Figure 2-8 Power supply system with three-phase power feed (star connection)
PSU#0 PSU#1
Figure 2-9 Power supply system with three-phase power feed (delta connection)
PSU#0 PSU#1
2.8.4
Uninterruptible power supply (UPS) connection
(optional)
Using an uninterruptible power supply (UPS) enables the stable supply of electrical
power to the system in case of power failure, widespread power outage, etc.
If the customer has ordered UPSs, use a separate UPS for each power supply system.
Connect PSU#0 and PSU#1 to the input power supplies of different systems.
Figure 2-10
Power distribution box (for three phase star connection)
Power distribution box (for three phase delta connection)
shows a power supply system with UPS connections.
Chapter 2 Planning and Preparing for System Installation
AC 380 to 415V
AC 200 to 240V
27