User manual

Operating Instructions
84
The procedure can be performed only after the installation has been completed (which includes the
maintenance bypass cabinet), after the system has been placed in operation by authorized personnel
and after the external power switches have been closed. See Figure 60 for more information.
Figure 60 Single UPS with external Maintenance Bypass Cabinet—typical configuration
Y
N
A B C
Ext
Byp
Bat Byp
Battery
Static
Switch
Inverter
SW1-D
SW1-A
Fuse
SW
Qout UPS
Rotary
Switch
Y
Rectifier
SW1-C
Charger
Sys Out CB2
N
UPS1
CB1
Input Mains
Supply A B C
N
Qin UPS
N
Input Supply
ABC
Sys in CB1
To Load