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UNDERSTANDING UPS OPERATION
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
,
,
, and
NOTE If the load requires a neutral, a bypass source neutral must be provided. If the load does not require a neutral and there is no neutral conductor
connected at the bypass input, a neutral to ground bonding jumper must be installed. DO NOT install both a source neutral and a bonding jumper.
6−8
EATON Powerware
AC Input to
UPS Rectifier
3 or 4 Wire A−B−C
3 Wire A−B−C
Rotation
A
E1, E2, E3
Input Breaker
(CB1)
(optional)
Input
Contactor
(K1)
Rectifier
Fuse
Fuse
Fuse
Inverter
Output
Contactor
(K3)
Battery
Converter
Fuse
Battery Contactor (K2)
UPM 1
E4. E5
C
Battery
Breaker
BATTERY SYSTEM
(Not supplied with the UPS)
D
map to Table 3-5 on page 3−10.
Figure 6-6. Four UPM UPS System, Output Dual-Feed, Separate Battery System
®
9395 UPS (1000–1100 kVA) Installation and Operation Manual
AC Input to
Bypass
Rotation
Bypass
Breaker
B
(CB4)
E6, E7,
E8, E12
Static
Switch
Fuse
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)
S
164201764 Rev 1 www.powerware.com
Battery Aux
48V Battery
Shunt Trip
Remote EPO
Interface Board
Backfeed
Input
Contactor
(K1)
Rectifier
Fuse
Fuse
Fuse
Inverter
Output
Contactor
(K3)
Battery
Converter
Fuse
Battery Contactor (K2)
UPM 3
UPS CABINET
E4. E5
C
Battery
Breaker
BATTERY SYSTEM
(Not supplied with the UPS)
Building Alarms
Alarm Relays
X−Slot
Interface
AC Output
to Critical
Load
E9,
D
E10,
E11,
E12
Service Connector
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