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.
mohfamous
Noobie
Posts: 7
Joined: Fri, 06 Apr 2018, 00:17
Real Name: Mohammed Almashharawi

Re: PIP-4048MS inverter

Post by mohfamous » Thu, 12 Apr 2018, 00:01

I have 5000VA
I want to know what are this SMD code mean
L44 ( 3 pin)
L4 (3 pin )
W1p (3 pin)
WA (3 pin)

thanks all for your help

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Thu, 12 Apr 2018, 09:09

mohfamous wrote:
Thu, 12 Apr 2018, 00:01
I want to know what are this SMD code mean
L44 ( 3 pin)
L4 (3 pin )
I usually use S-manuals.com, e.g. these first two can be found on the page starting with L4, leading to datasheets like this one. I have some of these marked on my partial schematics, e.g. D8 near the upper right of the IGBT driver partial schematic trace has "L4" amongst its labels.

There are a few other SMD code sites; Google "marking code". These two are low-power schottky diodes, usually called BAT54S (series pair) and BAT54 (single) for L44 and L4 respectively. You can get these at the usual suspects (element14, Mouser, Digi-Key, and so on.
W1p (3 pin)
Some of them can be tricky. For example, it might be that the marking code is W1, and "p" indicates the manufacturing site. The closest I can find is a 2.4 V zener, but this seems very unlikely. What designator (e.g. ZD7) does it have? "W1p" sounds familiar from one of the battery-side or high-side MOSFET drivers; perhaps a transistor with a Qn designator, where n is a number like 7 or 31.
WA (3 pin)
Per the S-manuals site, this could be a 5.6 V zener diode, like ZD7 in the IGBT schematic linked above (we found a part with marking code BC there; marking codes sometimes vary from manufacturer to manufacturer, and sometimes there is commonality).

[ Edit: swapped BAT54 and BAT54S, added "for L44 and L4 respectively" ]
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

Luis
Noobie
Posts: 3
Joined: Fri, 13 Apr 2018, 02:02
Real Name: Luis Perez

Re: PIP-4048MS inverter

Post by Luis » Fri, 13 Apr 2018, 17:23

Hello @Coulomb and @Weber,

First let me thank you for such service you make to the community, your skills are scarce and disappearing with time.

Would you be able to release a Firmware version for 73c which allows higher voltage charging to 64 VDC? the Axpert High voltage version comes equipped to that voltage level. I read at the notes of Ausieview for this release that it only allows to set battery to 58 but the minimum required for Lithium will be 61 VDC.

Thanks again for your help!

coulomb wrote:
Mon, 12 Feb 2018, 14:56
Release Version of Patched Firmware 73.00b

[Edit: This post was originally for the beta version of 73.00a, but after being in use for 6 weeks, and being downloaded 38 times for LFP and 55 times for other chemistries, we updated the zip files to "release" status. Then a few days later we learned about a problem where 73.00 (both original and patched) would stop working after 60 days (with fault code 90) when run on older hardware. 73.00b fixes that problem. It was a one-word change, so we didn't bother with a beta.]

Weber and I have finally finished testing our patched firmware based on factory firmware version 73.00. Hardware that comes with factory firmware 73.00 has a neutral to earth relay, which is active only when the inverter is in battery mode. 73.00 also modifies the behaviour of the fans, spinning the fans even at no load, and more vigorously during heavy solar charging. There may be other improvements as well. 73.00 is parallel compatible with some older firmwares: 52.30, 72.40, and 72.6X, but not 72.70.

This patched firmware has all the same patches as 72.70c and earlier patched firmwares, including Dynamic Current Control and AussieView™. Naturally, this includes fixing the infamous premature float bugs.

As before, there is an LFP (Lithium Ferrous Phosphate) version, and the "all other chemistries" version (LC for Lead aCid, Lithium Cobalt blends, and lithium titanate).


Note: This firmware is only suitable for the 48 V models with a single low-voltage MPPT and a power factor of 0.8 (4 kW / 5 kVA), not those with dual or triple MPPTs or a power factor of 1.0 (5 kW / 5 kVA), and not those with a maximum PV array open circuit voltage greater than 145 V DC.

For lithium ferrous phosphate (LFP) (16S or 15S)
dsp_LF1_73.00b.zip


For lead acid (24S), lithium cobalt-blends (LCO, NMC, NCM, NCA) (14S), and lithium titanate (LTO) (21S)
dsp_LC1_73.00b.zip


Note: Lithium ferrous phosphate (LFP) is the same as lithium iron phosphate or LiFePO₄. The name "lithium ferrous phosphate" is preferred, as it avoids the confusion between "iron" and "ion".

For details on reflashing, and what hardware this firmware will and won't run on, see the 72.70b reflashing instructions, but ignore the files there.

[ Edit: Links to text files for DCC and AussieView™ ]

Luis
Noobie
Posts: 3
Joined: Fri, 13 Apr 2018, 02:02
Real Name: Luis Perez

Re: PIP-4048MS inverter

Post by Luis » Fri, 13 Apr 2018, 18:20

Hello @coulomb @weber

Thank you so much for the fantastic job you have done improving the functionalities of the inverters.

I have looked at Firmware 73.C but noticed at the noted the maximum voltage is 48VDC bus (58 max charge) if this is intended for Lithium Ion batteries some require higher voltages, would it be possible to have the voltage options increased to be able to charge up to 61 VDC, this will be possible with the high voltage version of the inverter that comes up to 64VDC.

Do you know what was the cause of ERROR 90, how does the patch fixes that I am really curious about that.

Thanks a lot for your kind comment and for your excellent work
Regards,

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Fri, 13 Apr 2018, 20:34

Luis wrote:
Fri, 13 Apr 2018, 18:20
I have looked at Firmware 73.C but noticed at the noted the maximum voltage is 48VDC bus (58 max charge) if this is intended for Lithium Ion batteries some require higher voltages, would it be possible to have the voltage options increased to be able to charge up to 61 VDC, this will be possible with the high voltage version of the inverter that comes up to 64VDC.
Unfortunately, we don't have a lab with every Voltronic Power model, we just have some PIP-4048s. We can also only patch firmware for which we have the firmware update files. I have no idea how the firmware "knows" it is running on higher voltage hardware. So there is at this stage no possibility of modifying our patched firmware based on 73.00 to run on higher voltage hardware.

It seems to me that it would be much easier to run with a standard voltage inverter-charger, and a battery with fewer cells so that the top of the charge voltage is 58 V or less. For example, if you run into the voltage limit with 14S, go to 13S.

If you already have the high voltage hardware, but the charge bugs are causing you grief, let your supplier know that you're not happy. Sorry, that's all that can be done at this point.
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

Luis
Noobie
Posts: 3
Joined: Fri, 13 Apr 2018, 02:02
Real Name: Luis Perez

Re: PIP-4048MS inverter

Post by Luis » Fri, 13 Apr 2018, 23:10

Thank you very much for the advice.

alain
Noobie
Posts: 2
Joined: Sat, 14 Apr 2018, 04:58
Location: Italy

Re: PIP-4048MS inverter

Post by alain » Sat, 14 Apr 2018, 05:17

Hello coulomb and weber, I'm a long time lurker here, eager to thank you very much for your great efforts setting up patched firmwares for 4048 and for sharing them with everybody.

Now, as I own from a couple of years a Genius40 inverter (I think it is the same to PIP-3248ms) and I'm using it with a 24 cells lead acid 48V 500Ah forklift battery, it seems to me the most of the time they're not charged enough and besides many times happens that sudden loads of about 1,5 or 2 kW applied when some clouds are passing, turn the inverter to go straight from bulk /adsorb stage to float.

Do you know if your lead acid patch for 4048ms is suitable also for my 3248ms?
My current (factory) firmwares are 52.40 and 1.24

xenonhost
Noobie
Posts: 9
Joined: Sun, 23 Apr 2017, 00:19
Real Name: Marian Titieni
Location: Romania
Contact:

Re: PIP-4048MS inverter

Post by xenonhost » Sat, 14 Apr 2018, 05:46

On a system with 5 PIP4048 in parallel, for the last week it doesn't change from grid to solar. I have setup from Watchpower the charging only from grid 2A, (i think it's 10A for the whole 5 pcs) because from solar I don't have such low value and I've lost 2 groups of Winston 16s 40Ah by charging with 20A/PIP.
Anyone having a clue why it doesn't switch to solar anymore?

User avatar
weber
Site Admin
Posts: 2508
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by weber » Sat, 14 Apr 2018, 06:22

xenonhost wrote:
Sat, 14 Apr 2018, 05:46
On a system with 5 PIP4048 in parallel, for the last week it doesn't change from grid to solar. I have setup from Watchpower the charging only from grid 2A, (i think it's 10A for the whole 5 pcs) because from solar I don't have such low value and I've lost 2 groups of Winston 16s 40Ah by charging with 20A/PIP.
Anyone having a clue why it doesn't switch to solar anymore?
What main firmware version is in your PIP-4048s?
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Sat, 14 Apr 2018, 06:36

alain wrote:
Sat, 14 Apr 2018, 05:17
Hello coulomb and weber,
Hi and welcome, Alain, and all the other newbies that I've neglected to welcome.
I'm a long time lurker here, eager to thank you very much for your great efforts setting up patched firmwares for 4048 and for sharing them with everybody.
Thanks for the kind words.
Now, as I own from a couple of years a Genius40 inverter (I think it is the same to PIP-3248ms) ..., it seems to me the most of the time they're not charged enough and besides many times happens that sudden loads of about 1,5 or 2 kW applied when some clouds are passing, turn the inverter to go straight from bulk /adsorb stage to float.
Sigh. That sounds exactly like the main PIP-4048 charge bug.
Do you know if your lead acid patch for 4048ms is suitable also for my 3248ms?
I know for certain that 4048 firmware is not suitable for lower powered models. It might not even be the same Digital Signals Processor, if so it would be like trying to run a Windows program on a Mac. There are hard coded constants in there which make sense only for 4 kW models. Perhaps they use the same source code, maybe all these constants are #defined in an include file, but unfortunately patchers don't work with source code.

Perhaps it's time to make another attempt to contact Voltronic Power about their well-known bugs.


[ Edit: main charge bug -> main PIP-4048 charge bug; fixed quote-of-quote ]
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Sat, 14 Apr 2018, 06:52

xenonhost wrote:
Sat, 14 Apr 2018, 05:46
On a system with 5 PIP4048 in parallel, for the last week it doesn't change from grid to solar. I have setup from Watchpower the charging only from grid 2A, (i think it's 10A for the whole 5 pcs) because from solar I don't have such low value and I've lost 2 groups of Winston 16s 40Ah by charging with 20A/PIP.
40 or 80 Ah of battery seems way too small for 5 paralleled PIP-4048s. That's why the default minimum charge current of 20 A per paralleled machine is too much (long term) for your battery. I note that a total maximum charge current per machine of 10 A is available.
Anyone having a clue why it doesn't switch to solar anymore?
You seem to be attempting to use the 2 A maximum utility charge current per machine setting for solar charging. It doesn't work that way. Setting 11 ("Maximum utility charging current" affects utility charging only. To protect your battery from too high a charge current, you need to use setting 02, "maximum charging current", which is the maximum total (utility plus solar) charge current. All this is hidden from you by Watchpower. I personally don't use Watchpower, so I can't tell you how to configure solar and utility charging at the same time. It may mention "charge source priority", since that's the name of the setting it will need to change. But the lowest maximum total charge current you will be able to select will be 10 A per machine, or 50 A total from 5 machines. If for example only two machines have PV panels connected, then the maximum solar charge current will be 20 A (10 A each from the two machines that have any panels connected).

[ Edit: too much -> too much (long term)]
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

User avatar
weber
Site Admin
Posts: 2508
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by weber » Sat, 14 Apr 2018, 09:14

xenonhost wrote:
Wed, 04 Apr 2018, 15:00
I have bought 11 months ago 48 pcs Winston LifePO4 for a friend. They worked well, but 2 weeks ago 18 pcs got swollen and they are all shortcircuited.
How did you have these 48 cells configured into a battery? Did you first parallel them in groups of 3 (making so-called "buddy triples"), then connect 16 of these triples in series via diagonally opposite corners? That is the recommended way to do it. Alternatively, you might have first connected them into series strings of 16, then connected those strings in parallel. It is more difficult to get equal current-sharing that way, and you need 3 times as many cell-monitoring-units in the BMS.

Where, in relation to each other, were the 18 that died? Did they consist of 6 buddy-triples?
I need a BMS, something for remaining 16 pcs connected to PIP.
Yes. You need a BMS. Every lithium-ion battery needs to be protected by a BMS that monitors the voltage and temperature of every cell and prevents charging when any cell goes overvoltage, overtemperature or undertemperature, and prevents discharging when any cell goes undervoltage or overtemperature. Given that you are in Europe, perhaps this supplier can help:
https://www.ev-power.eu/Battery-Management/
On a system with 5 PIP4048 in parallel, for the last week it doesn't change from grid to solar. I have setup from Watchpower the charging only from grid 2A, (i think it's 10A for the whole 5 pcs) because from solar I don't have such low value and I've lost 2 groups of Winston 16s 40Ah by charging with 20A/PIP.
This sounds like you had them connected in strings of 16 first, then paralleled those 3 strings. But charging them at 100 A alone would not destroy them. Even one string of 40 Ah Winstons can take 100 A (2.5C) with no problem, provided all the cells are balanced.

Given that you didn't have a BMS, did you at least manually balance them when you first installed them?

Coulomb and I do this by setting the absorb voltage to 55.2 V (3.45 V per cell) and monitoring the individual cell voltages with a multimeter while charging, until the first cell goes over 3.45 V. Then we use headlight bulbs with alligator-clip-leads to bring down the voltage of the highest cells. If any cell reaches 3.6 V, we temporarily reduce the absorb voltage setting, just enough to prevent that. We keep moving the headlight bulbs around to the highest cells until all cell voltages remain between 3.44 and 3.46 volts, even after all headlight bulbs have been removed for half an hour. You may need to temporarily raise the float voltage to the same as the absorb voltage, to keep them on charge for long enough to complete this initial manual balancing.

We then leave the absorb voltage set to 55.2 V (3.45 V per cell), the float voltage set to 53.7 V (3.355 V per cell) and the low voltage cutoff set to 50.8 V (3.175 V per cell).

What absorb("bulk"), float and cutoff voltages did you use?
Anyone having a clue why it doesn't switch to solar anymore?
Setting number 16 is charge source priority. A value of "Cut" or "uti" here would prevent solar charging whenever the grid is available.

If you are not running our patched firmware (LFP version), then there are a number of other problems that could be occurring.
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

alain
Noobie
Posts: 2
Joined: Sat, 14 Apr 2018, 04:58
Location: Italy

Re: PIP-4048MS inverter

Post by alain » Sun, 15 Apr 2018, 04:00

coulomb wrote:
Sat, 14 Apr 2018, 06:36
I know for certain that 4048 firmware is not suitable for lower powered models. It might not even be the same Digital Signals Processor... There are hard coded constants in there which make sense only for 4 kW models. Perhaps they use the same source code, maybe all these constants are #defined in an include file, but unfortunately patchers don't work with source code.
It's a pity, anyway many thanks for the kind explanation, Coulomb ;)

mohfamous
Noobie
Posts: 7
Joined: Fri, 06 Apr 2018, 00:17
Real Name: Mohammed Almashharawi

Re: PIP-4048MS inverter

Post by mohfamous » Mon, 16 Apr 2018, 23:49

I have solar inverter Axpert 2kw it does not work I have checked
DC-DC mosfets and IGBTs burnt out
I have changed them
but also the device does not work and no sense of work in it
what do you think the problem

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Tue, 17 Apr 2018, 09:04

mohfamous wrote:
Mon, 16 Apr 2018, 23:49
but also the device does not work and no sense of work in it
what do you think the problem
I don't know the 2 kW models at all. You might be able to get a service manual for the lower power models from the Power Forum downloads area: Axpert Service Manuals.

I'd suspect the various power supplies if you see no life from the display or the LEDs, assuming it has those. You should check out the MOSFET and IGBT gate drivers lest you blow up the replaced parts when the processor starts running.
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

simat
Noobie
Posts: 8
Joined: Thu, 15 Feb 2018, 21:16
Real Name: Simon Matthews

Re: PIP-4048MS inverter

Post by simat » Wed, 18 Apr 2018, 13:12

coulomb wrote:
Mon, 09 Apr 2018, 14:06
But it's hard to tell what's going on without seeing the currents as reported by the PIP in the QPIGS command, and preferably also the charge stage in the undocumented Q1 command, field QQ (to tell when it really went to float). How hard would it be to provide that data?
I have now added logging of data from the PIP4048 to my battery monitor. For anyone that is interested the new software is in the 'testing' branch of the code. Using the config file 'battery1cellPIP.cfg' and summary file 'summary.1cell ' will run my software with the PIP as the data source. The log file will contain the information from the Q1 and QPIGS command. The logfile data is currently hardwired. I am in the process of making this user definable. This is still a work in progress...

We haven't had enough sun to fully charge the battery but I have noticed on a couple of occasions that the PIP has gone from Bulk QQ=11 to Absorb QQ=12 well before the battery voltage has reached the CV voltage.

Is there anyway for the user to reset QQ from 12 to 11?

Simon
Off-Grid with LFP (LiFePO4) battery, battery Installed April 2013
32x90Ah Winston cells 4p8s (24V), 4kW Latronics Inverter, 1160W of Solar Panels
Homemade MPPT controller, BMS https://github.com/simat/BatteryMonitor

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Wed, 18 Apr 2018, 19:56

simat wrote:
Wed, 18 Apr 2018, 13:12
Is there anyway for the user to reset QQ from 12 to 11?
As far as I know, there is no command to set the inverter charge status directly.
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

curasun
Noobie
Posts: 12
Joined: Mon, 26 Feb 2018, 06:20
Real Name: Rubencito Specht

Re: PIP-4048MS inverter

Post by curasun » Thu, 19 Apr 2018, 05:42

Hello everyone.

Can MPPtracker and Watchpower be run on the same pc or laptop?
Why I'am asking? I had watchtower running nicely on my laptop, but 2 day ago I installed a PCM60X CC and installed MPPtracker on the same laptop.
After that when I want to start Watchpower it starts MPPtracker. It looks like MPPtracker overwrote Watchpower.
what can I do? please help

R.G Specht

BruceS
Noobie
Posts: 1
Joined: Wed, 01 Jun 2016, 17:03
Real Name: Bruce Merrett
Location: Mannum, SA

Re: PIP-4048MS inverter

Post by BruceS » Sat, 21 Apr 2018, 18:08

Is the 'exe' file still here? "C:\Program Files (x86)\WatchPower1.05\WatchPower.exe" ?
Try clicking on the WatchPower.exe directly?
*********************
*******BruceS********
*********************

User avatar
weber
Site Admin
Posts: 2508
Joined: Fri, 23 Jan 2009, 17:27
Real Name: Dave Keenan
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by weber » Sat, 21 Apr 2018, 19:59

simat wrote:
Wed, 18 Apr 2018, 13:12
We haven't had enough sun to fully charge the battery but I have noticed on a couple of occasions that the PIP has gone from Bulk QQ=11 to Absorb QQ=12 well before the battery voltage has reached the CV voltage.
Hi Simon, it is considered to be in absorb stage when it is within 0.5 volts of the absorb voltage setting. You can read more details of the absorb to float conditions here:
viewtopic.php?f=31&t=4332&p=64095#p64095
Scroll down to the green heading "Charge Termination Conditions".
One of the fathers of MeXy the electric MX-5, along with Coulomb and Newton (Jeff Owen).

mohfamous
Noobie
Posts: 7
Joined: Fri, 06 Apr 2018, 00:17
Real Name: Mohammed Almashharawi

Re: PIP-4048MS inverter

Post by mohfamous » Sun, 22 Apr 2018, 15:25

Hello all thanks for your quick reply
I have on my 5000VA LCD error code 08
in manual shows update firmware what do I do?
and thanks

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Sun, 22 Apr 2018, 17:01

mohfamous wrote:
Sun, 22 Apr 2018, 15:25
LCD error code 08
The user manual says that this fault code is "bus voltage too high". Yes, the service manual says to update the firmware, but I don't think this will fix it. I suspect that they don't expect this error to come up, but if it ever does come up consistently, perhaps they can fix it with a firmware update. Another thought is that perhaps if the firmware totally crashed (one of the tasks ended up "in the weeds"), then there is an outside chance that the bus soft start could be commanded to switch on on long after starting, while the inverter is running. Different firmware could overcome that problem. The manufacturer doesn't appear to use the watchdog timer to automatically reset in conditions like this.

One potential hardware problem that occurs to me is that perhaps the bus soft start "power supply" isn't turning off, or is coming on when it should not. Check R251, R250, a short from pins 3-4 of U16, U16 itself, perhaps U17 or any of the passives around U16.

If you don't have a reasonably recent firmware revision (say 72.40 or later), then I guess it's worth trying the suggested firmware update. But I'm not optimistic. See this topic's index in the first post for the latest patched firmware, and there are other links to official firmware if you don't want patched firmware for whatever reason.

Edit: Another thought is that when AC charging, a fault in the buck circuit might cause the bus voltage to become too high. When not AC charging, it is supposed to merely connect the inverter bus with the output of the DC-DC converter. Perhaps if its faulty, this could cause bus voltage problems at any time.

[ Edit: added "fault code" , and "to switch on"]
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

mohfamous
Noobie
Posts: 7
Joined: Fri, 06 Apr 2018, 00:17
Real Name: Mohammed Almashharawi

Re: PIP-4048MS inverter

Post by mohfamous » Sun, 22 Apr 2018, 23:07

Hello
in error 09 I have changed the defected parts of Main board Mosfets and IGBTs
But I think there is problem in Control Board
Have you find any problem in your previous projects ?

mohfamous
Noobie
Posts: 7
Joined: Fri, 06 Apr 2018, 00:17
Real Name: Mohammed Almashharawi

Re: PIP-4048MS inverter

Post by mohfamous » Sun, 22 Apr 2018, 23:20

and ow to test the control board

User avatar
coulomb
Site Admin
Posts: 3483
Joined: Thu, 22 Jan 2009, 20:32
Real Name: Mike Van Emmerik
Location: Brisbane
Contact:

Re: PIP-4048MS inverter

Post by coulomb » Mon, 23 Apr 2018, 10:05

mohfamous wrote:
Sun, 22 Apr 2018, 23:07
... I have changed the defected parts of Main board Mosfets and IGBTs
But I think there is problem in Control Board
Have you find any problem in your previous projects ?
No, I can't recall any problems with a control board, though I faintly remember attempting to trace a few parts of one once. The control board seems to be mainly the digital signals processor itself and lots of interface / buffering circuitry (analogue and digital). I think that there isn't much that would typically fail there.

I haven't seen a schematic diagram (official or traced) for the control/daughter/processor board. It will be very hard to test, because the processor has some 80 input/output pins, and the assignment of general purpose I/O signals to functions isn't documented. I know precious few from reading the firmware, e.g. GPIO5 seems to control the inverter relay, and GPIO7 seems to control the load relay (in both cases, a digital 1 at the processor turns the relay coil on).

We don't seem to have a post on debugging the gate drivers; I thought we did but can't find it. Perhaps you can find some inspiration from this post: Testing inverter gate drivers when the battery-side MOSFETs are removed (added to the index just today).
Learning how to patch and repair PIP-4048 inverter-chargers and Elcon chargers.

Post Reply