What's going on here?

[Leemaisel]

I have three Eg4(Luxpower) 6000xp inverters in parallel.

I switched from the EG4 monitoring app to SolarAssistant and am quite happy.

Solar Assistant has some great graphing, which caused me to notice the fact that the output voltage graph is VERY different on one of the inverters, and I need to know if it's a problem, and what do I need to do to fix it?

Thanks!

 

[TM48]

What's with the scale being 240 at every gradient? I'd double check your parallel cables and be sure the switches are on for first and last inverter but off for the middle one. You are using the shielded cables right?

 

[LakeHouse]

output voltage graph is VERY different on one of the inverters

According to the vertical scale, all three have voltages fluctuating between 240V and 240V. So at worst, I'd guess it's between 239V and 241V. This is not a problem.

 

[DougL]

I have three Eg4(Luxpower) 6000xp inverters in parallel.

I switched from the EG4 monitoring app to SolarAssistant and am quite happy.

Solar Assistant has some great graphing, which caused me to notice the fact that the output voltage graph is VERY different on one of the inverters, and I need to know if it's a problem, and what do I need to do to fix it?

Thanks!

When in parallel is one of them set at the Primary inverter and all others servants to it? If so then is Inverter #2 setup as your Primary?
I'm curious how the inverter firmware hands off loading in a parallel configuration and as was mentioned, that chart is pretty useless without accurate labels.

 

[timselectric]

I have three Eg4(Luxpower) 6000xp inverters in parallel.

I switched from the EG4 monitoring app to SolarAssistant and am quite happy.

Solar Assistant has some great graphing, which caused me to notice the fact that the output voltage graph is VERY different on one of the inverters, and I need to know if it's a problem, and what do I need to do to fix it?

Thanks!

They are all putting out 240v, I don't understand why you think there's a problem.

 

[timselectric]

that chart is pretty useless without accurate labels.

They are decimal points within 240v.

 

[TM48]

When in parallel is one of them set at the Primary inverter and all others servants to it? If so then is Inverter #2 setup as your Primary?
I'm curious how the inverter firmware hands off loading in a parallel configuration and as was mentioned, that chart is pretty useless without accurate labels.

On the 6000xp the master inverter is whichever one you power up the eps switch first.

 

[Leemaisel]

Yeah, I figured out that it's such a fine variable, the chart is showing 240v, but looking closer, it's 239-241 so it's definitely within spec.

 

[Leemaisel]

Yep! I think you're right they need a better graph lol.

 

[timselectric]

If it fluctuates above or below 240v, it will show on the graph.
I have seen mine drop to 239v on occasion.

 

[ScrodusGargleRotten]

If it fluctuates above or below 240v, it will show on the graph.
I have seen mine drop to 139v on occasion.

139???? Eeeeegaddss!

 

[timselectric]

139???? Eeeeegaddss!

Corrected lol

 

[DougL]

I have three Eg4(Luxpower) 6000xp inverters in parallel.

I switched from the EG4 monitoring app to SolarAssistant and am quite happy.

Solar Assistant has some great graphing, which caused me to notice the fact that the output voltage graph is VERY different on one of the inverters, and I need to know if it's a problem, and what do I need to do to fix it?

Thanks!

Did you power on Inverter #2 first? As others have stated, the first powered on EPS is the primary inverter so it could very well operate differently to the other 2 which are just picking up load variations. But it is strange that they are all voltage so is it at the load or something more internal?That spiking dip seems to line up with 2 inverters and it's different than the 2 which differ from inverter #2. Strange