3.4 Devices of the Inverter
Figure 4: Devices of the inverter
Position Device Description
A Touch Display Different kinds of inverter data can be viewed on the touch display. The
touch display is only used to view data. The display screen is activated by
touching the touch display.
B Service interface The service interface allows access to the user interface.
C Key switch The key switch is used to switch the inverter on and off.
D DC switchgear The DC switchgear disconnects the inverter from the PV array.
E SC-COM The SC-COM is the communication unit of the inverter. The SC-COM estab-
lishes the connection between the inverter and the system operator.
F AC disconnection unit With the AC disconnection unit, the electrical connection between the in-
verter and MV transformer can be disconnected manually.
In the event of residual current, the AC disconnection unit disconnects the
connection between the inverter and MV transformer automatically.
G AC contactor The AC contactor disconnects the electrical connection between the in-
verter and MV transformer automatically.
3 Product Overview
SMA Solar Technology AG
System Manual 21MVPS22JP-SH-en-11
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