Figure 67. Ups System - Four Upm, Common Rectifier Feed, Separate Battery, Dual-Feed Configuration - Eaton Power Xpert 9395 Installation And Operation Manual

Understanding UPS Operation
Figure 67. UPS System – Four UPM, Common Rectifier Feed, Separate Battery, Dual-Feed
Configuration, Continuous Static Switch
Input
Contactor
(K1)
Rectifier
Fuse
Fuse
Fuse
Inverter
Output
Contactor
(K3)
Battery
Converter
Fuse
Battery Contactor (K2)
UPM 4
FI-UPM CABINET
C
Battery
Breaker
BATTERY SYSTEM
(Not supplied with the UPS)
A B C
NOTE Callout letters , ,
NOTE If the load requires a neutral, a bypass source neutral must be provided. DO NOT install both a source neutral and a bonding jumper.
118 Eaton Power Xpert 9395 UPS Installation and Operation Manual 164201764—Rev 14
AC Input to
UPS Rectifier
3 or 4 Wire A-B-C
3 Wire A-B-C
Rotation
A
E1, E2, E3
Single-Feed Kit
(Not supplied
Input Breaker
with the UPS)
(CB1)
(optional)
Input
Contactor
(K1)
Rectifier
Fuse
Fuse
Fuse
Inverter
Output
Contactor
(K3)
Battery
Converter
Fuse
Battery Contactor (K2)
UPM 1
E4,
E4, E5
E5
C
Battery
Breaker
BATTERY SYSTEM
(Not supplied with the UPS)
D
, and map to the applicable Input/Output Ratings and External Wiring Requirements (Four UPM, Separate Battery) Table in Chapter 3.
AC Input to
Battery Aux
Bypass
48V Battery
Shunt Trip
Rotation
B Remote EPO
E6, E7,
E8, E12
Static
Switch
Fuse
Backfeed
Contactor (K5)
Input
Contactor
(K1)
Rectifier
Fuse
Fuse
Fuse
Inverter
Output
Contactor
(K3)
Battery
Converter
Fuse
Battery Contactor (K2)
UPM 2
E4, E5
C
Battery
Breaker
BATTERY SYSTEM
(Not supplied with the UPS) (Not supplied with the UPS)
Building Alarms
Interface Board
Input
Contactor
(K1)
Rectifier
Fuse
Fuse
Fuse
Inverter
Output
Contactor
(K3)
E9,
E10,
Battery
E11,
Converter
E12
Fuse
Battery Contactor (K2)
UPM 3
UPS CABINET
E4, E5
C
Battery
Breaker
BATTERY SYSTEM
Service Connector
Alarm Relays
X-Slot
Interface
AC Output
to Critical
Load
D