Connecting Battery Cables - Liebert ITA 6kVA User Manual

2. Connect the mains input live line (phase A, phase B and phase C), N line and PE line respectively to the input live
line terminal (U), input live line terminal (V), input live line terminal (W), input neutral line terminal and input ground
line terminal of the UPS I/O terminal block. The input live line terminal (U1) is not connected, as shown in
Figure 2-16.
3. Connect the output L line, N line and PE line respectively to the output live line terminal, output neutral line terminal
and output ground line terminal of the UPS I/O terminal block, as shown in Figure 2-16.

2.3.2 Connecting Battery Cables

External battery module connection principle diagram of the power distribution by user
The default battery number of UPS is 16-cell. The principle diagram is shown in Figure 2-17.
he DC battery MCB must be added between the battery string and UPS.
Notes
Before connecting the battery cable, check that:
1. The battery string comprises batteries of the same manufacturer, same model, and same use state.
2. The battery number complies with the UPS specifications, that is, sixteen 12V batteries are connected in series.
3. Confirm with a voltmeter that the battery string voltage is about 200Vdc after the series connection.
1. Non-authorized personels are prohibited from connecting the battery cable.
2. It is prohibited to reverse the positive pole and negative pole of the battery.
3. Different UPSs cannot use the same battery module. Otherwise, the UPS will be damaged.
4. The length of the battery cable configured with standard UPS is 0.5m, and that of the long-time delaying UPS is 1.5m. It cannot
be extended unlimitedly (” 3m).
5. Shut down the UPS before replacing the battery and connecting the battery cable.
Battery cable connection for standard UPS
Standard UPS provides a battery cable A, which is used to connect the battery module with the UPS, as shown in
Figure 2-18.
Figure 2-16 Cable connection for 3-in 1-out
First cell Second cell
Figure 2-17 Battery module connection principle diagram
Liebert ITA 6kVA UPS User Manual
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Chapter 2 Single UPS Installation And Commissioning
Paralleled address
Control port
Warning
Third cell Sixteenth cell
Note
+
-
Input switch Battery port
230/400Vac-40A 192Vdc 27A
PE
N A B C PE PE L N
Input Output
Bat
UPS
Bat
9