GXMnow
Solar Wizard
- Joined
- Jul 17, 2020
- Messages
- 2,723
Near the top of the page where it shows the path,
"Solar Equipment Reviews and Technical Support > Grid-tie Inverters >"
Click on "Grid Tie Inverters".
You will be brought to the page of all the threads under that heading. At the top, under the title "Grid Tie Inverters" there is a box to type in. Enter a title to create your new thread under the same heading as this one. As you are asking for tech support for a grid tie inverter, it is a reasonable place for this thread. I put my system build thread under "Show and Tell".
I do agree, the voltage measurement error is a bit annoying, but it does not stop us from using the device effectively. That is one of the least annoying software "Features" I have found in the XW-Pro. Basically, when I first started using the device and noticed the error between my BMS and the XW, I verified it with my Fluke meter. I found they were both off a little. I was able to calibrate the BMS, but not the XW-Pro. So when I entered my desired voltages, I offset my entries by the known reading error in the XW. Not idea, but it works just fine.
I later noticed that the error in the XW is not consistent. I think they are actually trying to compensate for wire resistance. When there is a big change in current, the voltage change lags it a little. For "accurate" voltage readings, they recommend having the Battery Monitor that measure the voltage at the cells.
"Solar Equipment Reviews and Technical Support > Grid-tie Inverters >"
Click on "Grid Tie Inverters".
You will be brought to the page of all the threads under that heading. At the top, under the title "Grid Tie Inverters" there is a box to type in. Enter a title to create your new thread under the same heading as this one. As you are asking for tech support for a grid tie inverter, it is a reasonable place for this thread. I put my system build thread under "Show and Tell".
I do agree, the voltage measurement error is a bit annoying, but it does not stop us from using the device effectively. That is one of the least annoying software "Features" I have found in the XW-Pro. Basically, when I first started using the device and noticed the error between my BMS and the XW, I verified it with my Fluke meter. I found they were both off a little. I was able to calibrate the BMS, but not the XW-Pro. So when I entered my desired voltages, I offset my entries by the known reading error in the XW. Not idea, but it works just fine.
I later noticed that the error in the XW is not consistent. I think they are actually trying to compensate for wire resistance. When there is a big change in current, the voltage change lags it a little. For "accurate" voltage readings, they recommend having the Battery Monitor that measure the voltage at the cells.