Operating instructions

Protect 5.31/xxx-480-220-120 10 kVA - 120 kVA
Page 13 of 56 8000020680 BAL, en
The rectifier (REC) supplies the inverter and the battery with
DC voltage. The inverter (INV) converts this DC voltage into a
1-phase AC voltage.
In the event of a mains fault (such as a power failure), the power
supply to the load is maintained from the battery without any
interruption.
The supply reliability is further increased by the static bypass
switch (SBS), which in the event of an INV fault switches the
SBS circuit over to the load circuit without any interruption.
3.2 Operating Elements of the UPS
12
1
2
3
7, 8
9
10
6
11
X1 X2 X3 X4
OFF
5
4
Figure 3 Arrangement of the operating elements, components and individual PCBs
with open door
1 Fans
2 Optional PCBs on the control unit pivot plate
3 Remote signalling (master board and expansion board)
4 CAN-COM controller (CCC)
5 Terminal strip X12 (remote signals and options)
6 Q29, manual bypass switch
7, 8 Ventilation grids
9 Terminals for rectifier and SBS circuits, battery and loads
10 Q1, load interrupter switch for the rectifier circuit
11 Internal fuses for control unit and fan (A91)
12 DOU display and operation unit