Max charge rate of XW+ Inverter and charge limit of MPPT 60-150 Charge Controllers?
Just trying to get a clearer understanding of the Inverter and Charge Controller charge settings/ limitations.
I have "Cascading" selected on my SCP and as such (as far as I know as of now) when I select 10% max charge rate for my XW+ which I am gathering would be 63 amps max if batteries where discharged deeply(10% of my 630 AH battery bank), I notice the charge limit of 6.0 Amps (6.0 to 60 amp setting options) is automatically selected in the two solar Charge controllers which(6 amps is 10% of 60 amps of course). If I change the Solar charge controller to 60 amps charge limit I notice the max charge rate of the XW+ automatically adjusts to 100%. Just an observation. I don't actually charge at 100% of course.
Now whenever I turn on my system, if I am charging off the grid power, the XW will start in bulk and 13.8 amp is displayed on the Inverter screen and SCP screen. It shortly transitions from bulk to absorb and then float depending on how low the batteries are of course.
My questions are:
1. There are two different charging sources. The Solar Charge Controllers and the XW. Is the 6 amp charge controller limit from my charge controllers the same charging effect on the batteries as 10% max charge rate from my XW+?
2. Do I need to turn off cascading and manually set the inverter/ charger and each of my two charge controllers charging limits or is it functioning normally?
3. When my Inverter is displaying 13.8 amps in bulk is that at the voltage that the batteries are charging at? I am assuming so. I think that when the charger is in bulk and it is cold, the temp comp. bulk voltage is around approx 60 volts.
4. Why do I only see 13.8 amps Max my XW display? I guess I am trying to understand how 13.8 amps is the 10% max charge rate.... of what? Maybe my question would be answered if I discharge my bank 50% and see how many amps max it pulls to charge in bulk?
I'll call Schneider tech support in the morning and see if they can't straighten me out. Just thought I'd reach out to you guys since you guys have always been such a solid source of support which is very appreciated!
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