Connecting Battery Cables - Liebert ITA UPS 16kVA User Manual

3. Connect the live line (main input phase A, phase B and phase C), N line, PE line respectively to the terminal mA,
mB and mC of the UPS I/O terminal block, shorted copper bars 4 of mN and bN terminals, and one screw hole of the
shorted copper bar 10.
4. Connect the shorted copper bar 8 to one end of the shorted copper bar 7 (see Figure 2-14), and connect the live
line (bypass input phase A) to the shorted copper bar 8.
5. Connect the bypass input N line to mN of the UPS I/O terminal block, and the shorted copper bar 4 of bN.
6. Connect the live line (output phase A), N line and PE line respectively to the shorted copper bar 5 of the UPS I/O
terminal block, shorted copper bars 4 of the two oN terminals, and the other screw hole of the shorted copper bar 10.
Before the commissioning engineer arrival, if the load is not ready for accepting the power supply, please take good care of the
safety insulation located at the end of the output cable.
After the I/O cables connection, you should find the label shown in Figure 2-15 on the UPS chassis protective cover
for convenient maintenance, and then tick '¥' at the right side of the 'AC OUTPUT' and 'BYPASS INPUT', according
to the actual conditions.

2.6.3 Connecting Battery Cables

If battery module is not selected, this product needs to be equipped with positive and negative batteries. Each group ranges from
15-cell to 20-cell, and 12V for each cell.
Connection procedures for battery cables are as follows:
1. Confirm that all UPS external I/O switches are open.
2. Connect the battery cables.
z Selected battery modules (4 pcs)
1) Take out a battery cable option from the battery module, insert the battery cable which marked with 'Battery
Module 1', 'Battery Module 2', 'Battery Module 3' and 'Battery Module 4' respectively into any battery port on the rear
panel of the four battery modules (see Figure 2).
2) Ground one end of the battery cable which marked with 'UPS PE'.
3) Connect the other end of the battery cable which marked with 'BAT +', 'BAT N', 'BAT -' respectively to the terminal
'Bat +', 'Bat N', 'Bat -' of the UPS I/O terminal block (see Figure 2-7).
4) Tighten the fixing screws on both battery port sides of the battery module through screwdriver, so as to prevent the
battery cable from loosing or coming off.
z Non-selected battery modules
Connect the external battery with terminal '+', 'N' and '-' respectively to the terminal 'Bat +', 'Bat N', 'Bat -' of the UPS
I/O terminal block (see Figure 2-7).
Figure 2-15 Label
Liebert ITA 16kVA/20kVA User Manual
Chapter 2 Installation
Note
Note
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