I'm not sure I'm an expert on the circuit, but I do sell the J1772 Plugs and Inlets and actually helped the factory I buy mine from to implement the Proximity circuit in the Plugs that they manufacture and I sell.
With the switch, in its' normal position, unpressed, you should read 150ohms. When it is pressed, to release the catch and also send a signal to the onboard charger to stop charging, it should read 480 ohms. Some of the confusion arises from the switch itself, it can be configured to be either NO or NC in its' unpressed state. For this application it should be NO in its' unpressed state. Rush www.TucsonEV.com > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of David Ladd > Sent: Wednesday, May 01, 2013 8:03 AM > To: Electric Vehicle Discussion List > Subject: [EVDL] J1772 proximity stuff > > I'm working on assembling a home EVSE out of old parts (EVI DS-50 and > J1772 plug from ebay). I got the cord/plug yesterday, and I'm just not clear > on what I should be seeing when putting a meter on the connector. > > Measuring proximity to ground I get 150ohm. When I press the switch, I get > 480ohm. According to http://code.google.com/p/open- > evse/wiki/J1772Basics it should be the other way around, 480ohm, then > 150ohm when the switch is depressed. > > Is my connector wired wrong? I'm finding all kinds of conflicting advice on > this when I google it. I don't think it matters either way for me since I'm just > charging a conversion with a dumb charger, but I'd like to have it set up in > accordance to the spec. Before trying to open up the connector I'd like to > verify with the experts what I should be 'seeing' at the plug. > > david. > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA > (http://groups.yahoo.com/group/NEDRA) > > > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2013.0.3272 / Virus Database: 3162/6287 - Release Date: 04/30/13
_______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
