Emerson Liebert Remote Monitoring Panel User Manual Page 9

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Introduction
1Liebert
®
Universal Monitor
1.0 INTRODUCTION
Extensive capabilities can put the Liebert Universal Monitor at the heart of your protective network.
The Liebert Universal Monitor employs local alarming and remote paging services to keep personnel
on-site and at remote locations apprised of the status of equipment.
The panel can interface with any device that closes an electrical contact or has a 4-20 mA signal. To
improve process efficiency and troubleshooting, the panel tracks data in three types of logs: alarm,
event and trend. The Liebert Universal Monitor has a local LCD interface and a remote dial-up
interface.
Further, the Liebert Universal Monitor can report ambient conditions that might adversely affect the
facility or equipment and also can report alarms and other events, as well as initiate responses to
reduce or prevent damage.
When an alarm condition arises, the Liebert Universal Monitor displays alarm information and
sounds an audible alarm; if configured, the panel also sends pager notifications and turns connected
devices on or off. See 1.11 - Typical Sequence for a more detailed example.
1.1 Methods of Viewing and Configuring the Liebert Universal Monitor
The Liebert Universal Monitor features remote access through two interfaces that allow users to
configure the panel, silence alarms, back up logs, and perform many other functions to keep a large or
small operation running smoothly and safely.
LCD—liquid crystal display on the front of the panel
Service Terminal Interface—accessible via computer connected directly through an RS232
port or remotely through the Liebert Universal Monitor’s onboard modem
These interfaces permit easy access and configuration of the Liebert Universal Monitor, allowing
users to view data, silence alarms and have full access to information stored in the panel, including
logs of alarms and events.
One more interface—Liebert’s SiteScan
®
Web enterprise monitoring system—is primarily for
monitoring, though Liebert SiteScan also provides some configuration functions.
1.2 Data Logs
The three types of data logs—alarm history, event history and trend data of analog sensor readings—
can be viewed on the LCD on the front of the Liebert Universal Monitor and downloaded through
onboard communications ports.
1.3 Optional Features
An optional Expansion Board, which can be purchased separately, allows you to connect an additional
16 digital inputs and eight digital outputs to the Liebert Universal Monitor.
An optional Transformer Module, available only in the large enclosure, converts 115VAC or 230VAC
to 24VAC.
1.4 Available Alarms
The alarms available with the Liebert Universal Monitor are:
Discrete input alarm (for each digital input)
•High setpoint
Low setpoint
Battery unplugged
Low battery
Loss of power
Check battery
Internal modem fault
Two additional alarms are available with the optional Expansion Board:
Expansion board loss of communications
Expansion board restore of communications
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