Power Cabling; Cabling Diagram (2 Kva Ups - Siemens SIMATIC PCS 7 OSx Hardware Manual

C.1 Overview
General
Description

Power Cabling

C-2 Uninterruptible Power Supply
An Uninterruptible Power Supply (UPS) is used to protect data integrity
during abnormal power loss. If you lose AC power, the UPS should provide
power to the OSx station for a minimum of 20 minutes.
Figure C-1 shows cabling arrangements for a typical UPS system.
To properly maintain your system (single-station system), install a
minimum of a 2 KVA system.
If you need additional help in selecting or installing a UPS, contact your
supplier.
A 2 KVA (minimum) UPS provides sufficient emergency power for a
single-station system (monitor, system unit, and printer). Install a second
power strip in back of the system to provide this emergency power.
Figure C-1 shows cabling connections for both primary and UPS power
using a 2 KVA system.
AC Power
2 KVA
UPS
Figure C-1 Cabling Diagram (2 KVA UPS)
UPS Power
System Unit Power Strip 1
SIMATIC PCS 7 OSx 4.0.0 Hardware (PA RISC)
System
Printer
Unit
(Opt.)
and
Monitor