The wiki is wrong. The drawing 4.4 and all other drawings in SAE J1772, October 2012, shows switch S3 (proximity) as a normally closed switch. David Kerzel Modular EV Power LLC
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of corbin dunn Sent: Wednesday, May 08, 2013 7:23 PM To: Electric Vehicle Discussion List Subject: Re: [EVDL] J1772 proximity stuff The Wikipedia wiki should be right: http://en.wikipedia.org/wiki/SAE_J1772 corbin On May 7, 2013, at 2:12 PM, Cor van de Water <[email protected]> wrote: > The advantage of a Wiki (if the author is responsive) that the info > can be corrected - it appears that has happened now. (at least the > decription, the picture may take a little more time) > > Cor van de Water > Chief Scientist > Proxim Wireless Corporation http://www.proxim.com > Email: [email protected] Private: http://www.cvandewater.info > Skype: cor_van_de_water Tel: +1 408 383 7626 > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of David Ladd > Sent: Wednesday, May 01, 2013 1:05 PM > To: 'Electric Vehicle Discussion List' > Subject: Re: [EVDL] J1772 proximity stuff > > You are correct, of course. I just went down and ohm'd out a > Chargepoint station. It reads 150 ohms, and goes up to 480 ohms when > the release button is pressed just like you said in your first email. > This is the same as the one I just bought, so I'll stop thinking about > this stuff now. :-) > > Annoying though, that the Open EVSE wiki site is just flat out incorrect on this. You'd think they would know how it worked :confused: > > david. > >> ________________________________ >> From: Rush Dougherty <[email protected]> >> To: 'David Ladd' <[email protected]>; 'Electric Vehicle Discussion >> List' <[email protected]> >> Sent: Wednesday, May 1, 2013 11:56 AM >> Subject: RE: [EVDL] J1772 proximity stuff >> >> >> I think another part of the confusion is in the link that you >> provided in your first email. That is not the schematic that is in the J1772 SAE Spec. >> The switch in the link, S3, is shown open. >> >> In the Schematic of the J1772 SAE Spec is it shown closed. So that it >> reads >> 150 ohms and will read 480 ohms when closed. >> >> From the J1772 SAE Spec - >> 5.5 Digital Data Transfer- >> 13. Switch S3 opens when the connector latch lever is actuated. This >> opens the Proximity Circuit. The EV/PHEV should terminate charge >> prior to connector disconnect to prevent connector contact arc >> damage. Charge resumption after S3 closing is OEM specific. >> >> As I said in my previous post the switch itself can be configured to >> be NO or NC when it is in its unpressed, or unactuated state. So that >> when it is actuated it OPENS the circuit. >> >> Go measure the Chargepoint and tell us of your results. I think that >> you'll just confirm what I've stated. >> >> Rush >> www.TucsonEV.com > _______________________________________________ > 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) > > _______________________________________________ > 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) _______________________________________________ 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) _______________________________________________ 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)
