
Product description
3
3.2 System components
The inverter of the storage system is retrofittable for the connection of an
external Demand Response Enabling Device (DRED)
1
in order to support
Demand Response Mode Zero (DRM 0).
F1
XETH
XMOD
S1
XUSB
XRE1
2
1
3
XDIO
XAC
S1
XSO3
XSO2
XSO1
XPVM
XPVP
XSO4
F1
SPV
Figure 1: System components of the storage system
No.
Designation
Function
1
Filter plate
Holder for filter pad.
2
Inverter
Conversion of batteries’ direct current into alternating
current.
3
Battery module
Storage of electrical power.
F1
Fuse switch F1
On / Off switch of the storage system.
S1
Switch S1
Pressed during the switch-on procedure.
SPV
PV disconnector
Switch to isolate all poles of the DC connection
between the photovoltaic system and the inverter.
XAC
Mains connection
Connection to the public electrical supply network.
XPVP
PV plus connection
Connection to the plus wire from the photovoltaic
system.
XPVM
PV minus connection Connection to the minus wire from the photovoltaic
system.
XDIO
Digital inputs and
outputs
Interface to emit and receive digital signals.
XSO1
USB port
Port for connection of an Z-Wave USB stick.
XSO2
Modbus port
Data connection to power meter.
XSO3
Ethernet port
Data connection to router for home network.
XSO4
Reserve opening.
Table 3: Description of system components
1
Set ‘Retrofitting DRED port’ is available from sonnen GmbH.
KD-421 | Part no. 22136 | EN | X03
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