For over one year I run a threephase array with 2x3 MP2-5000 devices. The ESS works like expected but two minor things are difficult to understand:
1)
Multiplus L1 of master set indicates a premature low battery warning at its front panel LED while the other 5 Multiplus do not issue such warning. Battery array is Pylontech U5000 what reports well over 20% and about 49 Volt in all cases. The ESS setup is done according to the Victron Pylontech application for 15s Pylons. Low battery warning starts as soon as voltage drops below about 50Volt. I double checked the voltage directly at the Multiplus terminals and they are exactly same. A 30x10mm busbar distributes the DC input very well. Is there any setup to supress this warning ?
2)
The L2 of master set issues more heat dissipation than other 5 units. For asymmetrical loads, its even more than the parallel L2 slave. Of coarse, cable length are identical. Probably I have to go on checking the exact currents and temparatures for more detailed comparison.
Multiplus array (and battery array) appear as single compound device in the remote console while the MPPTs report values for each channel. The Multiplus compound array only reports one voltage what is correct. There seems hardly any usage of reporting individual voltages of devices what are connected to the same battery source.
