Emerson 540VDC manual Liebert FS Software Control Parameters, See Table

UPS Interconnection Kits

Appendix A.3.2 Status/Control Connections - Liebert Npower UPS Interconnection Kit

The status/control interface is the Liebert Npower Battery Information Board (BIB). The connection of the BIB is described in Figure 140 - Control wiring diagram—Liebert FS - optional electri- cally operated circuit breaker Liebert Npower units. Refer to this drawing to ensure that the proper connections are performed. In case multiple Liebert FS units are connected to the same UPS DC bus, refer to Figure 132 - Control wiring diagram, Liebert FS power rack system in paral- lel for capacity to perform the Status/Control connections between each Liebert FS.

This interconnection kit includes Status/Control Connections that enable transfer of signals between the Liebert FS system(s) and the UPS system such as:

•Circuit breaker status (closed/open); and

•Undervoltage relay coil excitation voltage.

The recommended gauge for status/control connection wires is 16 AWG - 600VDC (1.3mm2 wire sec- tion). Wire size and installation must comply with all applicable local, regional and national regula- tions (e.g., National Electric Code for USA).

Appendix A.3.3 UPS Configuration - Liebert FS and Liebert Npower

To optimize the integration between the Liebert Npower UPS system and the Liebert FS, some parameters must be checked on the UPS system:

•The UPS rectifier walk-in time must be set at a value as low as possible. Contact your Liebert rep- resentative if your unit has received the upgraded board that permits the setting of “rectifier walk-in time” lower than standard.

•Ensure that the “auto battery self test” has either been disabled or upgraded to accommodate Liebert FS integration.

Appendix A.3.4 Liebert FS Configuration - Single Liebert FS Unit

The following Software Control Parameters must be set when the Liebert FS is connected to the DC bus of the Liebert Npower UPS system.

NOTE

The Software Control Parameter values specified below are recommended. These values may require adjustments due to the battery type. These must be used unless otherwise specified by the Liebert-certified service technician at initial system startup. Instructions to set these parameters on the Liebert FS are in 6.5.3 - Control Parameters Setup at Initial System Startup.

Table 23 Liebert FS Software Control Parameters

Liebert FS Software	Setting
Control Parameter
Charge Voltage	530VDC
Regulation Voltage	520VDC
Vreg Delta	0VDC
Maximum Charge Current	See Table 24
Charge Amps/Volts	See Table 24

Table 24 Liebert FS Software Control Parameters varying with UPS size

UPS Output Rating (kVA)	30	40	50	65	80	100	130
Liebert FS Maximum Charge Current (A)	11	15	19	25	31	38	50
Liebert FS Charge Amps/Volts (A/V)	0.8	1.0	1.3	1.7	2.1	2.6	3.4

91	DISCONTINUED
	PRODUCT