Siemens 6EP4131-0GB00-0AY0, Equipment Manual

Page: 223 / 264

Installation
7.7 SITOP battery module connections
SITOP UPS1600 / BAT1600 / UPS1100
Equipment Manual, 07.2021, A5E37775406-11-76
223
7.7.2 SITOP UPS1100 connections
Connections 1.2 Ah/2.5 Ah/3.2 Ah/5 Ah
Connections 7/12 Ah
Connection X1 ①
The connections "X1+" and "X1-" are used to transfer power between the SITOP UPS1600 and
the SITOP UPS1100.
1.
Ensure that the cables are dimensioned corresponding to the fuses in the SITOP UPS1100
and the impedances between SITOP UPS1600 and SITOP UPS1100 are the same.
2. Only connect charged batteries with one another.
Connection X2 ②
Connections "X2-1" and "X2-2" serve to transfer data between SITOP UPS1600 and SITOP
UPS1100 (see Installation (Page 211)).
When several battery modules are used, note the following:
• Up to 6 battery modules of the same type can be connected together in parallel.
• If different battery modules are connected in parallel, relay REL2 is energized and de-
energized at regular intervals (battery defective). No calculations with regard to charge
and remaining buffer time are performed. The battery modules are not charged, but
buffering is possible.
• If more than 6 battery modules are connected in parallel, relay REL2 is energized and de-
energized at regular intervals (battery defective). No calculations with regard to charge
and remaining buffer time are performed. Charging and buffering, however, is possible.