EAsun SMR II can not be programmed over RS232. Software like Watchpower, Solar Assistant and ICC-PI are not able to send settings to SMR II. Probably because the manufacturer (Sorotec?), has used a lousy firmware that can not be upgraded.
What I would like to do is to be able to change the running mode from for example PUL or Sbu over to Utility power+charging at any given moment. The reason for this is that I want to catch hours when the power is cheap on the grid. There are ways to do this with most Solar inverters/chargers but not mine. I have 6pcs of SMR II running 3-phase (2 SMR for each phase). One unit is the master, and when changing mode via the LCD display/buttons, the 5 slaves will change too.
Problem is how to do this. Does anybody know a way? Could the change be forced by some relay? If You have any idea how to do this, then please let me know! As mentioned, this is the EAsun SMR II 5.5Kw off grid hybrid inverter. It is different from other EAsun models and other MPP clones.
Regards
Sebastian
EDIT:
Does it work to use a high current 48VDC 3-phase charger on the same busbars as used by my six inverters and the battery stack? My batteries are 200Ah Lifepo4 51.2V. I have five of them in parallel. How will all the other equipment react if another charger apart from those in the SMR II inverters came online? Could that be done? I have a source who builds chargers to custom made to work optimal with a specific battery.
Im thinking this could be a way to charge from the grid during the cheap hours (here normaly 00-04). But what will happen if I do this? What mode should the SMR II be set to operate in? Will my house blow up?
What I would like to do is to be able to change the running mode from for example PUL or Sbu over to Utility power+charging at any given moment. The reason for this is that I want to catch hours when the power is cheap on the grid. There are ways to do this with most Solar inverters/chargers but not mine. I have 6pcs of SMR II running 3-phase (2 SMR for each phase). One unit is the master, and when changing mode via the LCD display/buttons, the 5 slaves will change too.
Problem is how to do this. Does anybody know a way? Could the change be forced by some relay? If You have any idea how to do this, then please let me know! As mentioned, this is the EAsun SMR II 5.5Kw off grid hybrid inverter. It is different from other EAsun models and other MPP clones.
Regards
Sebastian
EDIT:
Does it work to use a high current 48VDC 3-phase charger on the same busbars as used by my six inverters and the battery stack? My batteries are 200Ah Lifepo4 51.2V. I have five of them in parallel. How will all the other equipment react if another charger apart from those in the SMR II inverters came online? Could that be done? I have a source who builds chargers to custom made to work optimal with a specific battery.
Im thinking this could be a way to charge from the grid during the cheap hours (here normaly 00-04). But what will happen if I do this? What mode should the SMR II be set to operate in? Will my house blow up?
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