Boards for HiPath 3000 Nur für den internen Gebrauch
A31003-H3590-S100-7-7620, 06/2012
3-68 HiPath 3000/5000 V9, Service documentation
boards.fm
Central Board
3.2.16 UPSC-D
Introduction
The UPSC-D board (S30122-K5660-A300, S30122-K5660-M300 (Figure 3-22)) is used in Hi-
Path 3550 and HiPath 3350 (wall housing). The UPSC-D board supports power supply and bat-
tery management functions. No other components are required if operated as an AC power
supply. To be able to switch over to emergency battery operation if there is a failure of the AC
supply, there must be an additional battery pack connected.
Power supply unit
The UPSC-D board is only released for permanent operation in an AC grid. Permanent opera-
tion is not permitted in a DC network.
The temporary connection to a DC supply (48 V battery pack or 48 V-DC power) serves to
bridge a failure of the AC supply. The battery pack should be given preference.
External power supply
If the power supplied by the UPSC-D is insufficient, an external power supply (i.e., a Powerbox
PB3000 with LUNA2) can be installed to provide additional power. To do this, connect the DC
output on the PB3000 to the special -48-Vdc input on the UPSC-D. The UPSC-D’s internal -48-
V output is deactivated when the external power supply is connected.
Emergency battery operation
In order to be able to switch over to emergency battery operation if there is a failure of the line
voltage or external power supply, one of the following measures can be taken:
● An additional 48 V/1.2 Ah battery pack should be connected to the UPSC-D.
● A 48 V/7 Ah battery pack should be installed in the Powerbox PB3000. If the PB3000 is to
be used only for emergency battery operation, but not as an external power supply, a
LUNA2 is not required.
>
NOTE
Damage to property owing to surge voltage
If a 48-V direct-current system is being used instead of a 48V battery pack for DC
power supply, too, connection must be performed as for a battery pack. The 48-V
direct-current system must not exceed the maximum voltage of 60 V in operating
mode, during loading, and when an error occurs. The direct-current system must not
be connected to the UPSC-D if this cannot be guaranteed.
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