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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:
Log In and Choose Setup System
• 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 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 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 Section 7.3)
When configuring an input
(see Section 7.3.4)
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