Powerware 650825 kVA E6, E7 Interface Board E8, E12 Backfeed, Fuse Inverter, Inverter Output

UNDERSTANDING UPS OPERATION

AC Input to UPS			AC Input to Bypass			Battery Aux		Building Alarms
Rectifiers 3 Wire			3 or 4 Wire A−B−C
A−B−C Rotation			Rotation			48V Battery		Alarm Relays
				Bypass		Shunt Trip
A	A	A						X−Slot
				Breaker
			B			Remote EPO		Interface
UPM 3	UPM 2	UPM 1			(CB4)
E1,	E1,	E1,	E6, E7,			Interface Board
E2,	E2,	E2,	E8, E12
						Backfeed
E3	E3	E3
				Static		Contactor (K5)
			Fuse	Switch
		Input	Input			Input
	Contactor		Contactor			Contactor
		(K1)	(K1)			(K1)
		Rectifier	Rectifier			Rectifier
	Fuse		Fuse			Fuse
Fuse			Fuse			Fuse
	Fuse		Fuse			Fuse
		Inverter	Inverter			Inverter
	Output		Output			Output
	Contactor		Contactor			Contactor
		(K3)	(K3)			(K3)
								AC Output to
							E9, E10,	Critical Load
								D
	Battery		Battery			Battery	E11, E12
Converter			Converter			Converter
Fuse			Fuse			Fuse

Battery Contactor (K2)	Battery Contactor (K2)	Battery Contactor (K2)
			UPS
UPM 1	UPM 2	UPM 3	CABINET
E4. E5	E4. E5	E4. E5
C	C	C
Battery	Battery	Battery
Breaker	Breaker	Breaker
BATTERY SYSTEM	BATTERY SYSTEM	BATTERY SYSTEM
(Not supplied with the UPS)	(Not supplied with the UPS)	(Not supplied with the UPS)

NOTE Callout letter A maps to Table 3-6on page 3−11. Callout letters B, C, and D map to Table 3-5on page 3−10.

Service Connector

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.

Figure 6-13. UPS System – Separate Rectifier Feed, Separate Battery, Dual-Feed Configuration

6−16 EATON Powerware® 9395 UPS (650–825 kVA) Installation and Operation Manual S 164201725 Rev 2 www.powerware.com