UDD-SD-116/
Release Date: 31.12.2014/Rev No: 1/Rev.
Date
: 27.04.2015
18
N
BAT-
L
N
L
BAT+
N
BAT-
L
N
L
BAT+
B A T 1
B A T 2
I n p u t
O u t p u t
Wiring diagram for two UPS parallel system
N
BAT-
L
N
L
BAT+
N
BAT-
L
N
L
BAT+
I n p u t
B A T 1
B A T 2
N
BAT-
L
N
L
BAT+
O u t p u t
B A T 3
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.
3.4.2 Parallel system operation and maintenance