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--- ve.bus:manual_parallel_and_three_phase_systems [2021-04-10 06:57] – mvader
+++ ve.bus:manual_parallel_and_three_phase_systems [2021-12-02 09:05] – [A continuous, unbroken negative link must be maintained between all units] mvader
@@ Line 62: / Line 62: @@
 For units in 3 phase configuration: Our products have been designed for a star (Y) type three phase configuration. In a star configuration all neutrals are connected, a so called: "distributed neutral".
 We do not support a delta (Δ) configuration. A delta configuration does not have a distributed neutral and will lead to certain inverter features not operating as expected.
-==== A continuous, unbroken negative link must be maintained between all units ====
-VE.Bus is not isolated on the MultiPlus range and Quattros.
-Therefore it is very important to prevent damage to the communications cards that the negative battery terminal of a Quattro remains continuous between units as long as the VE.Bus cable that connects the multiple units is connected.
-If units need to be isolated at both poles, or local wiring requirements demand double pole isolation for each unit, the communications cables must be removed first AND appropriate safety signage needs to clearly explain this.
-Double pole isolation of the system is allowed (and sometimes required), as long as it at the battery connection end of the DC bus, and the Multis/Quattros remain with continuous negative between themselves.