Search found 8 matches

by Cactus
Mon, 23 Sep 2019, 01:52
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10075

Re: PIP inverter repairs and hardware modifications

Hi Aaron, Not claiming to be smart or anything but the way I understand these failures (blown mosfets, IGBT's and associated components) is that a voltage rise above normal operating values due to various reasons including a sudden increase in PV charge voltage or a sudden unloading of the inverter ...
by Cactus
Mon, 23 Sep 2019, 01:34
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10075

Re: PIP inverter repairs and hardware modifications

Hi Dirk, The 2sa1020 driver transistor I replaced was Q57, it is one of the surface mount ones under the pcb near the mosfets. It can be identified in the first picture on page 16 of the service manual along with details for testing both NPN and PNP drivers. My approach is to measure and compare the...
by Cactus
Sat, 21 Sep 2019, 00:22
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10075

Re: PIP inverter repairs and hardware modifications

Hi Dirk, My inverter had the "bus soft start error", error code 09. It is a 48v model (with parallel board installed) It is currently working perfectly after changing the four recommended capacitors (C8,C9,C12,C13), all 16 mosfets, one of the 2SA1020 (Q57 I think) driver transistors, the 4 IGBT's on...
by Cactus
Sun, 15 Sep 2019, 00:21
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10075

Re: PIP inverter repairs and hardware modifications

Hi Everyone, I'm not sure if this information has already been posted elsewhere but I just want to add some information I have had to learn the hard way for anyone wanting to repair one of these units (PIP-4048MS or PIP-5048MS and all their various other names and models). I've successfully blown my...
by Cactus
Fri, 30 Aug 2019, 17:17
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10075

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

Many many thanks for that information Weber, much appreciated.
by Cactus
Fri, 30 Aug 2019, 16:06
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 361
Views: 10075

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

Hi all, I was hoping someone would be able to provide me with the value of capacitors C152 - C162 in a PIP-4048MS (C152 in Coulombs partial schematic on page 71 of this thread dated Thu, 13 Jul 2017, 21:17) as I managed to damage one of mine while cleaning the pcb during repairs and my old eyes don'...
by Cactus
Sun, 10 Mar 2019, 13:13
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2458
Views: 472613

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

Thanks for the detailed reply Weber. It is indeed a MKS 4K-48 as you assumed. I guess I'll just have to live with the buggy, limited capability factory firmware for now as I can't afford to replace the unit should I brick it by experimenting with your patched firmware with no way to reload the origi...
by Cactus
Sat, 09 Mar 2019, 03:54
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2458
Views: 472613

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

Hi everyone, I've been following this thread for a while and only today actually joined the forum. I'm based in Joburg South Africa and own a (rather unusual I guess) Axpert 4000va / 4000W Pf 1 Voltronics (looks authentic) running 54.10 firmware sold to me by Full Circle Solar that recently blew up ...