Liebert AC4 7.2 Setup System - Overview, 7.3 Setup System

System and Control Options

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 AC4 has four digital input points that may be configured individ-

ually. These inputs may have a wide variety of Liebert or other manu-

facturers’ equipment connected.

To configure a digital input:

• From the Main Menu, use the arrows ↑↓ to choose System and

Control, then press Enter ↵ (see 7.1 - Login 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 13 shows the digital input features you may change, along with the default settings: you may

change t he name of the in put, de fine it as norm ally 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 AC4 responds to an alarm or event.

Use the steps following Table 13 to change the default settings for any digital input.

Table 13 Default settings - digital inputs

Feature Default Other Options

LABEL DEVICE_1 Any name (up to eight characters)

NORM OPEN/CLOSE NO (Normally open) NC (Normally closed)

ALARM/EVENT AL (Alarmable) EV (Event)

LATCHED L (Latched) / Y (Yes)* NL (Unlatched) / N (No)*

DELAY 00:01 (1 second) Any time (in minutes and seconds) from 00:00 to 99:59

* NOTE: Different abbreviations are used to designate a digital input as Latched or Unlatched as shown below.

Settings - Select Input Menu

(see Section7.3)

When configuring an input

(see Section7.3.4)

Unlatched NL (Not Latched) N (No, not latched)

Latched L (Latched) Y (Yes, latched)

Setup System Menu

> SETUP INPUTS

SETUP COMMON ALARM

SETUP ZONES

↑↓=NEXT ↵=SELECT

SETUP OUTPUTS

SETUP SYSTEM INFO

SETUP OPERATION

Select Input Menu

SELECT INPUT

> DEVICE_1 NO-AL-NL

DEVICE_2 NO-AL-NL

↑↓=NEXT ↵=SELECT

DEVICE_3 NO-AL-NL

DEVICE_4 NO-AL-NL