Sonnen sonnenBatterie eco 8.0, Installation Instructions Manual, Page: 44 / 63

6 Electrical connection
6.7.1 Measuring the battery module voltages
Damage to battery modules due to high compensating currents!
Differing battery module voltages lead to high compensating currents when the
storage system is switched on.
►
Measure the voltages between the internal plus and minus poles of all battery
modules (see figure below) and note these down.
The battery modules are only allowed to be installed if the maximum deviation
between the measured voltages is less than 1 V. If the deviation is greater than 1 V:
►
Notify the service team.
Figure 37:
Measuring the battery module voltages
V COM
V
6.7.2 Numbering the battery modules
Figure 38:
Numbering the battery module
0
►
Apply the supplied stickers to the
modules.
The numbering begins with zero and
continues in ascending order.
6.7.3 Defining the communication addresses
Figure 39:
Setting the communication addresses
using the rotary switch
0
►
Set the communication addresses
for the battery modules using the
rotary switch.
The communication address matches
the number of the battery module.
6.7.4 Setting the termination switches
page 44 of 63 KD-291 | Part no. 52187 | EN | X01
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