PIP-4048MS and PIP-5048MS inverters

non-EV Solar, Wind and other renewable power sources
non-EV batteries and other energy storage stuff
Forum rules
Important!
This forum is for discussion of Non-EV matters.
gbeppe
Noobie
Posts: 4
Joined: Tue, 11 Sep 2018, 02:11
Real Name: Giuseppe Grillo

Re: PIP-4048MS inverter

Post by gbeppe » Mon, 17 Sep 2018, 15:53

Opss ... Coulomb, is an error, the exact command is PCP. However now everything is fine, I had made a mistake on re-reading EPROM. Thanks all right. I wanted to send you a screenshot of the main page, but I have no idea how to do it ...

bubla
Noobie
Posts: 3
Joined: Wed, 12 Sep 2018, 19:36
Real Name: bubla

Re: PIP-4048MS inverter

Post by bubla » Wed, 19 Sep 2018, 06:40

Hello Coulomb and Weber,
I'm sending more details about 2424MSXE. Photo of the production label does not allow me to upload here.
Version 3024MSXE is a new manufacturer's label. I think it should probably be the same with 2424MSXE.

PF1

QVFW: VERFW: 00014.23
QVFW2: VERFW2: 00000.00
QPIRI:
230.0 - Grid rating voltage (V)
13.0 - Grid rating current (A)
230.0 - AC output rating voltage (V)
50.0 - AC output rating frequency (Hz)
13.0 - AC output rating current (A)
3000 - AC power rating apparent power (VA)
2400 - AC power rating active power (W)
24.0 - Battery rating voltage (V)
24.0 - Battery re-charge voltage (V)
24.0 - Battery under voltage (V)
27.8 - Battery bulk voltage (V)
26.8 - Battery float voltage (V)
2 - Battery type (0: AGM, 1: Flooded, 2: User)
20 - Current max AC charging current (A)
050 - Current max charge current (A)
1 - Input voltage range (0: Appliance, 1: UPS)
2 - Output source priority (0: Utility first, 1: Solar first, 2: SBU first)
3 - Charger source priority (0: Utility first, 1: Solar first, 2: Solar + Utility, 3: Only solar charging allowed)
1 - Parallel max num
01 - Machine type (00: Grid tie, 01: Off Grid, 10: Hybrid)
0 - Topology (0: Transformerless, 1: Transformer)
0 - Output mode (00: single machine output, 01: parallel output)
25.5 - Battery re-discharge voltage (V)
0 - PV OK condition for parallel
1 - PV power balance

Inverter Mode:
Rated Power: 3000VA/2400W
DC Input: 24VDC, 100A
AC Output: 230VAC, 50/60Hz, 13A, 1

AC Charger Mode:
AC Input: 230VAC, 50/60Hz, 20.8A, 1
DC Output: 27VDC,
Max.60A, Default 30A
AC Output: 230VAC, 50/60Hz, 13A, 1

Solar Charger Mode:
Rated Power: 1500W
System Voltage: 24VDC
Operating Voltage Range: 30-115Vdc
Max. SOlar Voltage (VOC): 145VDC

Do you happen to know if there is a command to manually start the equalization?
Menu 36
Even if the inverter is in float, after the manual equalization is turned on, the batteries are recharged. I would set the charging voltage and the low time to avoid overcharging the battery. And the script was triggered in the case of a weak battery.
this option would help me before solving the float problem

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by weber » Wed, 19 Sep 2018, 14:42

Gnome wrote:
Sat, 14 Jul 2018, 22:38
Hey all

Anyone tried the new Axpert VMIII or Axpert King?

I don't expect any problems with it doing what it claims. However I'm curious if the existing communication protocol still works with the newer models.

Apologies if this has been answered before, the thread is quite epic in length.
Definitely not answered before. But at least I can now translate this question into a form that Aussie readers may understand. ;)

Anyone tried the new PIP-GK or PIP-MK? Does the the existing communication protocol still work with these models?

They both have a removable display. The GK has a 500 V MPPT while the MK has the safer 145 V MPPT.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

User avatar
coulomb
Site Admin
Posts: 3759
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Thu, 20 Sep 2018, 10:13

Gnome wrote:
Sat, 14 Jul 2018, 22:38

Anyone tried the new Axpert VMIII or Axpert King?

However I'm curious if the existing communication protocol still works with the newer models.
Sorry for the late reply. I am able to read a firmware for the Axpert VM III, and can confirm that the usual commands all seem to be there. A few commands are present in the table of commands, but not implemented; these are likely to do with current sharing and the like, which doesn't apply to the Value/Economy models (they have no paralleling ability). This suggests that the Value/Economy and ordinary models do/will share the same source code, and the former will implement essentially a subset of the latter's commands.

There are several commands I don't recognise, such as QBEQI and PBEQA, which I think may be Query Battery EQualise Inquiry and Program Battery EQualisation Active respectively. [ Edit: the latter is most likely Activate, as in equalise now. ]

My guess is that the Axpert King (PIP-MK) models will eventually replace the Axpert MKS (PIP-MS) models having the same power and voltage, although MPP Solar doesn't sell or even mention the 5 kVA PIP-MK as yet. So I'd guess that the King will retain the usual commands that present monitoring software uses, and will likely add a few new ones for battery equalisation and the like. But again, it's just a guess.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by weber » Thu, 20 Sep 2018, 11:09

coulomb wrote:
Thu, 20 Sep 2018, 10:13
There are several commands I don't recognise, such as QBEQI and PBEQA, which I think may be Query Battery EQualise Inquiry and Program Battery EQualisation Active respectively. But that's just a guess.
Why guess when you can google it? See download/file.php?mode=view&id=642, now linked from this thread's index page.

Are you sure there's a PBEQA command? The above manual lists 6 commands that begin with PBEQ, but none of them are PBEQA.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

User avatar
coulomb
Site Admin
Posts: 3759
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Fri, 21 Sep 2018, 18:26

weber wrote:
Thu, 20 Sep 2018, 11:09
Why guess when you can google it?
Wow. Well found.
Are you sure there's a PBEQA command? The above manual lists 6 commands that begin with PBEQ, but none of them are PBEQA.
Yes. There is a slight mismatch between the documentation you found and VM III firmware version 25.90. But it's still very valuable for my work; thanks for finding it.

There are commands to set the equalisation interval, in days. So this seems to finally be real, automatic equalisation for lead acid batteries. Just when they are being replaced by lithium. But I'm sure there will be lead acid installations for many years.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

paulvk
Groupie
Posts: 188
Joined: Fri, 23 Oct 2015, 23:45
Real Name: Paul
Location: Sydney

Re: PIP-4048MS inverter

Post by paulvk » Sun, 23 Sep 2018, 15:57

Seems like they have implemented most of the recommendations I sent them , just need plug in connections for the battery and AC so replacement of units is not a major task.
Note if you send recommendations to them make certain it comes with hard data eg flooded lead acid needing 62V for equalization as per Trojan specs.
I think lead acid will be around for a long time, lead is not that rare and its got a very good record of being re-cycled so although its toxic it stays in batteries.

6mdx
Groupie
Posts: 39
Joined: Tue, 23 May 2017, 21:17
Real Name: Robert Black
Location: Lismore

Re: PIP-5048MS inverter

Post by 6mdx » Sat, 06 Oct 2018, 04:33

Hi all, what setting controls the 04 low battery warning. My 5048ms is triggering at 49.5 v , which is not low for my 15s lfp batteries.

TIA Robert

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

Re: PIP-5048MS inverter

Post by weber » Sat, 06 Oct 2018, 07:02

6mdx wrote:
Sat, 06 Oct 2018, 04:33
Hi all, what setting controls the 04 low battery warning. My 5048ms is triggering at 49.5 v , which is not low for my 15s lfp batteries.

TIA Robert
Hi Robert. The low battery warning thresholds depend on the Low Cutoff Voltage (setting 29). In the standard firmware, a low battery warning is given after the battery voltage falls below cutoff+2 V and stops after the battery voltage goes above cutoff+4 V. When we modify the firmware for LFP batteries, we change these to cutoff+0.5 V and cutoff+1 V.

I am pleased to announce that Coulomb and I are making good progress in porting our patches to the PIP-5048MS (Axpert MKS 5K pf1 with 64V option) because forum contributor Monkeytom has loaned us two of them for testing. Thanks Tom!
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

6mdx
Groupie
Posts: 39
Joined: Tue, 23 May 2017, 21:17
Real Name: Robert Black
Location: Lismore

Re: PIP-5048MS inverter

Post by 6mdx » Sat, 06 Oct 2018, 10:14

weber wrote:
Sat, 06 Oct 2018, 07:02
6mdx wrote:
Sat, 06 Oct 2018, 04:33
Hi Robert. The low battery warning thresholds depend on the Low Cutoff Voltage (setting 29). In the standard firmware, a low battery warning is given after the battery voltage falls below cutoff+2 V and stops after the battery voltage goes above cutoff+4 V. When we modify the firmware for LFP batteries, we change these to cutoff+0.5 V and cutoff+1 V.

I am pleased to announce that we are making good progress in porting our patches to the PIP-5048MS (Axpert MKS 5K pf1 with 64V option) because forum contributor MonkeyTom has loaned us two of them for testing. Thanks Tom!
Hi Weber, thanks for the info. My two 5048ms turned up the day after Toms. I still havent seen the parallel boards.

Great that you two are making progress. It pretty exciting porting all your previous efforts to the new generation inverters.
Cheers Robert

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

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

Post by weber » Wed, 10 Oct 2018, 16:38

Release Version of Patched Firmware 72.20c for some PF1 models with the 64V option


[Edit3: This has been superceded. Please see the Firmware section of the first post of this topic to find the latest patched firmware for your machine.]
[Edit1: On 12-Oct-2018 we replaced beta 72.20b here, with beta 72.20c that has a new load-control or go-to-standby command.]
[Edit2: On 11-Nov-2018 we replaced beta 72.20c here, with release 72.20c. The only change was the first letter of the version number (from B to L).]

This patched firmware fixes the premature-float bugs in the manufacturer's firmware for the PIP-5048MS, Axpert MKS 5K-48 (PF1 with 64V option) and equivalents. i.e. machines supplied with main firmware version 72.xx where xx ≤ 30. It also contains our Dynamic Current and Load Control (DCLC) and AussieView™ additions, and we have provided a version with our voltage and current threshold changes for LFP cells. i.e. It has the same functionality as 73.00c (PF0.8) except that in the LFP version, the minimum tail current to go from absorb to float has now been reduced from 5 A per machine to 3 A per machine.

Finally, 72.20c also has Dynamic Load Control (DLC). This allows you to send a serial command (MNCHGC0497) to force a machine into standby mode, reducing its power consumption (in our test with 2 parallel machines, from around 60 W to 11 W per machine). This is similar to turning off the bottom switch, except the processor keeps running so it can accept other commands, such as MNCHGC0498 to return it to normal operation. With no PV or AC input, turning off the bottom switch still powers everything down after about 20 seconds, including the processor. The zero in these commands can be replaced with other machine numbers in a parallel system.

Thanks go to forum contributors and friends @6mdx and @Monkeytom for the loan of two PIP-5048MS inverters for testing. Also the anonymous benefactor who sent us the firmware update file. You know who you are. Many thanks to you all.

Here are the zip files with all the software you need, to reflash your PIP-5048MS or Axpert MKS 5K-48 (PF1 with 64 V option), and to revert to factory 72.20 firmware if required.


Note: This firmware is only suitable for the 48 V models with a single low-voltage MPPT and a power factor of 1 (5kW/5kVA) and the 64 V maximum battery voltage option, except for the Axpert King or PIP-5048MK. It is not suitable for the older models with a PF0.8 rating (4 kW/5 kVA), and not PF1 models without the optional 64 V hardware, and not models with a maximum PV array open circuit voltage greater than 145 V DC. Parallel or phased machines must all run the same patched firmware version.

WARNING!!

Flashing this firmware to an incompatible machine will almost certainly render it useless.
Permanently. Not suitable for Axpert King or PIP-5048MK.

For lithium ferrous phosphate (LFP) (16S or 15S)
dsp_LF1_72.20c pf1 64V.zip
(1.93 MiB) Downloaded 69 times

For lead acid (24S), lithium cobalt-blends (LCO, NMC, NCM, NCA) (14S) and lithium titanate (LTO) (21S)
dsp_LC1_72.20c pf1 64V.zip
(1.93 MiB) Downloaded 95 times

See these reflashing instructions but ignore the zip files there.

It should go without saying that you use this at your own risk.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

dinu_tiberiu_george
Noobie
Posts: 7
Joined: Sun, 08 Oct 2017, 01:11
Real Name: Dinu Tiberiu George

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

Post by dinu_tiberiu_george » Wed, 10 Oct 2018, 21:10

For 5048MS PF1 not 64v model do you have any patch?
Is there any way to pass beyond the 58.4 v bulk/absorb voltage? I see in the manual the cut-off voltage of 60v. Is there any risk if I charge the battery with an external charger, at let say 59.5 v?

6mdx
Groupie
Posts: 39
Joined: Tue, 23 May 2017, 21:17
Real Name: Robert Black
Location: Lismore

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

Post by 6mdx » Thu, 11 Oct 2018, 03:20

Hello weber and coulomb, thanks for your efforts on the new Beta Version of Patched Firmware 72.20b for PF1 models with the 64V option.

Good fast work. I will try it today.

Did you get the parallel boards from Tom? If not mine have arrived.

Cheers Robert

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

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

Post by weber » Thu, 11 Oct 2018, 06:10

dinu_tiberiu_george wrote:
Wed, 10 Oct 2018, 21:10
For 5048MS PF1 not 64v model do you have any patch?
Is there any way to pass beyond the 58.4 v bulk/absorb voltage? I see in the manual the cut-off voltage of 60v. Is there any risk if I charge the battery with an external charger, at let say 59.5 v?
Hi Dinu. We don't know. Any time spent at a higher than usual battery voltage will tend to age the capacitors more rapidly and increase the risk of MOSFET failure. Short periods above 58.4 V but below 60 V should be OK.

I assume this is for equalisation of lead acid cells approximately once a month. If so, it would be best if you could disconnect the PIP-5048MS while the external charger is in use.

It is possible that the 73.00c/d/e (pf0.8) firmware might work on a PF1 not-64 V model, but it may limit power to 4 kW. We have not tried this and do not know whether it might have other bad side-effects that will destroy the inverter.
It is possible that the 72.20c/d/e (64 V) firmware might work on a PF1 not-64 V model, but it will probably not protect the inverter against excursions to high battery voltages, and you should be very wary of using any setting above 58.4 V, and certainly not above 60 V. We have not tried this and do not know whether it might have other bad side-effects that will destroy the inverter.

I thought that all PIP-5048MS from MPP Solar came with the 64 V option. If so, the label on the side should say "Model: PIP 5048MS(64V)". Also, the 64V models have main firmware versions 72.xx where xx ≤ 30, while the not-64 V models have main firmware versions 74.xx.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

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

Post by weber » Thu, 11 Oct 2018, 06:30

6mdx wrote:
Thu, 11 Oct 2018, 03:20
Hello weber and coulomb, thanks for your efforts on the new Beta Version of Patched Firmware 72.20b for PF1 models with the 64V option.

Good fast work. I will try it today.

Did you get the parallel boards from Tom? If not mine have arrived.

Cheers Robert
Thanks Robert. We transferred the parallel boards from my 4048s. We would not have posted the firmware as beta without testing parallel operation. As it was, we found a bug when we did so, but we eventually tracked it down and fixed it.

I have belatedly added an acknowledgement of your contribution, to the firmware post above, after I was reminded that it was you who first proposed to loan us a PIP-5048MS so we could test our patches. And it was you who got Monkeytom involved, when his inverters arrived before yours. Thanks for that. And thanks for your upcoming beta testing.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

6mdx
Groupie
Posts: 39
Joined: Tue, 23 May 2017, 21:17
Real Name: Robert Black
Location: Lismore

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

Post by 6mdx » Thu, 11 Oct 2018, 06:51

Hey weber , glad it all worked out. I installed the new lfp patch this morning on single inverter. The second inverter is still in its box. All seems to be working, if only I had some sun.

Love Aussieveiw. Thanks
Robert

6mdx
Groupie
Posts: 39
Joined: Tue, 23 May 2017, 21:17
Real Name: Robert Black
Location: Lismore

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

Post by 6mdx » Thu, 11 Oct 2018, 08:05

Now that I have moved from PWM 5048 to MPPT 5048, I have a new dilemma.
My 60 cell panel have open circuit voltage of 37.
2S is the current configuration open circuit is 74 V, but under load this is 55 to 62 volt.

5048 MPPT range is 60 to 115V, with max PV of 145V.
Today with heavey cloud the PV voltage is around 55V. And very little current

Should I suck it up and reconfigure to 3S?
Will it make a worthwhile difference.

Ps my panels are all earthed as per standard.

TIA
Robert.
Last edited by 6mdx on Fri, 12 Oct 2018, 04:31, edited 1 time in total.

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

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

Post by weber » Thu, 11 Oct 2018, 13:04

To answer that, I need to know: Are you using 16S or 15S LFP? What make and model are your panels? I already know your approximate location and therefore your temperature regime.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

paulvk
Groupie
Posts: 188
Joined: Fri, 23 Oct 2015, 23:45
Real Name: Paul
Location: Sydney

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

Post by paulvk » Thu, 11 Oct 2018, 18:45

I have all my panels as strings of three tested at two's it worked but only with good sun little cloud
went to strings of three my max voltage has been 119v and it works much better with cloud

User avatar
coulomb
Site Admin
Posts: 3759
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

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

Post by coulomb » Thu, 11 Oct 2018, 21:31

paulvk wrote:
Thu, 11 Oct 2018, 18:45
I have all my panels as strings of three
I assume that means that each of your strings is three panels of 60 cells each?

Usually the panels with output around 250 W have 60 cells. Panels around 200 W and those around 300+ W usually contain 72 cells; the 200 W panels use the smaller 125 mm cells. A few panels have had 54 of the larger sized cells, they seem to be rare now. They were ideal for 3S (strings of three panels in series).

Strings of three panels with 72 cells (either size) are more likely to have cold morning voltages that are too high for the PIP/Axpert Solar Charge Controller.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

6mdx
Groupie
Posts: 39
Joined: Tue, 23 May 2017, 21:17
Real Name: Robert Black
Location: Lismore

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

Post by 6mdx » Fri, 12 Oct 2018, 04:49

weber wrote:
Thu, 11 Oct 2018, 13:04
To answer that, I need to know: Are you using 16S or 15S LFP? What make and model are your panels? I already know your approximate location and therefore your temperature regime.
Weber, my batteries are 15S.
The panels are REC 250 watt.
I would have to get out of bed to find the model number...... lol

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

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

Post by weber » Fri, 12 Oct 2018, 12:23

6mdx wrote:
Fri, 12 Oct 2018, 04:49
weber wrote:
Thu, 11 Oct 2018, 13:04
To answer that, I need to know: Are you using 16S or 15S LFP? What make and model are your panels? I already know your approximate location and therefore your temperature regime.
Weber, my batteries are 15S.
The panels are REC 250 watt.
I would have to get out of bed to find the model number...... lol
3S of these 60 cell panels would certainly stay within the SCC's open circuit voltage spec of 145 V, and would give the best energy yield. 3S will stay under the legal open circuit voltage limit of 120 V if the operating temperature of your panels never goes below 0 °C (dawn in mid-winter). Given that you're using the lower battery voltage afforded by 15S LFP (say 51.8 V absorb, 50.4 V float), energy yield from 2S would probably not be very much less than from 3S. You would lose out on still hot days. It won't achieve max power in absorb if the PV cells go over 54 °C and it wont maintain float at max power if they go over 60 °C.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

User avatar
coulomb
Site Admin
Posts: 3759
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

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

Post by coulomb » Fri, 12 Oct 2018, 19:10

Dynamic Load Control

A new patched firmware feature has been added, called Dynamic Load Control. This allows a serial command to force a machine into standby mode. This is similar to turning off the bottom switch. However, the processor keeps running, so another command can be sent to turn it back on, or do anything else. The fans are still running, but the power in standby mode is around 11 W, compared with around 60 W for a machine with a parallel card and operating in paralleled mode. So that's a nice saving.

When machines are paralleled, one or more or all machines can separately be forced into standby mode, or back to normal operation. Of course if all machines are put in standby, the loads will not be powered, but this might be exactly what is needed if your BMS detects a lithium cell going undervoltage.

With suitable monitoring software, this could be used to keep wasted power low when demand is low, yet have the power of two or more machines available when needed. It's kind of cool pressing buttons on a phone and having an inverter go click and change its display :geek:

This feature has been incorporated into patched firmware version 72.20c for PIP-5048 or Axpert 5K-48 (PF1) models with the 64 V option.

The Dynamic Current and Load Control Manual has the details.

This feature will hopefully eventually find its way into a new version of the patched firmware 73.00c, for PF0.8 5 kVA models.
Nissan Leaf 2012 with new battery May 2019.
5650 W solar, 2xPIP-4048MS inverters, 16 kWh battery.
1.4 kW solar with 1.2 kW Latronics inverter and FIT.
160 W solar, 2.5 kWh 24 V battery for lights.
Patching PIP-4048/5048 inverter-chargers.

User avatar
weber
Site Admin
Posts: 2618
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

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

Post by weber » Sat, 13 Oct 2018, 16:27

@Vissie and @coulomb, your recent posts about Voltronic InfiniSolar Inverters have been moved to the Voltronic InfiniSolar Inverters thread.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

djonexx
Noobie
Posts: 3
Joined: Sat, 25 Aug 2018, 13:48
Real Name: Ionut N

Re: LG Chem Resu 10 with PIP-4048MS

Post by djonexx » Sat, 13 Oct 2018, 19:22

So as promised I am back with details on LG Ghem Resu 10 working togheter with the PIP 4048 MS.

First a few notes about the LG Chem RESU 10 - it requires CAN communication with a compatible inverter. Some guys here have reverse engineered the communication protocol and with a few dollars of hardware and many hours of tinkering around I got it working. For the communication module I used an Arduino Nano with a MCP2515 CAN bus module. The data is then stored on the Arduino and read from my Raspberry PI that monitors the inverters. The battery also requires to periodically receive a keep-alive frame on the CAN bus or it will shutdown itself in about 10 minutes.

The parameters I'm using are:

[05] Battery Type: USE
[12] Battery To Utility Voltage: 50 V
[13] Utility To Battery Voltage: 51 V
[26] Bulk Voltage: 57.0 V
[27] Float Voltage: 57.0 V
[29] Cut-off Voltage: 49 V
[32] Bulk Charging Time: 60 minutes

The LG's BMS reports the limits of 57.7 V for the charging voltage, and around 90-99A for the max charging current. For now I'm happy with the slightly lower limit of 57.0 V and that charges the battery to about 95%, and I plan to implement the current limiting with the "Dynamic Current Control" feature just to make sure.

I am also a bit unconfortable about the cutoff voltage so I set the B2U voltage higher. The three inverters eat up about 150 W from the battery even in Utility mode when the charger is set to Solar Only, and that adds up quickly to about 1.8 KWh in 12 hours. So about 20% of the 9.8KWh nominal battery capacity must be reserved for this, or it will trip itself if gets too discharged.

Post Reply