A client of mine purchased two EG4 6500 inverters and asked me to install them. After I installed the inverters and programmed them for split-phase operation, one of the inverters gave an error code 32 and would not do anything else. After going through all the so-called testing and attempted firmware updates, Signature Solar finally allowed us to exchange the defective inverter.
We installed the new inverter and had Signature Solar guide us with the programming for split-phase operation, battery type, and charging profile. The client has about 3kW of solar divided between the two inverters for now but plans to add more PV when he has the money for a purchase.
If the batteries are not charged enough by the end of the day from PV, he wants to top off the batteries with his generator, 9kW, 120/240. When he runs the generator. the inverters will bypass the power from the generator to the loads, which is minimal, but not charge the batteries with the generator and remaining PV.
The manual states that these inverters will utilize PV and utility for charging. We have been in communication with Signature Solar about the issue but cannot come to a conclusion. I have spoken with several of their so-called techs and sent emails asking what part of the programming should be corrected and it seems that nobody has an answer. I don't think Signature Solar knows much about these 6500 inverters and their first go-to fix is always a firmware upgrade.
The current programming for both inverters are as follows;
#2 70A.
#3 APL
#5 EG4 with comm cable. We have four EG4 LiFePo4 batteries
#11 60A "not sure if this is AC amps or DC amps"
#12 SOC 10%
#13 SOC 30%
#16 SNU Solar energy and utility will charge the battery at the same time.
We have seen a warning # 10 { output power derating }. This will show up once in a while but I don't have a clue as to what it means. Evidently, neither do Signature Solar techs.
The last issue we had, the inverters accepted the generator charging only when we turned off the PV but it would slowly raise the amperage to the setpoint and charge the batteries for a short period then drop out the charging current to the batteries all at once and the generator, which was under a moderate load, would suddenly ramp up and send a surge to the house. NOT GOOD !!! He now has some appliances blown up from the surge.
Does ANYONE out there have a solution ??? It's pretty evident Signature Solar has none !!
These inverters are advertised to accept battery charging from utility and PV at the same time.
We installed the new inverter and had Signature Solar guide us with the programming for split-phase operation, battery type, and charging profile. The client has about 3kW of solar divided between the two inverters for now but plans to add more PV when he has the money for a purchase.
If the batteries are not charged enough by the end of the day from PV, he wants to top off the batteries with his generator, 9kW, 120/240. When he runs the generator. the inverters will bypass the power from the generator to the loads, which is minimal, but not charge the batteries with the generator and remaining PV.
The manual states that these inverters will utilize PV and utility for charging. We have been in communication with Signature Solar about the issue but cannot come to a conclusion. I have spoken with several of their so-called techs and sent emails asking what part of the programming should be corrected and it seems that nobody has an answer. I don't think Signature Solar knows much about these 6500 inverters and their first go-to fix is always a firmware upgrade.
The current programming for both inverters are as follows;
#2 70A.
#3 APL
#5 EG4 with comm cable. We have four EG4 LiFePo4 batteries
#11 60A "not sure if this is AC amps or DC amps"
#12 SOC 10%
#13 SOC 30%
#16 SNU Solar energy and utility will charge the battery at the same time.
We have seen a warning # 10 { output power derating }. This will show up once in a while but I don't have a clue as to what it means. Evidently, neither do Signature Solar techs.
The last issue we had, the inverters accepted the generator charging only when we turned off the PV but it would slowly raise the amperage to the setpoint and charge the batteries for a short period then drop out the charging current to the batteries all at once and the generator, which was under a moderate load, would suddenly ramp up and send a surge to the house. NOT GOOD !!! He now has some appliances blown up from the surge.
Does ANYONE out there have a solution ??? It's pretty evident Signature Solar has none !!
These inverters are advertised to accept battery charging from utility and PV at the same time.
