Cyber Power CPS5000ECH48A User Manual page 20

3.10.5 Parallel Operation in Three phase (Only CPS5000ECH48A-P available)
!
WARNING
3 inverters group three phase system:
One inverter in each phase
Power Connection
Communication Connection
4 inverters group three phase system:
Two inverters in one phase and only one inverter for the remaining phases:
Power Connection
Communication Connection

All inverters must be connected to the same batteries and ensure each
group of cables from the inverters to the batteries in the same length.

Do not connect the current sharing cable between the inverters which
are in different phases. Otherwise, it may damage the inverters.
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