07
3.3.4 SEC1000S Grid Connection Diagram
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
UPS
CT
PV Panels
PV Panels
PV Panels
PV Panels
PV Panels
PV Panels
PV Panels
PV Panels
PV Panels
PV Panels
Battery
Battery
Battery
Battery
Battery
Battery
Battery
Battery
Utility
Battery
Battery
Back-Up Loads
Back-Up Loads
Back-Up Loads
RS485 Data cable
AC cable
CT connected cable
DC cable, Battery cable, AC cable (backup side)
Back-Up Loads
Back-Up Loads
Back-Up Loads
Back-Up Loads
Back-Up Loads
Back-Up Loads
Back-Up Loads
Note: No separate Smart Meter is required in inverter paralleling system along with SEC1000S deployed. This solution
is only applicable to the paralleling of on-grid side not to back-up side. There are special requirements on the version
of firmware of ET or BT applied in this solution, with DSP version 01 or newer and ARM version 09 or newer. The
firmware version of SEC1000S designated for inverter paralleling application should be 01 or newer.