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Appendix A.5.5 Single Liebert FS on UPS DC Bus
The following Liebert FS Software Control Parameters must be set when a single Liebert FS is con-
nected alone on the DC bus of the Liebert HiPulse UPS system.
Instructions on setting these parameters on the Liebert FS are found in 6.5.3 - Control Parameters
Setup at Initial System Startup.
Appendix A.5.6 Single Liebert FS in Parallel with Battery Pack on UPS DC Bus
The following Software Control Parameters must be reset when the Liebert FS is connected in paral-
lel with a battery pack on the DC bus of the Liebert Hipulse UPS system.
Instructions on setting these parameters on the Liebert FS are found in 6.5.3 - Control Parameters
Setup at Initial System Startup.
NOTE
The Software Control Parameter values specified below must be used unless otherwise
specified by the Liebert-certified service technician at Initial System Startup.
Table 29 Liebert FS Software Control Parameter settings
Liebert FS Software Control Parameter Setting
Charge Voltage 436 VDC
Regulation Voltage 426 VDC
Vreg Delta 0 VDC
Maximum Charge Current See Table 30
Charge Amps/Volts See Table 30
Table 30 Liebert FS Software Control Parameters varying with UPS size
UPS Output Rating (kVA) 80 120
Liebert FS Maximum Charge Current (A) 39 50
Liebert FS Charge Amps/Volts (A/V) 4 5
NOTE
The Software Control Parameter values specified below must be used unless otherwise
specified by the Liebert-certified service technician at Initial System Startup. These values may
require adjustments due to the battery type.
Table 31 Liebert FS Software Control Parameter settings
Liebert FS Software Control Parameter Setting
Charge Voltage 436 VDC
Regulation Voltage 426 VDC
Vreg Delta 0 VDC
Maximum Charge Current See Table 32
Charge Amps/Volts See Table 32
Table 32 Liebert FS Software Control Parameters varying with UPS size
UPS Output Rating (kVA) 80 120
Liebert FS Maximum Charge Current (A) 39 50
Liebert FS Charge Amps/Volts (A/V) 4 5
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