EXPANSION OF THE STORAGE SySTEM
35
© SMA Solar Technology AG Subject to changes to the technical content! Version 1.1 Last updated 04/2021
10 Expansion of the storage system
Both the capacity and the charging and discharging power of the STORAGE-67-TS-10 battery systems can be
expanded.
10.1 Capacity expansion using an expansion module
Installation of the expansion modules
ATTENTION! Risk of damage to the unit and/or battery inverter if the expansion and original
battery modules have different states of charges.
If a battery module is installed in a STORAGE-67-TS-10 battery storage system and this module’s state of charge
differs from that of the battery modules already present, this can cause damage to the battery modules or the
SMA HV APU.
1
New battery modules are delivered with a state of charge (SoC) of approx. 20 %. Before you integrate a new
battery module into an existing battery system, the existing system must be brought to the same voltage level.
First, check the state of charge of the new battery modules by measuring the voltage, which must be exactly
50.0 +/- 0.1 V
DC
. In the event of any discrepancies, please contact our service center.
2
Adjust the voltage of the original battery modules of the STORAGE-67-TS-10 so that it matches the voltage of the
new battery modules exactly. Use the LCS tool. Further information on the procedure can be found in the follow-
ing section “Adjusting the battery voltage via the LCS tool“ on page 36.
3
Take the battery cabinet out of operation in accordance with section “9 Shutdown“ on page 34.
4
Prepare the battery cabinet for the installation of the battery modules. Remove the cabinet connector set cables
from the two lowermost battery modules
6
. Start with the DC cables
6.1
. Continue with the patch cable
6 .2
and the rack balancing cable
6 .3
.
5
Now remove the two cable clamp rails and
1 .5
reattach them below the bottom slide rails. Leave two holes
free on the rack frame below the slide rails and fit the cable clamp rails
1 .5
on the third hole.
ATTENTION! Risk of damage to the unit due to faulty cabling.
Faulty connection of the DC or BAT COM cables will cause damage to components of the battery manage-
ment system and/or the battery modules of the STORAGE-67-TS-10, necessitating replacement. Ensure that con-
nection is carried out properly in accordance with section “5.5 Battery module wiring“ on page 17 et seq.
6
Now insert the new battery modules in the lowermost position.
7
you can now connect the new modules to the old ones. Start on the left side of the cabinet with the DC cables
5 .1
of the module connector set
5
. Continue with the patch cable
5 .2
and the rack balancing cable
5 .3
.
Then connect the cables of the cabinet connector set
6
to the new modules. Start with the DC cables
6 .1
.
Continue with the patch cable
6 .2
and the rack balancing cable
6 .3
. Then connect the new and old battery
modules in the right half of the cabinet using the module connector set
5
.
8
Finally, ensure that the electrical connection is correct in accordance with section “5.5 Battery module wiring“ on
page 17 et seq.
10
you can now recommission the storage system in accordance with section “8 Commissioning“ on page 30.
STOP
