LEAFer wrote:Also ... be aware that your MCS is not aware of the "proximity" signal in J1772-2010. That means you should cut power on the upstream side (at the MCS or "higher") before removing the J-plug from the car. (You probably already knew this ... but just so everyone else is aware.)
LEAFer are you sure about the needing to cut power part? Certainly the MCS is not J1772-2010 but it is J1772 and produces the J1772 pilot signal. The MCS behaves with the LEAF just as it did before with other EVs except when the timers are involved. Also does this "proximity" signal come from a different line on the on the Yazaki connector? The reason I ask is the only lines in the Yazaki connector were the same ones that were in the Avcon connector I replaced and are the following:
Green wire = Ground
Black Wire = Line 1
White wire = Line 2
Blue Wire = Pilot (communication)
The "cut power ... before removing J1772 plug" is a precaution that applies mostly when the car is still charging with power running thru the cable. The disconnect motion when you remove the J-plug does indeed "cut" the pilot signal and in essence tell the MCS to cut power automatically. But unlike the "strain relief" (at the EVSE end) safety feature, where the pilot signal gets pulled first if the cable gets yanked, there is no equivalent function, EXCEPT thru the proximity signal, on the J-plug side. So ... small as the possibility may be ... depending on timing and plug motion ... if you have power in the J-plug, and the proximity signal is NOT functioning as designed, then you could end up with a situation of arcing across the high-voltage pins while pulling the J-plug.
Ask Clipper Creek when you talk to them ... that's how I understand the J1772-2010 function of the proximity signal.
I too need to eat a little bit of crow today ... see my post on the next page made at 6:02pm. The above statement
But unlike the "strain relief" (at the EVSE end) safety feature, where the pilot signal gets pulled first if the cable gets yanked, there is no equivalent function, EXCEPT thru the proximity signal, on the J-plug side.
is incorrect or at least misleading. Also see Gary's info in the next post below.