Thanks for reporting. It would appear the Emporia firmware version does not correlate with the fault.
I have no time limit nor reduced amps.
Done: 28A to match. I'll keep it that way for a couple of months.
If you unplug it within 3 seconds of pressing the button it won’t set the fault. You have to press and hold the latch button for 10 seconds without unplugging to see if the fault sets.I have never seen the fault occur when pressing the release button while charging. Instead it only occurs when the MME reaches its charging target (80% in my case). I get the charge complete notice immediately followed by the fault notice:
Yeah. I should have been clearer, but I was in fact documenting with graphics what I believe is Normal, with a Mach-E using target SOC and Emporium plugged in with no scheduling parameters.
I disconnected the Emporia so can't measure how long it takes for the contactor to open. It didn't trigger a fault every time I charged, only faulted every three days or so. When the car was a load on the EVSE, I always waited for the contactor to open before I pulled the plug out and my guess is it took at least 3 seconds.
I misremembered what you said on timing but I ran your test this morning. I first left the Emporia set to 48A since that's a known condition where it happens. I repeatedly plugged it in and let it ramp up to full power then press the unlatch button on the handle and held for 5-8 sec before pulling out. At the 11th time I got the charge fault. That closely matches my 10% estimation. I did 48A two more times for a total of 13 with only the one fault. So that's good that I have a relatively quick way to repeat the fault should we get a "fix" for it (or if I figure out a way to monitor the power and control signals directly to determine who's at fault).
FYI starting and stopping charging too many times in a short period can cause a different error (precharge resistor overheat protection).I misremembered what you said on timing but I ran your test this morning. I first left the Emporia set to 48A since that's a known condition where it happens. I repeatedly plugged it in and let it ramp up to full power then press the unlatch button on the handle and held for 5-8 sec before pulling out. At the 11th time I got the charge fault. That closely matches my 10% estimation. I did 48A two more times for a total of 13 with only the one fault. So that's good that I have a relatively quick way to repeat the fault should we get a "fix" for it (or if I figure out a way to monitor the power and control signals directly to determine who's at fault).
I then dropped to 28A and repeated the test 13 times until my car reached its 80% and stopped requesting power. I will try 28A again tomorrow.
Would that be in the handle of the Emporia or in the wall box? My Emporia wall box was on the other side of a closed garage door. However, I did hear an immediate clicking every time I pressed the handle button. No delay. I just couldn't tell if that was from the car or the charger handle.
Charge should not stop when a cloud goes by, if so it’s set up wrong. If the solar production rate drops, it should continue charging at the minimum rate (6A) and ramp up and down with the sun. But not stop until the car is full. Might need to check your settings or complain to Emporia if they’re implementing it wrong.
The car will click immediately, the EVSE will be delayed but needs to click within 3 seconds of button press.
