Справочник Пользователя для Emerson AC4

The Liebert AC4 operation features allow you to set up a rotation 

sequence to alternate which devices are operating and which are 

placed on Standby, as well as test devices while in Standby mode and 

specify what to do when a Standby device goes into alarm as it is 

powered up. You may also specify delay times after an output changes 

state, directing the Liebert AC4 to wait before acknowledging inputs or 

turning an output on or off.
To change any operation features:

• 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 ↵.

• From the Setup System Menu, shown at right, use the arrows

↑↓

 to

 

choose Setup Operation and press Enter ↵.

• Use the steps following Table 18 to access any of the Setup Operation options.

Table 18 shows the default settings for operation options: automatic sequencing, standby testing, 

failed standby, hold delay and restart.
Table 18

AUTO SEQUENCING

OFF (Deactivated)

ON (Activated), 12h (Activated for 12-hour intervals)

STANDBY TESTING

OFF (Deactivated)

ON (Activated)

FAILED STANDBY

N (Deactivated)

Y (Activated)

HOLD DELAY

10:00 (No delay)

Any time (in minutes and seconds) from 00:00 to 99:59

RESTART

00:06 (No delay)

Any time (in minutes and seconds) from 00:00 to 99:59

SETUP INPUTS
SETUP COMMON ALARM
SETUP ZONES

↑↓=NEXT

↵

=SELECT

SETUP OUTPUTS
SETUP SYSTEM INFO

STANDBY TESTING OFF
FAILED STANDBY

N

↑↓=NEXT

↵

=SELECT

HOLD DELAY : 10:00
RESTART

: 00:06