The Quattros are now on the latest fw 490
ccgx on 2.73
Have been called to site as the system was down due to a flat battery
Now the issue is that as soon as the grid tie units start to produce power the hz increase to 53 hz and they are thus disconnect.
have tried the ess and the PV assistants but no soluton-
Now the Cause
this setup has a main feed in fault being that 2 phases are down
then the above issue occurs with the grid tie solar systems thus we cant recharge the batteries.
However if all 3 phases are off then it works correctly and the hz is not addjusted and the grid tie then charge the batteries
SO to be clear here
the issue only occurs if all 3 phases are NOT dropped
If one grid phase stays active and the quattro disconnects from the grid as it should - The the grid tie units are turned off by frequency shift all the time
Has anyone else seen this and has anyone got a solution
