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Thank you for the great forum, Safe Driving over the weekend. Sincerely Jason

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Hi

I have a Proline Energy 5kva Inverter (Model:POEIP5K48 which was installed for me over a year ago as a back up. I also recently replaced the batteries with 4 x 200 Ah Solarwize Solar Gel AGM batteries.  I installed 3 strings with 2 x 305W JA solar panels.  I get  77.0 Vdc at inverter. My problem is I do not get a PV reading on inverter display. I played around with settings but not sure what I can do to get solar panels to work. I have no original manual or cd as everything was kept by installer who is now no where to be found. Is there a fix for my problem.

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Posted (edited)

Can you post a picture of the sticker on the side, please? I can't find data on that model, perhaps it's one that needs a higher PV voltage. But before wiring all the panels in series, it will be best to confirm this, or the inverter charger could be damaged.

Edit: Ah. You left an "R" out of the model number. Even with the correct model number, the information seems conflicting (like MPPT range 60-115 V, yet maximum Voc is 105 V). My guess is that it's a PWM model. In which case, 2S of ordinary 24 V panels with total Voc of some 77 V should be fine.

Edit 2: if there is a setting 16, and it is set to CUt (Charge from UTility only), change it to SNU (Solar aNd Utility charging). I'm not sure if Prolines are clones or not (the metalwork is different to standard Axperts; this may be a customisation that they specify to Voltronic Power, or it might mean it's a clone). If it's a clone, it may have the Charger Source Priority setting as a different setting number, and the options may be different.

Edited by Coulomb

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Setting 16 was on SNU, I also tried CSO and CUt with no luck. There is still no indication that the solar panels connect to Inverter. I  think I must get the original manual because unit has got a setting 28, which has to do with the type of output to select. It is nowhere else available in my search for a manual. Not sure where else to look for it.

Inverter132017.jpg

20200406_114705[1].jpg

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16 hours ago, Jitters said:

Setting 16 was on SNU, I also tried CSO and CUt with no luck. There is still no indication that the solar panels connect to Inverter.

Is there a display with the PV volts? If so, what does it show?

Quote

I  think I must get the original manual because unit has got a setting 28, which has to do with the type of output to select.

It's about paralleling inverters, or the lack thereof. SnG is the correct value for a single inverter. That setting is documented in the parallel guide. Yes, it's confusing.

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6 hours ago, Coulomb said:

Is there a display with the PV volts? If so, what does it show?

It's about paralleling inverters, or the lack thereof. SnG is the correct value for a single inverter. That setting is documented in the parallel guide. Yes, it's confusing.

This is the display I think you are asking me about. Is there a way to reset or to set back all settings to default status to start settings all over. Is it possible  software can be faulty.  I am sorry if my questions do not make sense. I thought I might be able to do this installation in lock down time but I think I am also now in a lock down. 

20200407_120510.jpg

20200407_120557.jpg

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36 minutes ago, Jitters said:

This is the display I think you are asking me about.

That's the one. It's basically saying that the solar charge controller hasn't switched on; it gets its power completely from the PV input. Can you put a multimeter across the PV input terminals? I'm guessing that's the 77 V that was mentioned in your first post. Polarity is important. Hopefully, if the polarity is swapped, no harm will have come to the solar charge controller, but that's not certain.

The other possibility is: has this inverter been opened up (the upper part, not just the terminal area at the bottom) at any stage? If it has, it's really easy to miss-connect one of the cables to the solar charge controller.

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