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18kpv Error Code: 3

Goin'Solar

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What exactly does error code 3 mean? It throws this code any time the inverter doesn't want to change a setting. There is no description of this code in the manual so I can't figure out what needs to be fixed.

For example, if i try to change GENERATOR RATED POWER to anything above 12 it throws this code even though the app shows a setting parameter of 0-25.5.
 

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It means you are trying to set a value that is out of range.
It would be better if it said that rather than a generic error code.
 
I did a firmware update and now it will allow me to input up to the max listed (25.5).

So now that I have my generator properly sized by the system, is there any reason why I shouldn't set the Battery Charge Current Limit from the generator to the listed max of 250Adc? I think this would calculate to 14kW (250A x 56Vdc). Generator is 22kW and rated for 90A at 240Vac.
 
I did a firmware update and now it will allow me to input up to the max listed (25.5).

So now that I have my generator properly sized by the system, is there any reason why I shouldn't set the Battery Charge Current Limit from the generator to the listed max of 250Adc? I think this would calculate to 14kW (250A x 56Vdc). Generator is 22kW and rated for 90A at 240Vac.
You will hit the 12,000 watt charging limit before hitting the amp limit.
 
Got it. I forgot about that.

So would running the inverter at it's 12k charge limit be advisable or should I de-rate and give some headroom? Could it impact lifespan of the system?

I want to be able to charge as quickly as possible in order to conserve propane. There are no LP deliveries when it snows and utility power can be down for a few days to around a week at a time.
 
Got it. I forgot about that.

So would running the inverter at it's 12k charge limit be advisable or should I de-rate and give some headroom? Could it impact lifespan of the system?

I want to be able to charge as quickly as possible in order to conserve propane. There are no LP deliveries when it snows and utility power can be down for a few days to around a week at a time.
You would need to do testing to see where your generator is most efficient.
 
That depends on how big of battery you have. How many Ah is your battery bank rated at?
System is the PowerPro ESS with 1 18kpv and 2, 280 AH batteries. I may also end up adding 2 more batteries.

The manual says the batteries can handle the full 230 that the 18kpv outputs, but i'm curious of the effect on longevity.
 

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It will be a few more years before we can answer the longevity question but I have run mine at 12KW and it did not seem stressed.
A better way to do it would be monitor the RPM on the generator and when it starts to struggle that will be your limit.
 

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