Chapter 2 Single UPS Installation And Commissioning 21
Liebert
®
ITA 10kVA UPS User Manual
Green
Black
Red
Green
Black
Red
Red
Black
Green
Figure 2-23 Battery cable A
The connection procedures are as follows:
1. Make sure that all the external I/O MCBs of the UPS are open.
2. Confirm with a voltmeter that no DC voltage is present on the battery ports shown in Figure 1-3 on the rear panel of
the UPS.
3. Take out the battery cable A from the UPS accessories, connect the red, black and green terminal of one end of the
battery cable A to the corresponding terminal of the battery port on the rear panel of the UPS, and connect the other
end of the battery cable A to one of the battery ports of the two battery modules, as shown in Figure 2-24.
UPS
Battery
module 1
Battery
module 2
Figure 2-24 Battery cable connection for standard UPS
Connecting battery cable of long back-up UPS (battery cabinet is used)
The long back-up UPS provides a battery cable B (length: 1.5m), which has a PP45 plug at one end, and three OT
terminals at the other end, as shown in Figure 2-25. It is used to connect the battery cabinet to the UPS.
Green
Black
Red
OT
terminal
Figure 2-25 Battery cable B
The connection procedures are as follows:
1. Disconnect the input MCB of the external battery cabinet.
2. Connect the red line and the black line of the OT terminals to the positive pole and the negative pole of the battery
input MCB respectively, and connect the yellow-green line to the metal enclosure of the battery cabinet. Make sure
that the wiring of the red line, black line and yellow-green line should be laid side by side and be the same direction.
警告
危 险
Note
If the OT terminal does not match the connection terminals of the battery input MCB, cut the OT terminal and peel the battery
cable B to an appropriate length of copper core, and then connect the battery cable B to the battery input MCB.
