Search found 3137 matches

by coulomb
Yesterday, 19:34
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

Can the ICC software manage my PIPs for charging the Pylontech batteries using the modified firmware, or should i make my own scripts to manage the charging. I believe that ICC can or soon might be interfacing directly to the Pylontech CAN or RS232 bus. Check this thread on the PowerForum (I didn't...
by coulomb
Yesterday, 19:09
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

My PIP4048 shows on the LCD error 57 It seems that there is a test at startup to check for DC offsets in any of these: * The current transformer measuring load current * The hall effect sensor measuring inverter output current * The current sharing sensor, presumably only if your machine is paralle...
by coulomb
Yesterday, 10:12
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

For now (4 days) they seem to do their job but it is obvious they are a poor match to the pylontech battery bank. I use the voltages for charging (bulk/float) that I found in some victron documentation for interfacing with my bateries: 53.2V bulk charge and 53.0v floating. Those are a bit high. See...
by coulomb
Tue, 12 Jun 2018, 22:49
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

The PIPs certainly can't handle 18S. It would have been great for DIYers if each Tesla battery module was 7S instead of 6S, a much more standard 24ish volts.
by coulomb
Tue, 12 Jun 2018, 08:56
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 53
Views: 1803

Re: Prelude conversion project - some questions

Sorry I meant putting a resistor across the contactors of the AC and DC/DC converter, while leaving the master contactor as is. Oh, of course. That resolves the main problem, hazardous voltage about the vehicle 24/7. It means that the DC-DC and Air Conditioner inverter will see power all the time w...
by coulomb
Tue, 12 Jun 2018, 07:13
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 53
Views: 1803

Re: Prelude conversion project - some questions

But then there is hazardous voltage in the vehicle 24/7, and the DC-DC might try to use the energy, possibly hiccuping.
by coulomb
Mon, 11 Jun 2018, 21:34
Forum: Technical and conversion discussion
Topic: Prelude conversion project - some questions
Replies: 53
Views: 1803

Re: Prelude conversion project - some questions

Legit in my opinion. So you'll still need a small pre-charge circuit.
by coulomb
Mon, 11 Jun 2018, 07:51
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

It's not obvious that you can drive full power from such a low voltage. Further thoughts on that. In battery mode, the "bus" voltage (which the inverter runs from) is about 8x the battery voltage (less some voltage drops), because the high frequency transformer seems to have a turns ratio of 1:8. T...
by coulomb
Mon, 11 Jun 2018, 07:14
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

I just mounted a PIP4048MS 0.8 (2018) whit two series Tesla Model S modules. Ah. My understanding is that Tesla modules are 6S of a 3.75 V (nominal) chemistry. So two modules in series is 12S. The inverters and therefore our patched firmware works best with 16S or 15S LFP, 24S lead acid, or 14S of ...
by coulomb
Tue, 05 Jun 2018, 06:50
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

... my setup will have 27 panels , 9 orietantion east, 9 west and 9 south and will share the same battery. Hopefully you live in the northern hemisphere, or your south facing panels will see a lot of shade :| PIPs in parallel / 3-phase are required to share the same battery. - in a 3 phase system i...
by coulomb
Fri, 01 Jun 2018, 18:10
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 335
Views: 13592

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Ah, now this is the confusion, there are two units available, one is 3550 Wh, and the other is 7100 Wh, and I think it's the 7100 Wh which has the 1,200 devices, and its dimensions are as follows (per Arvio's Brichure page 5) Dimensions (w x d x h) 600mm x 490mm x 330mm The title of the tread is 3....
by coulomb
Fri, 01 Jun 2018, 17:55
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 335
Views: 13592

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

MicrotronTec claims to manufacture the graphene supercaps in China. MicrotronTec says: http://microtrontec.com/technologies.php Graphene-Based Ultracaps Unlike conventional ultracaps using Activated Carbon, Microtron’s storage cells use graphene. The higher surface area of graphene allows Microtron...
by coulomb
Mon, 28 May 2018, 12:38
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 335
Views: 13592

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

Thank you Coulomb. Glad to keep things civilised. And in Coulomb's retort I again see a lot of similar inconsistencies. Plus a whole lot of coulds, maybes, perhaps's and mights. In my last post, I counted zero "could"s, zero "maybe"s, 2 "perhaps" (speculating about the extra electronics that Superc...
by coulomb
Mon, 28 May 2018, 09:33
Forum: Batteries, charging, management and monitoring
Topic: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale
Replies: 335
Views: 13592

Re: Arvio 3.5kWh drop-in-battery-replacement supercapacitor on sale

There are too many inconsistencies with the alternative hypothesis, that these are just LTO batteries. Sigh. That sounds like the "smoking controversy" that the tobacco industry used for many years. For example: Weber (p1) " ... These are "LiPo" drone batteries. Lithium-cobalt-oxide pouch cells. .....
by coulomb
Mon, 28 May 2018, 08:07
Forum: Charging Infrastructure
Topic: Tritium chademo at murrarie
Replies: 4
Views: 136

Re: Tritium chademo at murrarie

lesmando wrote:
Mon, 28 May 2018, 06:03
I have deleted it soo many times, but it keeps coming back.
Maybe you need to leave it there, but marked as faulty or unavailable, perhaps with a note that it's a test unit, and please don't change this status unless Tritium really have a change of policy on that unit.
by coulomb
Sat, 26 May 2018, 07:22
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

While typing this I wonder if this problem could be I had the slave highlighted in watchpower. That does seem to be the most likely explanation. 2 weeks ago I connected another 3kw of panels ... is the charge light would illuminate the[n] switch off, then back on etc. Charging while a master takes ...
by coulomb
Thu, 24 May 2018, 09:08
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

is there any way to change the min.solar voltage from 40 vdc to 55 vdc? There are only half a dozen commands that the main processor sends to the SCC, and none of them affect the minimum PV voltage, at least not directly. So you'd have to patch the SCC code. Possible, but a lot of work. Why do you ...
by coulomb
Mon, 21 May 2018, 21:10
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

data wrote:
Mon, 21 May 2018, 20:58
We have a couple of 2424MSD here. Reason for swapping out the serial board is, that it is crap.
Oh. My misunderstanding then. Sorry.

I thought you could get the serial boards, and other spares, from MPPSolar.
by coulomb
Mon, 21 May 2018, 20:04
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

where can I order a serial/RS232 module for the inverter? We mention Jaycar for the serial to RS-232 board. However, see below. Mine has the USB-only board... Ah. As far as I know, no models that have the USB-only board can use the firmware (factory or patched) found on this site. I don't understan...
by coulomb
Fri, 18 May 2018, 19:47
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

any idea how can i stop this ? or, where to start ? If you have the ability to inject commands to the PIP, and since you are using patched firmware, I'd try this pair of commands: MNCHGC0500 <CRC><CR> MNCHGC0499 <CRC><CR> This sets the dynamic charge current to zero, then sets it back to the EEPROM...
by coulomb
Fri, 18 May 2018, 17:10
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

Hi , and thank you again for all the help , I have disconnected the panels , but the problem remains, Ok. So that seems to rule out leakage across your PV switch. and in bypass mode and what i have observed is that i have 1 amp drain from batteries no matter what( reported by the inverter himself ,...
by coulomb
Fri, 18 May 2018, 06:33
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

And measured with a multimeter , even with the pv switch off , i have that 46v there , By "there", do you mean at the PV input terminals? Is it possible that this is leakage across your PV switch? For example, can you ever see this 46 V at night? so , somehow is taking dc current from another place...
by coulomb
Thu, 17 May 2018, 07:10
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

Yes, I have a Pip4048ms .... the problem remains even when the battery is removed. the relays seem to work well in the mppt card but not released under the 60v photovoltaic input Hi , did you solve the problem? I have the same issue , He worked great , until now .Thank you ! If you mean that the re...
by coulomb
Fri, 11 May 2018, 21:24
Forum: The Lounge
Topic: PIP-4048MS inverter
Replies: 2233
Views: 229878

Re: PIP-4048MS inverter

When you say it uses the battery current at a certain voltage, do you mean when the inverter is on it can guess the SOC because of the voltage at that load? No, it's all based on total battery current. What happens when the inverter isn't on, what current is it using then? Sorry, I forgot to mentio...