Emerson 10-30kVA Manuel D’Utilisation

The UPS internal batteries will be connected at the factory, EXCEPT the Anderson connections 

between the shelves and to the fuses.

Observe the battery cable polarity. Be sure that the battery connector is made with the cor-

rect polarity.

11. Refit all protective covers removed for cable installation

Based on your site’s specific needs, the UPS may require auxiliary connections to manage the battery 

system (external battery circuit breaker, battery temperature sensor), communicate with a personal 

computer or provide alarm signaling to external devices or for Remote Emergency Power Off (REPO). 

The monitor board, arranged for this purpose, is located on the rear of the operator access door. The 

main features are:

• Input and Output dry contacts signal (one pair of contacts of relay)
• Emergency Power Off control (EPO)
• Environmental parameter input interface
• User communication (for data setting and user background monitor)
• Intellislot™ interface
• Modem interface
• Temperature detect interface

Figure 6 shows the relationship and connection between the monitoring (U2) board and other boards 

in the UPS. 

The DC bus is live when this internal battery connection is made. This connection is to be 

performed ONLY by Liebert Global Services at startup.