Search found 140 matches

by solamahn
Wed, 14 Sep 2016, 20:56
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

Might have something to do with starting the charging day with a battery voltage higher than 50v. I know 2424msx is like that. If the charging day starts with a battery voltage above 25v, then the inverter goes straight into float. I set float at 27v and it worked fine with the Lifepo4. Still charge...
by solamahn
Wed, 31 Aug 2016, 02:06
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

You have to use a common battery bank. Seperate same length leads from each inverter to the battery bank plus join the battery + and - from each inverter. Also seperate scc feeds.
by solamahn
Sun, 31 Jul 2016, 15:06
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

Another problem with 4048's can be caused by having the lvd set too low. Factory 42v is too low. I think the lower setting could have contributed to MOSFET failure. I use 47v now which I think is helping. Also earlier 4048's did not have USE option for program 05
by solamahn
Sun, 31 Jul 2016, 14:59
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

I had lots of failures with early 2013/2014 4048's. MOSFET failures and fan failures. Fan failures caused overheating and 12v regulator failure. The fan problems stemmed from corrosion of the fan soldered terminals. There are 4 terminals. 2 for power in to run the fan and 2 for the run signal sent t...
by solamahn
Fri, 10 Jun 2016, 02:00
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

Just thinking. I had a faulty parallel board once. Try change each parallel board one at a time. I had a spare one so it was easy for me
by solamahn
Fri, 10 Jun 2016, 01:55
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

I have installed more than 10 parallel systems, 4048 and 3248 without any problems. Only suggestion I could make is use both parallel inverter connecting cables and join ac out cables together
by solamahn
Wed, 25 May 2016, 01:24
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

I use 56.8 and 54 for new AGM's and gradually increase to 58 and 55 as they age and when they are getting really old 58 and 58
by solamahn
Tue, 24 May 2016, 17:27
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

Yes. I changed the CPU board that plugs into the main pcb. This problem only occurs with a full battery because that is when the battery does not contribute much to the DC voltage regulation. If the battery was kept below full then it should stop the problem but not good for the batteries. My proble...
by solamahn
Tue, 24 May 2016, 14:37
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

Definitely not enough batteries but that is not what is causing the problem because it used to happen with less panels. The scc is trying to limit battery charge current and voltage. That's why the PV voltage is high 111v. This could also indicate that the batteries are full. The problem that I expe...
by solamahn
Tue, 24 May 2016, 11:52
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

This was a problem with earlier 4048's. What year of manufacture and firmware revisions.
by solamahn
Mon, 18 Apr 2016, 19:05
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

It's actually running in single phase now. Had some problems balancing the loads with the 3 phase plus they are using a single phase generator for backup. It runs an office block and a workshop
by solamahn
Mon, 14 Mar 2016, 17:55
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

Mpp have a seperate mppt solar charge controller. The problem I used to have with the 4048ms was that it did not generate enough solar power, especially for sites with no generator or mains. My previous solution was to parallel pips or add a solar charge controller. Msd model solves that problem bet...
by solamahn
Mon, 14 Mar 2016, 13:58
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

U3 is the second mppt charger processor. No remote display. Yes 2 solar panel icons. Also you can read each arrays voltage and power seperately and total power. Very nice unit.
by solamahn
Sun, 13 Mar 2016, 21:11
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

4048msd firmware
U1 75 00
U2 01 01
U3 01 01
by solamahn
Mon, 07 Mar 2016, 14:41
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

First I had it set to 56 and 54 but that seemed too high. With the PV breakers off the resting battery voltage was 53.6. I was aiming for 53.3 so that's why I tried 54.5 and 53.5. I need to make more observations to see how this setting goes. I will also set the generator start to 50 and stop at aro...
by solamahn
Mon, 07 Mar 2016, 13:49
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

Installed a 4048msd with 24 x 280w panels, 12 at 15 degrees due east and 12 at 15 degrees due west with 16 CALB CA400. Set bulk at 54.5, float at 53.5 and lvd at 48. Works really good but I would like the lvd to be about 50v
by solamahn
Sat, 27 Feb 2016, 02:01
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

I got some 4048msd and 4048mst
by solamahn
Wed, 10 Feb 2016, 02:00
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

No problem switching the master or the slave off whenever you feel like it.
by solamahn
Sun, 07 Feb 2016, 11:38
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

The slave inverter does not shut down at low load. Also overload bypass does not work. I have also had a problem with generator connection. If the output from the pips is separated, 28 set to 51G, the generator connection works. If outputs are joined and 28 set to PAL, then generator will not connec...
by solamahn
Sat, 06 Feb 2016, 11:18
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

I have more than 10 sites running parallel pips 3248ms and 4048ms and 1 site with 3 4048 in parallel. My one at home has 2 4048ms in single phase parallel. Mine is connected to the mains also.
by solamahn
Fri, 22 Jan 2016, 21:48
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

72 cell
by solamahn
Thu, 21 Jan 2016, 12:48
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

I used to use strings of 2 x36v 280w panels. Now I have changed to 3 in series. The heatsinks run hotter but I get more power out. You would think that the lose due to heat would mean less power out. A HS model would work better with 2 panels in series. 15 panels 3 x 5 is the most I ever connect. I ...
by solamahn
Sat, 09 Jan 2016, 20:35
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 450
Views: 28979

Re: PIP inverter repairs and hardware modifications

Good. I will continue to turn all my fans upside down pre installation. I have some msd and mst coming next week.
by solamahn
Wed, 30 Dec 2015, 23:20
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2569
Views: 538979

PIP-4048MS inverter

I will try 52.25 and 72.40 to see if they work.