AN_EPM_SOL_Ver0.
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Setting: Backflow Work Mode
Mode 2 is always recommended for unbalanced loads. (for detailed explanation refer to the user
manual.
After adjusting the settings successfully
, check on the advanced info menu option for the
following.
Inverter Power
: This will display the power of each inverter as measured by the EPM
CT Connect Status:
This must show OK, otherwise if CT_NG is displayed it means that the CT is
open circuit or current passing through is extremely low which is usually a result of using CTs with
a secondary current less than the recommended 5A.
Checking your CT polarity
The physical check is to make sure that P1 always faces the grid and P2 always faces the load.
If in
doubt
about the direction
of the
CT,
please follow these steps to double check.
On your inverter menu, navigate to Advanced Settings and on the Grid ON/OFF select off.
Off state stops the inverter from producing power. (Must remember to switch Grid back on after
check)
Navigate to the Advanced info and check the power of the individual phases. Note at this stage
only your grid is available and producing power.
The individual phases: Active_APwr, Active_BPower & Active_CPower will show -(negative) Watts
showing that you are buying power from the grid, once all 3 phases are verified, navigate back to
Advanced Settings and switch grid on.
