=10&t=78&start=120#p3747

[Jack Bauer]

The charger hardware "seems" to be ok. Testing today again and we are still fighting a bug in the firmware with the adc reading on the proximity line. I have 3 boards going out to beta customers this week and my software guy will be back on Monday so hope to update soon.

[rx7r3ev]

I have my Gen2 v3 logic board that does not seem to detect the EVSE when its plug in. The serial monitor seems to confirm that its not detecting the EVSE and the modules are off.

When power is on the logic board lights up. The module does not light up. Attempted to remove and wiggle install the logic board to make sure its pins/connectors are all set in properly.

I have read to the earlier postings on grounding the EVSE-AC, Charger Case grouding and I've confirm those. I've use two different EVSE unit and tested them against the charger with the same results. I have attempted configuring Module Enabled {1, 2, 3 or all 3}; Same with varying Auto Enabled {on; off}; Port Type is {1}; AC Current {15A}; and Can Mode to {off; master} -- all to no avail.

The DC output port is verified and connected to HV battery. I'm not getting any AC input at the charger port which is probably as expected since the EVSE did not start charging.

Any idea please help. Thanks!

[Kevin Sharpe]

I have my Gen2 v3 logic board that does not seem to detect the EVSE when its plug in. The serial monitor seems to confirm that its not detecting the EVSE and the modules are off.

Are you confident the wiring to the EVSE connector is correct? What happens to the voltage on the proximity input at the charger when you plug in the EVSE connector or push the EVSE connector button (if you have one)?

What happens if you test without an EVSE (see here)?

What is your battery voltage measured at the charger?

[rx7r3ev]

I did some measurements today and below are the readings:

Measured at the charger socket connector when the EVSE is plug in securely. The Pilot voltages is at 12volts. The proximity resistance is at 143.4 Ohms. The DC pack is at 358 volts.

What I've been noticing is that the on the logger (see attached picture), the Proximity Status is seems to be stuck at the "Button Pressed ". I made sure that the button clicks properly when plugin in. Also did cross check it with another EVSE and the log reads the same. Also made measurements for the proximity resistance with this other EVSE and its sets in at 141.5 Ohms.

Tomorrow, I try running the charger in manual mode with a live AC feed and report back.

Any other tips why the proximity is not being read properly? Thanks!

I have my Gen2 v3 logic board that does not seem to detect the EVSE when its plug in. The serial monitor seems to confirm that its not detecting the EVSE and the modules are off.

Are you confident the wiring to the EVSE connector is correct? What happens to the voltage on the proximity input at the charger when you plug in the EVSE connector or push the EVSE connector button (if you have one)?

What happens if you test without an EVSE (see here)?

What is your battery voltage measured at the charger?

[rx7r3ev]

I run the charger using a live 120 volts AC (single phase) input connected in parallel to the AC input of the charger. That worked. The modules turned on. I've tried running just 1, or 2, or 3 and it seems to worked fine. Below is the picture of the log and the settings.

After that went back and attempted to run the charger using the J1772 (with the config for EVSE use) but still no luck.

I've measured the proximity pin on the J1772 for voltage and it was 0 volts when button is pressed. And also 0 volts when release. Is this as expected? The resistance does change as in my previous post above.

[Kevin Sharpe]

Tesla Gen 3 charger working flawlessly in BEXUS this week

[Kevin Sharpe]

I've measured the proximity pin on the J1772 for voltage and it was 0 volts when button is pressed. And also 0 volts when release. Is this as expected? The resistance does change as in my previous post above.

If you're measuring the pin on the J1772 connector (i.e. not plugged into the charger) then yes this is expected because the EVSE does not supply voltage on the pin.

Here's a description of the J1772 proximity pin from Open EVSE (here);

"The proximity runs between the EV and the J1772 handle, some J1772 cordsets include 4 wires (AC Hot 1, AC Hot 2, Ground, Pilot) and some have 5 wires an additional to access the proximity circuit.

From the J1772 handle (not connected to vehicle) the proximity circuit should read about 150 ohms when measured from proximity to ground. When the button is pressed the reading should increase to about 480 ohms. The change in resistance signals the EV to stop pulling current."

What you want to verify is the proximity pin behaviour at the charger when the J1772 connector is plugged in. What voltage do you measure on the charger control board resistor R12? Does this change when you press the J1772 button?

[joromy]

Tesla Gen 3 charger working flawlessly in BEXUS this week

Nice, I have the Gen 2, but it's not waterproof. So I must have it inside.

I have started a new build and don't have room to have it inside.
The Gen 3 looks waterproof, is it?

[Kevin Sharpe]

The Gen 3 looks waterproof, is it?

I've only seen Gen 3 chargers that are missing the metal cover that sits over the orange power connectors. If this cover includes a seal then everything else looks waterproof.

[et0]

Hi all,
Requesting help for first start please - I have a Gen 2 with V4 PCB. I have loaded the Gen2TeslaChargerV4.ino

I don't have an EVSE handy, so I've wired the AC inputs to a 16A plug temporarily and just want to get some charge into the 320V battery.

I can turn off "auto start" in the menu, and then press "s" to start - a red LED comes on but nothing changes on the debug output (says not active), and no current flowing. No LEDs lighting up on the charger modules. Verified that there is definitely AC and DC present at the connectors, and the 12V supply.

What can I check?

Thanks

Code: Select all

191380 State: 0 Phases : 0 Modules Avtive : 0 OFF  D1 L
Modules Turned OFF

[Kevin Sharpe]

What can I check?

I'd recommend you read through this thread from the beginning, lots details buried in here