Emerson Liebert NXC User Manual page 28

Liebert NXC
 3-in 1-out, common source configuration
The factory default of this UPS is 3-in 3-out, common source configuration. Change the power distribution mode of the UPS to 3-in 1-out
according to the steps described in the following section Changing power distribution mode. Continue the following input and output
power cable connection and power-on commissioning after confirming that the change has been successful.
1. Confirm that the power distribution mode of the main UPS has been changed to 3-in 1-out according to the steps described
in the following section Changing power distribution mode.
2. As shown in Figure 3-7, attach the self-adhesive insulating film (accessory) on the copper shorting bar 10, and insert the
buckles into the corresponding holes on the copper shorting bar 10.
3. As shown in Figure 3-8, short connect U2, V2 and W2 terminals using the copper shorting bar 7, short connect the PE
terminals of the I/O terminal block of the UPS using the copper shorting bar 10 with insulating film, short connect U3, V3 and
W3 terminals using the copper shorting bar 5, short connect U1 and U2 terminals using the copper shorting bar 6, short
connect N1 and N2 terminals, and two N3 terminals using the two copper shorting bar 4.
User Manual 10H52188UM60 - Rev. 2 - 09/2012
Figure 3-6 3-in 3-out, split-bypass configuration cable connection
Buckle
Buckle
Assembling
Assembling
Figure 3-7 Attaching the insulating film to the copper shorting bar 10
Single UPS Installation And Commissioning
Warning
Copper shorting
Copper shorting
bar 10
bar 10
Insulating film
Insulating film
Completed status
Completed status
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