7
③
Connect input cables of all UPS together to one common utility power terminal block.
I nput common terminal bl ock
Uti l i ty power suppl y
Output common terminal bl ock
Load
Load
Load
Load
. . .
Parallel UPS system view
INPUT
BAT1
BAT2
OUTPUT
R
S
T
N L
N
BAT+ BAT-
R
S
T
N L
N
BAT+ BAT-
Wiring diagram for two UPS parallel system
INPUT
BAT1
BAT2
R
S
T
N L
N
BAT+ BAT-
R
S
T
N L
N
BAT+ BAT-
BAT3
OUTPUT
R
S
T
N L
N
BAT+ BAT-
Wiring diagram for thee UPS parallel system
④
If the UPS is the standard type, each UPS has batteries inside already. If the UPS is the long-run type,
each UPS should be equipped a individual battery pack.
⑤
After installation, check all the wiring carefully, be sure to confirm correct, then can operate the system.
Summary of Contents for 3106
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