Setting Parallel Addresses; Connecting Parallel Cables; Connecting 1 + 1 Parallel Pod Cables - Liebert ITA UPS 16kVA User Manual

2.8.2 Setting Parallel Addresses

The parallel addresses for all the UPS singles in parallel system should be set. The parallel addresses can be set
through the DIP switch on the UPS front panel (see Figure 1-1). Remove the DIP switch protective cover, and set the
DIP switch according to Table 2-5. The parallel address must be unique for each UPS single.
Parallel addresses
DIP switch position
The default setting for DIP switch is'1', you can set the DIP switch to 2, 3 or 4. However, you should set the DIP switch position
according to the descriptions listed in Table 2-5. Otherwise, the UPS fault will be caused!

2.8.3 Connecting Parallel Cables

The parallel system provides the parallel cable options. Through the parallel ports (see Figure 1-2) on the UPS rear
panel, the parallel cables are connected in close-loop mode one by one. Taking the 3 + 1 parallel system for example,
the schematic diagram of the parallel cables connection is shown in Figure 2-19.

2.8.4 Connecting 1 + 1 Parallel POD Cables

Connecting 1 + 1 parallel POD cables includes: connecting cables between the UPS and 1 + 1 parallel POD and
connecting input and output cables of the 1 + 1 parallel POD.
Connecting cables between the UPS and 1 + 1 parallel POD
Connect the UPS1 terminal block (silk screen: UPS1) on the 1 + 1 parallel POD rear panel to the same silk screen
terminal on the UPS1
UPS2 terminal block (silk screen: UPS2) on the 1 + 1 parallel POD rear panel to the same silk screen terminal on the
UPS2 rear panel I/O terminal block using the one-to-one correspondence method.
1. When connecting cables, connect the UPS end at first, and then connect the 1 + 1 parallel POD end.
2. For kinds of system connection differences such as 3-in 3-out (common source configuration), 3-in 3-out (split-bypass
configuration), 3-in 1-out (common source configuration), 3-in 1-out (split-bypass configuration), refer to 2.6.2 Connecting The I/O
Cables.
Table 2-5 DIP switch settings
Parallel 1#
ON
DIP1 DIP2 DIP3 DIP4 DIP5
UPS1 UPS2
Parallel cable
Parallel
Parallel
port 1
port 1
Parallel Parallel
port 2 port 2
Parallel cable
Figure 2-19 Parallel cables connection schematic diagram (3 + 1 parallel system)
rear panel I/O terminal block using the one-to-one correspondence method. Connect the
Liebert ITA 16kVA/20kVA User Manual
Parallel 2#
ON ON
DIP1 DIP2 DIP3 DIP4 DIP5 DIP1 DIP2 DIP3 DIP4 DIP5
Warning
UPS3
Parallel
port 1
Parallel cable
Parallel
port 2
Parallel cable
Note
Chapter 2 Installation
Parallel 3#
ON
DIP1 DIP2 DIP3 DIP4 DIP5
UPS4
Parallel cable
Parallel
port 1
Parallel
port 2
21
Parallel 4#