23
figure 5-2
Label of COM2 Terminal
table 5-2 Label Description of COM2 Terminal
Label
Description
RSD
RSD-1,
RSD-2
Reserved
NS
NS-1, NS-2
For inverter emergency stop
DRM
D1/5, D2/6,
D3/7, D4/8,
R, C
For external Demand Response Enabling Device ("AU"/
"NZ")
For Ripple Control
RS485-1
A1, B1
For inverter daisy chain
(Cannot be used simultaneously with COM1 port for WiNet-
S)
DO
NO, COM
External alarm interface, e.g. light indicator and/or buzzer
The external DC voltage should not be higher than 30 V and
the current not higher than 1 A.
RS485-3
A3, B3
Reserved
Meter
A2, B2
Smart energy meter interface
5.3
Electrical Connection Overview
The electrical connection should be realized as follows:
(A) PV string
(B) Inverter
(C) Grid
(D) External device
(E) AC circuit breaker
(F) Smart energy meter
User Manual
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