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Testing EVSE without EV

How can i test my EVSE without connecting it to the EV? Can i connect the output of the contactor to a lamp load (without connecting these output terminals to J1772)  by leaving the control pilot and PP open ?

7 CommentsSorted by Oldest First

Control pilot must be working in order to test. You can simulate a vehicle by connecting an 880 Ohm resistor and a Diode in series from ground to Control Pilot. 

3 people like this

Thank you for your reply sir...


Dear support, this post is the closest to what I intend to do. I am in the midst of my own EV conversion. I have a 24S battery pack, so I want to set the EVSE's output voltage to 100.8V. How do communicate to my EVSE to set the output voltage level via the control pilot wire? Thank you for your time.

Actually if I can not change the output voltage of the OpenEVSE device, I can increase my battery pack to match the output voltage of the OpenEVSE device. What is the output DC voltage when I supply it with 120V AC input voltage? What about when I supply it with 220V AC? Many thanks.
Sorry for my ignorance. After more research, I realized that the output of the OpenEVSE device is AC voltage. Is there an AC to DC device that you can recommend? Basically I am looking for a device to go between the OpenEVSE box and my battery pack. Thanks

Hi ,


We had tried the same steps to test openEVSE, but it didn't work.

We had exactly followed the same steps as mentioned below


"Control pilot must be working in order to test. You can simulate a vehicle by connecting an 880 Ohm resistor and a Diode in series from ground to Control Pilot. "


The openevse page was loading but it didn't show any reading for the current and the power consumed.

Could you please help


Best Regards

Sathya 

When testing the pilot with a simple resistor and diode, there will be no load on the station so no current or power will flow. If you need to test power flow a load will need to be installed on the output such as a electric heater.


Here is a guide on testing.

https://openevse.dozuki.com/Guide/Testing+Basic+and+Advanced/12?lang=en

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