User Manual 10H52188UM51 - Rev. 1 - 09/2011
37
Liebert NXC
Parallel UPS Installation and Commissioning
3.5.5
Setting Parameters Of Double Bus System
Take the double bus system formed by 1 + 1 parallel system for example, set ‘System Configuration’ to ‘Parallel’, ‘Parallel
requisite units’ to ‘1’, ‘Parallel Redundant Units’ to ‘1’. For the master system, set ‘LBS Function’ to ‘MASTER’. For the slave
system, set ‘LBS Function’ to ‘SLAVE’. Ensure that the setting for ‘3 Phase Output or 1 Phase Output’ of each single UPS in the
double bus system is same, as shown in Figure 3-10.
ITA 016 kVA
Settings
Unit 1#
Enabled Disabled
System Configuration Parallel
Parallel requisite units 1
ESC
Disabled
Shared Battery
1 2 3 4
Single Parallel
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ITA 016kVA
Settings
Unit 1#
0 1 2 3
ECO Mode Normal
Output frequency Level 50Hz
ESC
1
Parallel Redundant Units
Normal ECO
50Hz 60Hz
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ITA 016kVA
Settings
Unit 1#
200 208 220 230 380 400 415 480
LBS Function MASTER
Command password
ESC
380V
Output Voltage Level
NONE SLAVE MASTER
*****
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ITA 016kVA
Settings
Unit 1#
YDN23 Velocity
3 Phase Output or 1 Phase Output Three
ESC
YDN23
Protocol
Three Single
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Figure 3-10 Setting interface
NXC 20kVA
NXC 20kVA
NXC 20kVA
NXC 20kVA
