Chapter 2 Single UPS Installation And Commissioning 19
Liebert
®
ITA 16kVA And 20kVA UPS User Manual
Figure 2-21 Label
Changing power distribution mode
Note
This product is compatible with 3-in 3-out and 3-in 1-out, factory default: 3-in 3-out. Change the format according to the following
steps if you need to change the power distribution mode.
From 3-in 3-out to 3-in 1-out
1. Remove all the copper shorting bars 3 shown in Figure 2-16 of the 3-in 3-out system; connect the main input
cables only. It is prohibited to connect the bypass input cables, output cables and battery cables, as shown in
Figure 2-22.
Figure 2-22 Main input
2. Remove the EPO jumpers of the dry contact port 4 (see Figure 6-2 and Table 6-1).
3. Power on the system. Set the system to ‘Single’ through the LCD menu ‘Settings’ -> ‘3 Phase Output or 1 Phase
Output’ (default password: 12345), and power off the system completely, then power on the system again, enter this
menu to confirm that the setting is valid.
4. Power off the system completely, and restore the EPO jumpers of the dry contact port 4, and remove the main
input cable.
From 3-in 1-out to 3-in 3-out
1. Remove all copper shorting bars shown in Figure 2-19 and Figure 2-20 of the 3-in 1-out system, connect the main
input cables only. It is prohibited to connect the bypass input cables, output cables and battery cables, as shown in
Figure 2-22.
2. Remove the EPO jumpers of the dry contact port 4 (see Figure 6-2 and Table 6-1).
3. Power on the system. Set the system to ‘Three’ through the LCD menu ‘Settings’ -> ‘3 Phase Output or 1 Phase
Output’ (default password: 12345), and power off the system completely, then power on the system again, enter this
menu to confirm the setting is valid.
4. Power off the system completely, replace the EPO jumpers of the dry contact port 4, and remove the main input
cables.
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