Search found 3761 matches

by coulomb
Mon, 23 Sep 2019, 11:44
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

Is it possible that the DC/DC converter suffered an inrush current issue now that I'd removed the master precharge relay on the battery pack? ... I just noticed on my drive on Saturday that the auxiliary voltage was very low - 11.5 V or so. As if the DC/DC converter wasn't working properly :/ Lack ...
by coulomb
Sun, 22 Sep 2019, 19:15
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048MK inverter
Replies: 146
Views: 9118

Re: PIP-5048MK inverter

87 Dream wrote:
Sun, 22 Sep 2019, 17:36
Does anyone have a version of Firmware 71.50 or anything in the 71 firmware range.
PM sent.
by coulomb
Sat, 21 Sep 2019, 19:09
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

However the fuse was indeed open circuit. That was no doubt giving the isolation error. Forgive me, but how does a blown fuse cause an isolation error? To me, an isolation error is too much conductivity to chassis. By adding an open circuit, I don't see how you end up with more conductivity to anyw...
by coulomb
Sat, 21 Sep 2019, 17:32
Forum: Charging Infrastructure
Topic: PlugShare app question
Replies: 6
Views: 276

Re: PlugShare app question

On the PlugShare app, the "free" indication at the top of each charging station, is that money or availability? My understanding is that it's money. The only way to know availability is to find out if anyone has checked in at the time, and sadly not everyone does the community the simple courtesy o...
by coulomb
Sat, 21 Sep 2019, 07:52
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10196

Re: PIP inverter repairs and hardware modifications

Can you look at my pictures if you can see which of the 2SA1020 you have swapped. I would think that when one of a set of 4 gate driver transistors blows up, it's quite random as to which one will blow (depends on the phase of the output at the time, for instance). So I don't think you'll profit fr...
by coulomb
Sat, 21 Sep 2019, 07:15
Forum: Tesla EVs
Topic: Model 3 orders are now Open!
Replies: 13
Views: 1215

Re: Model 3 orders are now Open!

g4qber wrote:
Sat, 21 Sep 2019, 07:02
Wow! What a production! Multiple cameras, drone shots, really dramatic music... worth watching for the cinematography!
by coulomb
Fri, 20 Sep 2019, 22:39
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

The charger works now! Wonderful! Presumably, this is the CAN model that arrived, and you swapped out the fixed voltage model and replaced it with the CAN model. Otherwise, I think I missed a step. it was trying to pass big voltages across a 200 R resistor inside the pack. Ouch. You should check to...
by coulomb
Fri, 20 Sep 2019, 12:24
Forum: General EV Discussion
Topic: Amazon orders 100 000 Rivian trucks
Replies: 0
Views: 304

Amazon orders 100 000 Rivian trucks

"Amazon CEO Jeff Bezos has announced that he plans to begin tackling climate change by committing, among other things, to meet the goals of the UN’s Paris Agreement, as well as purchasing 100,000 vans from electric automaker Rivian, after the company had already invested $700M in the electric truck ...
by coulomb
Thu, 19 Sep 2019, 13:08
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2460
Views: 473283

Re: PIP-4048MS and PIP-5048MS inverters

Ibiza wrote:
Thu, 19 Sep 2019, 12:44
I was thinking if PIP itself can charge 18650.
Yes.
by coulomb
Tue, 17 Sep 2019, 22:29
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

What this does mean, is that I need to mount the other two modules in some way. Actually, I believe that the CAN version will have a very different minimum start voltage. It might well be fine with the battery voltage as it is. If it's the nominal 312 V @ 20 A model, it is rated for 110-440 VDC, an...
by coulomb
Sat, 14 Sep 2019, 23:18
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

Does that mean that pin E is the same potential as pack negative? It certainly does on the older Elcon/TC chargers that I'm more familiar with. I can't say for certain with the new chargers, but I'd say there is a chance of that. Some things never seem to change (like poor documentation of LED flas...
by coulomb
Sat, 14 Sep 2019, 22:28
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

Yes, the AVC2 is indeed still connected with all of this. I had assumed that the AVC2 had a diode and relevant resistors in there to start with... otherwise, what's the point of it? It certainly has the diode; it's visible in the middle right of the AVC1, right next to the pilot pin. Connecting a 2...
by coulomb
Sat, 14 Sep 2019, 22:12
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

I tried to change the resistor arrangement as per the Modular EV Power website's suggestions. I suspect a misunderstanding, or error in the web page. Putting a 880 R resistor between pilot Earth and ground caused a 'ventilation error'. Putting a 1.3kR resistor between pilot Earth and ground caused ...
by coulomb
Sat, 14 Sep 2019, 10:41
Forum: Charging Infrastructure
Topic: Ultra fast chargers (350kW/HPC) in Victoria
Replies: 16
Views: 2040

Re: Ultra fast chargers (350kW/HPC) in Victoria

any idea what it is? I agreed with your TeslaMotorClub post: it is probably a 5B Maverick solar panel module . Though it looks rather too thin, and it's hard to tell the ratio of depth to height in the photo. Perhaps it's a small set. Plus, 5B usually deliver their own gear. So I'm not so sure now....
by coulomb
Fri, 13 Sep 2019, 12:39
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

OK, they say as much on this page : "It’s the same unit packaged in a box with mounting ears and better terminal marking." (Also this page ). But I do see two capacitors large enough in capacitance that they have a polarity stripe. I'd say that one of these along with a high value resistor provides ...
by coulomb
Fri, 13 Sep 2019, 12:33
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

OK, they say as much on this page : "It’s the same unit packaged in a box with mounting ears and better terminal marking." But I do see two capacitors large enough in capacitance that they have a polarity stripe. I'd say that one of these along with a high value resistor provides the delay. One of t...
by coulomb
Fri, 13 Sep 2019, 11:29
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

Does that look like it has internal switches and timers? Granted, no. But this is an AVC 1 , the predecessor to the AVC2, and the difference could well be the timer. A timer could of course be done in software with an 8-pin microcontroller. Also, there must be more components on the back of the AVC...
by coulomb
Fri, 13 Sep 2019, 09:28
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 490
Views: 33062

Re: Prelude conversion project - some questions

we tried a resistor between Prox and Gnd and it make no difference with... Was that with the AVC2 still connected? I was just talking to Jeff Owen about this. He tells me that the AVC2 has the 2.7 kΩ resistor already in place, but also puts the 1.3 kΩ resistor across that after a short delay. That'...
by coulomb
Thu, 12 Sep 2019, 20:27
Forum: Renewable Energy and Storage (Non-EV)
Topic: Tesla PW2
Replies: 34
Views: 2816

Re: Tesla PW2

So I assume when the solar panels are not generating any electricity would the bus drop until the mains start feeding back in? If nothing else happened other than the PV power ramping to zero, the bus voltage would slowly bleed down, and when it got to about a volt higher than the peak of the Ac ma...
by coulomb
Thu, 12 Sep 2019, 20:12
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2460
Views: 473283

Re: Modified PIP-4048MS and PIP-5048MS firmware with Dynamic Charge Current Control

I would need to send a MNCHGC0### command at least once a minute (otherwise it will stop charging)? Yes. It will behave as if an MNCHGC0500 command has been sent, setting the current limit to zero, except that the clock icon will appear next to the flashing dot. There will be no relay clicks or EEP...
by coulomb
Thu, 12 Sep 2019, 08:58
Forum: Renewable Energy and Storage (Non-EV)
Topic: Tesla PW2
Replies: 34
Views: 2816

Re: Tesla PW2

What is the bus voltage to where the solar panels feed to? I'm only familiar with the Voltronic Power inverter-chargers. There are two different Solar Charge Controllers (SCCs) that come with these. In the PIP-5048MS and similar, there is a buck converter that takes the 60-130 V panel voltage and b...
by coulomb
Mon, 09 Sep 2019, 15:17
Forum: Charging Infrastructure
Topic: Making a conversion J1772 / IEC 62196 capable
Replies: 13
Views: 2241

Re: Making a conversion J1772 / IEC 62196 capable

I wonder if the AVC2 is a bit too simple for the average charge point? Surely the whole idea is to be completely compatible. Maybe it's timing of one of the resistor changes, so the AVC2 should work with most EVSEs that aren't too picky. Jeff Owen has posted about some EVSEs needing proper timing, ...
by coulomb
Mon, 09 Sep 2019, 15:03
Forum: Hyundai
Topic: Kona Charging at Fast Chargers
Replies: 20
Views: 776

Re: Kona Charging at Fast Chargers

"Upside down, Miss Jane." Heh, I'm old enough to understand that reference :o Actually, if you use View Image in Firefox or Open Image in New Tab in Chrome, it comes out right. So either both browsers are ignoring the rotation settings in the image, or there is a bug with PHPBB rendering the page (...
by coulomb
Mon, 09 Sep 2019, 12:04
Forum: Renault
Topic: Route Planning
Replies: 5
Views: 234

Re: Route Planning

doggy wrote:
Mon, 09 Sep 2019, 10:09
... and Tesla DC.
I was wondering for a while what amazing adapter there must be to adapt a Tesla Direct Current supercharger to a Zoe.

Then I realised that DC also stands for Destination Charger :oops:
by coulomb
Sun, 08 Sep 2019, 07:20
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10196

Re: PIP-4048MS and PIP-5048MS inverters

I already guessed it would be no quick fix and ordered a new unit... Something that I should have thought of yesterday, but only occurred to me as I watched your video, is that perhaps the battery (or one cell of the battery) has collapsed. Can you check the battery voltage, first with no load, the...