Search found 3874 matches

by coulomb
Sat, 15 Feb 2020, 17:18
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.
Replies: 24
Views: 484

Re: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.

TitchRSA wrote:
Sat, 15 Feb 2020, 15:23
No - I set #16 to CSO for the 'faulty inverter' - Solar energy charges as first priority and utility only after no sun (when dark).
Ah, of course. SnU might use utility power during the day, which would be a waste.
by coulomb
Sat, 15 Feb 2020, 14:50
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.
Replies: 24
Views: 484

Re: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.

3. On the 'faulty inverter", Change program #11 to 10A (Max utility charge), Change program #16 to CSO (Charge Source Priority) - only on the 'faulty inverter'. My theory was that if there is at least some demand on the bus it might keep the bus voltage regulated to some extent. That's an interesti...
by coulomb
Sat, 15 Feb 2020, 08:52
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.
Replies: 24
Views: 484

Re: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.

I checked back, my initial error was #55 (DC component in the output voltage exceeds the upper threshold), that was in June 2019, then a while later I had #8 errors. Ah. I wonder if you have a pesky load that you use rarely. One that has a half-wave rectifier in it for cheap and nasty low power ope...
by coulomb
Fri, 14 Feb 2020, 08:13
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 438
Views: 22774

Re: PIP inverter repairs and hardware modifications

The reason why this IGBTs blew was because there was a blown miniature resistor(R220) on one of U3 (SG3525) outputs. It would appear that R220 is on the output of U9, not U3. U9 is an SG3525; U3 is an ACPL-T350. Strange that the IGBT blew as a result of a part associated with the 400V-side MOSFETS....
by coulomb
Thu, 13 Feb 2020, 19:22
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2544
Views: 518047

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

Ebay seller said that V2 model is EOL and new model is: https://www.ebay.com/itm/163192198388 ? But the one shown in the Ebay advertisement is a V2. Perhaps he/you meant that the V are now at end-of-life, and the V2 are replacing them. But the V2 are 450 V max MPPT models, so you'd need to add insu...
by coulomb
Wed, 12 Feb 2020, 20:19
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 438
Views: 22774

Re: PIP inverter repairs and hardware modifications

Hi the best I can do at this stage is to post my notes on it and to repost your PSu diagram Ah! I thought that U3 was on a schematic that I posted, possibly for some other model. My mistake. It would sure be nice to trace out that U3 circuit one day. [ Edit: I mean, in more detail :) ] [ Edit 2: Du...
by coulomb
Wed, 12 Feb 2020, 19:19
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 438
Views: 22774

Re: PIP inverter repairs and hardware modifications

I measured all the correct voltages over that zeners and about 19.8V over D1, D2 and D19. This 3 diodes sits directly over the opto drivers supply pins 5 and 8. Are you sure? This would indicate a fairly substantial error in the schematic. I don't have a main-board handy to check at present. I assu...
by coulomb
Mon, 10 Feb 2020, 17:23
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2544
Views: 518047

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

Could it be connected in parallel with my 3 existing 4048MS? No. I did not find 4048V model on ebay? Do you have some link to it? https://www.mppsolar.com/v3/hybrid-v-series/ The V series are hybrids, not off-grid models, so it's no surprise that they can export to the grid. [ Edit: However, they l...
by coulomb
Sun, 09 Feb 2020, 18:57
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2544
Views: 518047

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

Ah. One is a ...5P64 and the other is a ...5P. That means a different turns ratio for the transformer, and a different range for all the battery voltage related parameters. So the CAN packets will be different and incompatible. It will not be possible to parallel them. It looks like your ...5P64 was...
by coulomb
Sun, 09 Feb 2020, 14:36
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

Here's what I've got 415V x 10A = 4150W 50Hz 415V / 10A = 41.5 Ohms (total impedance and resistance) Impedance @ 50Hz = 31.42 Err, that's like an equivalent impedance for the mechanical load (plus a small winding resistance and reactance). Impedance @ 100Hz = 62.83 If the impedance doubled at doubl...
by coulomb
Sun, 09 Feb 2020, 12:12
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

earn about it and how it'll affect things. Is the phase to phase voltage going to be a controlled function output of the controller? Yes. But there is a limit. The peak of an AC sine wave is √2 times the RMS value. It's a little more complex for three-phase, but it turns out that the answer is stil...
by coulomb
Sun, 09 Feb 2020, 08:51
Forum: Electric motors and controllers
Topic: questions regarding rewinding and stator insulation
Replies: 14
Views: 249

Re: questions regarding rewinding and stator insulation

I'm rewinding a 415v 4kW 3 phase asyncronous AC motor down to 100v (96v, but the math works better this way) I'm no motor expert, so I'll let others comment on the rest of your questions. But 96 V sounds like a nominal battery voltage. I hope you realise that a 100V battery will produce less than 7...
by coulomb
Fri, 07 Feb 2020, 20:59
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 438
Views: 22774

Re: PIP inverter repairs and hardware modifications

I don't know much about their voltage ,i think j3 is 16v zener and BC is 5 or 6 v zener.you can search here http://www.s-manuals.com/smd The "J3" SMD marking code is for a Vishay 18 V zener diode; the BC is for one of two manufacturers whose part numbers end in C5V6 . The 5V6 suggests 5.6 V, and cl...
by coulomb
Fri, 07 Feb 2020, 15:37
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 438
Views: 22774

Re: PIP inverter repairs and hardware modifications

Where in the diagram does he 4 x 3300uf capacitors go? At the very left, across the battery (after the 200 A fuse or fusible link), physically near the MOSFETs. The nearness guarantees a low inductance connection between the MOSFETs and the capacitors. They're what cause the splat if you connect th...
by coulomb
Thu, 06 Feb 2020, 17:57
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2544
Views: 518047

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

grfarrow wrote:
Thu, 06 Feb 2020, 15:12
If a patch will come out at some point I'd rather wait with my non 64V.
Patched firmware 74.40e is now in early alpha testing (eyeballing the code). Depending on my time, it should be available for beta testing in the next week or so.
by coulomb
Thu, 06 Feb 2020, 13:22
Forum: Renewable Energy and Storage (Non-EV)
Topic: Un-matching PV panels
Replies: 6
Views: 235

Re: Un-matching PV panels

if it is a PiP MS inverter the open circuit limit is 145vdc. I was assuming a model with a 450 V or 500 V max MPPT. You could connect 2 of the 38v Voc panels in series plus one of the 48v Voc panels ( 124vdc Voc) and the other 3 panels the same, then connect both strings in parallel. That should ju...
by coulomb
Thu, 06 Feb 2020, 05:43
Forum: Renewable Energy and Storage (Non-EV)
Topic: Un-matching PV panels
Replies: 6
Views: 235

Re: Un-matching PV panels

Hi every one.I have vmii 5kw inverter and 6 no of pv panels 4 of them are 275wp(voc 38v imp 8A) canadian solar mono and 2 are 400wp(voc 48 imp 9.8A) risen mono perc. That's a severe power mismatch, but most of that is voltage. My understanding is that the 9.8A panels will produce 8A, so you'll only...
by coulomb
Thu, 06 Feb 2020, 05:29
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 438
Views: 22774

Re: PIP inverter repairs and hardware modifications

catalincre wrote:
Thu, 06 Feb 2020, 03:11
The IGBT on the left side are 75g60hd, are they good?
It depends. If they are genuine Fuji Electric parts, I'd say yes. If they are clones of these, then who knows.
by coulomb
Wed, 05 Feb 2020, 18:33
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2544
Views: 518047

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

Does anyone know is it possible to "return" excess power, when batteries are full, to grid (power company) with PIPs or I have to buy new 10kW grid inverter to do that? My understanding is that the models that can operate without a battery (so that excludes yours) can in some modes push power from ...
by coulomb
Wed, 05 Feb 2020, 06:28
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP inverter repairs and hardware modifications
Replies: 438
Views: 22774

Re: PIP inverter repairs and hardware modifications

I've just purchased a "King" unit, and am wondering if the RJ45 connector can supply enough current to power a RaspberryPI via a little DC-DC SMPS on the 12V line. I don't know the King's circuitry, and I assume that you're talking about the RS-232 port (on an RJ-45 connector). In a PIP-5048MS, the...
by coulomb
Mon, 03 Feb 2020, 22:53
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.
Replies: 24
Views: 484

Re: PIP5048MG: 3Phase Configuration: Fault 08 and anomalies.

As there is no PV at night and the loads are using utility (SOL) I am assuming the DC-DC converter creating the bus voltage is the one connected from battery to bus. If the battery voltage is high enough, yes. Otherwise, the free-wheeling diodes in the inverter may set the bus voltage (if the inver...
by coulomb
Mon, 03 Feb 2020, 20:06
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)
Replies: 187
Views: 17630

Re: PIP-5048GE, PIP-5048GK and PIP-5048MG inverters (with unsafe SCC)

So I am back to the fault 8 on the one 5048MG (3 in parallel) - worked fine for 2 days and then happened again last night. Have you had any feedback from the German forum regarding flashing a 5048MG with 71.71? Sorry, no news there. Last contact was mid November. Wow, has this been going that long?...
by coulomb
Mon, 03 Feb 2020, 06:58
Forum: Batteries, charging, management and monitoring
Topic: Low cost BMS
Replies: 434
Views: 58658

Re: Low cost BMS

the LiPO cells I've installed... Rob, do you really mean LiPo (as in Lithium Polymer), or LFP (Lithium Iron Phosphate, LiFePO₄)? It makes a big difference. LFP is nominally 3.2, and should not go much beyond 3.6 V. Nearly all other lithium chemistries are nominally 3.7 or 3.75 V, and should not go ...
by coulomb
Fri, 31 Jan 2020, 07:59
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP-4048MS and PIP-5048MS inverters
Replies: 2544
Views: 518047

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

Hi, Welcome to the forum. Have two inverters, older Axpert SOL-I-AX-5P64 with firmware 72.70 and recently acquired a second unit but with firmware 72.30. The SOL-I-AX-5P64 would have to be the newer one. Are you sure the firmware on this newer one is 7 2 .30, not 7 4 .30? [ Edit: arrgh! No, it won'...
by coulomb
Thu, 30 Jan 2020, 18:47
Forum: Renewable Energy and Storage (Non-EV)
Topic: PIP5048MG - Earth and Battery
Replies: 8
Views: 210

Re: PIP5048MG - Earth and Battery

The 3-phase RCD is on the Utility 3-Phase input - then that branches to the Inverter AC Inputs - no more RCD's in the way. OK, but didn't you say you made the change to put the AC-ins of the inverters directly to the 3-phase breakers, i.e. before the 3-phase RCD? If turning on the inverters trips t...