Emerson 40-200KVA Mode D'Emploi

The MultiPort 4 card provides four sets of voltage-free contact closures for remote monitoring of 

alarm conditions UPS operation On Battery and Low Battery condition. A typical application is to 

allow a maximum of four computer systems to simultaneously monitor the status (e.g., utility power 

failure-low battery) of a single UPS.
This card is supported in any of the three Liebert

®

 IntelliSlot

®

 bays on the Liebert NX

™

.

The function of LBS is to keep the output of two independent UPS systems (single unit or multiple 

unit) in synchronization even when the two systems are operating in different modes (bypass/

inverter) or on batteries. It is usually used with a Static Transfer Switch connected to the critical load 

to achieve dual bus configuration.

Status and alarm conditions are available on an optional remote alarm monitor (RAM) panel, which is 

driven by volt-free alarm status contacts (from an optional relay alarm board).

1. Open the UPS door.
2. The dust filters are behind the door. For each filter, there is a bracket on either side holding the 

dust filter in place, as shown in Figure 71.

3. Remove one bracket and loosen the other. The second bracket need not be removed.
4. Remove the old filter and replace with the new filter.
5. Reinstall the bracket that was removed and tighten the other bracket.

1

Low Battery

2

Not  Used

3

Not  Used

4

Not  Used

5

Not  Used

6

Not  Used

7

Low Battery Common

8

Utility Fail Common

9

Utility Fail

 

Bracket

Sems screw

Bracket