Siemens SITOP UPS1600 - Page 215

Installation
7.3 Connecting SITOP BAT1600 battery modules to the UPS module
SITOP UPS1600 / BAT1600 / UPS1100
Equipment Manual, 07.2021, A5E37775406-11-76
215
Connecting several SITOP BAT1600 battery modules
To extend the power failure buffering time, up to 6 identical SITOP BAT1600 battery modules
can be connected to a SITOP UPS1600.
The connected battery module is automatically detected.
Note
When connecting several battery modules in parallel (max.
6) the following applies:
1.
Ensure that the battery modules are the same type and have the same charge state.
2.
Battery modules are wired to the UPS in a star configuration with the same cable lengths
(ensure that the impedance is the same for all cables).
3.
Dimension the cross-
section of the star configuration wiring for the total current (if required,
reduce all fuse values).
Proceed as follows, to connect several SITOP BAT1600 battery modules:
1. Connect several battery modules in parallel to the power terminals and the communication
terminals of the UPS module corresponding to the following wiring schematic.
Figure 7-4 Recommended wiring for up to 6 battery modules connected in parallel
2. Check that the wiring is correct.
3. Insert the fuses.
The connected battery modules are automatically identified after several seconds.
WARNING
Danger due to high short-circuit current
Before inserting the fuses, check the correct polarity of the wiring of all of the connected
battery modules.