7.2 Setup System - Overview
The Setup System screen displays six options that allow you to configure input and output devices, the
common alarm, and a variety of system details, such as login password and system date and time:
• Setup Inputs
• Setup Common Alarm
• Setup Zones
• Setup Outputs
• Setup System Info
• Setup Operation
7.3 Setup System - Setup Inputs
The Liebert AC4 has four digital input points that may be configured
individually. These inputs may have a wide variety of Liebert or other
manufacturers’ equipment connected.
To configure a digital input:
Log In and Choose Setup System
• From the Main Menu, use the arrows to choose System and
Control, then press Enter (see Login on page41 for help).
• Enter your password at the Login screen.
• From the System and Control Menu, use the arrows to choose Setup System, then press Enter.
Select a Digital Input to Configure
• From the Setup System Menu, shown at right, use the arrows to choose Setup Inputs and press
Enter.
• From the Select Input Menu, choose an input—for example, Device_1—and press Enter.
Table 7.2 on the facing page shows the digital input features you may change, along with the default
settings: you may change the name of the input, define it as normally open or closed, and specify it as
alarmable or as an event.
• Alarmable inputs may be defined as either Unlatched or Latched.
• Event status allows you to monitor a digital input’s state—and use a change in state to initiate
an action through an output, if desired—without triggering an alarm. Events are always
Unlatched.
• You may also specify a time delay before the Liebert AC4 responds to an alarm or event.
Use the steps following Table 7.2 on the facing page to change the default settings for any digital input.
Vertiv | Liebert® AC4 User Manual | 44
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