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Electrical Connection
• CT connection diagram
L2
L3
N
L1
PE
PE
L1
L2
L3
N
EPS
Grid
This is the Meter/CT port
of the inverter.
CT
L line
Public grid
electricity
CT_T CT_S
CT_R
Grid
Loads
The direction of CTs
Household
meter
Figure 7-57 CT connection diagram
* The arrow on the CT must point at the public grid.
* CT-R must be connected to L1, CT-S connected to L2, and CT-T connected to L3 in
accordance with the L1, L2 and L3 of the inverter's Grid port.
Pin Assignment
Table 7-9 Pin assignment for Meter/CT
Item CT Meter CT
Pin 1 2 3 4 5 6 7 8
Pin Definition CT_R1 CT_S1 CT_T1 METER485A METER485B CT_T2 CT_S2 CT_R2
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