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Electrical connection 6
6.5.1 Connecting the signal line
Digital outputs (XDO) are located on top of the storage system. These can be used
to control external devices. The digital signals are transmitted via the signal line (2).
We recommend connecting the signal line to a terminal strip (3). The individual
wires of the signal line coming from the terminal strip can then be distributed to
the corresponding downstream external components.
The white wire of the signal line (2) represents the earth (GND). If more than one
digital output is used, multiple lines must be connected to the earth. For this reason
we recommend installing multiple terminals which are connected via a bridge (4) to
the earth (GND).
1 Signal line
2 Signal line
3 Terminal strip
4 Bridge for connecting terminals
XDO Digital outputs
Wire
colour Wire
cross-section Voltage Max.
Amperage Function
white 0,25 qmm 0 VDC 350 mA Earth (GND)
brown 0,25 qmm 24 VDC 50 mA
DO
self-consumption switch
green 0,25 qmm 24 VDC 50 mA DO PV reduction 1
yellow 0,25 qmm 24 VDC 50 mA DO PV reduction 2
grey 0,25 qmm 24 VDC 50 mA DO min/max SoC
blue-red 0,25 qmm 24 VDC 50 mA DI CHP
grey-pink 0,25 qmm 24 VDC 50 mA Supply voltage 24 V DC
►
Connect the signal line as shown in Figure 30.
KD-291 | Part no. 52187 | EN | X01 page 35 of 63
2
3
4
XDO
1
Figure 30: Connecting the signal line for digital outputs
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