16kw inverter in three phase setup
Hi. Having a weird problem. Setup is 3x 16kw Sunsynk inverters with a Freedom one battery. When grid is present, output is 380 between phases. The problem is when running "off-grid" with no grid supply, the voltage between the phases is 200V. Each inverter measures 228v between its L and N. Setup is all dipswitches up position, parallel selected. Inverter 1 is phase A with modbus 1, inverter 2 is phase B with modbus 2 and inverter 3 is pahse c with modbus 3. All three gose to "normal" mode (LED) at the same time and there is comms between the inverters and also to the battery.
Please help.
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Sorted. It seems it was the neutral/earth bond.