Emerson 60HZ, 480V user manual 2.2Control Cables, 2.2.1Monitor Board Features, Monitor board U2

Electrical Connections

2.2Control Cables

2.2.1Monitor Board Features

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)

•Liebert IntelliSlot® interface

•Modem interface

•Temperature detect interface

Figure 5 shows the relationship and connection between the monitoring (U2) board and other boards in the UPS.

Figure 5 Monitor board U2

U1

DSP Control

K1

Key & LED Board

M5

Auxiliary Power

U2

Monitor Board

M3

Parallel Logic

Board

X1

User Interface

Board

16