Released a new firmware version for our inverter/chargers such as the MultiPlus-II and Quattro series, VE.Bus firmware v501.
It fixes a long standing issue where our Quattros, when configured with a grid-code for ESS, would - sometimes - not accept an AC generator on its input.
This is fixed by adding a new option into the Grid-tab, allowing to set that AC Input 1 is a Generator.
This fix applies to ESS systems using a Quattro-II, and having a Generator for backup. But also applies to systems using the larger Quattros, typically used in combination with an external anti-islanding relay. A combination certified and approved for the German VDE-4105.
Note that besides setting the AC Input 1 to be a generator, which fixes above described issue, it also allows the common Transferswitch settings to be set. Typically used to set a higher AC low disconnect, to prevent overload issues when stopping the generator.
How to install:
First of all a warning: updating the firmware of this product range is strongly adviced to be carried out by trained personel only. Doing the update will cause all settings to be reset to their default: requiring the product to be reconfigured.
End-users: please contact your installer.
Professionals: see usual documentation for how to update VE.Bus firmware.
A new version of VictronConnect, that includes firmware 501, allowing for an easy install; was released on 2023-01-18.