View Status Options

5.3View Event Log

In addition to alarms, the AC4 tracks other changes in the Event Log to assist users with verifying operational and troubleshooting problems. Events reflect changes in the status of an input that is defined as an event or the change of state of an output (i.e., manually forced ON or OFF). Other events may be informational, such as a user login. The Event Log contains up to 99 records of events, which are added as they occur.

To view the Event Log:

• From the Main Menu, use the arrows ↑↓ to choose View Status, then press Enter ↵.

• From the View Status Menu, use the arrows ↑↓ to choose View Event Log, then press Enter .

5.3.1Event Log

The Event Log screen displays up to 99 recent events. If the log con- tains any event records, the Event Log screen displays details for each event:

the event source (for example, DEVICE_1)

the status of an input or output (CONTACT CLOSED) or a brief description of the event (USER LOGIN)

the date and time the event occurred

Table 9 shows conditions that the event log records for inputs and outputs and in the panel itself.

Table 9

Event log conditions

 

SOURCE

 

Digital Input

Digital Output

Panel

CONDITIONS

EVENT

STARTED

ALARMS CLEARED

RECORDED

NORMAL

ON

ALARM SILENCED

 

 

 

OFF

NO STANDBY OUTPUTS

 

 

 

HW FORCE ON

AVAILABLE

 

 

 

AUTO

NO STANDBY TESTING

 

 

 

FORCE ON

DEVICE AVAILABLE

 

 

 

FORCE OFF

TIME & DATE SET

 

 

 

RESTORED

USER LOGIN

If there are no records in the log, the screen displays the message:

NO EVENTS

Viewing Additional Screens

There may be up to 99 records of event data.

To view additional records, use the arrows ↑↓ .

To return to the previous screen, press the ESC key.

Main Menu

>VIEW STATUS SYSTEM AND CONTROL

↑↓ =NEXT

=SELECT

View Status Menu

VIEW ACTIVE ALARMS

VIEW

ALARM LOG

> VIEW

EVENT

LOG

VIEW

INPUT

STATUS

VIEW

OUTPUT STATUS

Event Log

> EVENT RECORD 99/99

SYSTEM

USER LOGIN

19-MAY-04 10:07:00

DEVICE_1 HW FORCE ON

CONTACT CLOSED

18-MAY-04 06:47:03

DEVICE_4 FORCE OFF

CONTACT OPEN

18-MAY-04 05:22:17

DEVICE_3 AUTO

CONTACT OPEN

18-MAY-04 04:32:11

DATE AND TIME SET

18-MAY-04 03:11:43

DEVICE_4 FORCE ON

CONTACT CLOSED

18-MAY-04 02:34:00

5.3.2Backing Up the Event Log (Service Terminal Interface only)

The event log is stored as a file in the AC4; it can hold no more than 99 records. When the log is full, the oldest records are deleted from the end of the file as new event records are added at the beginning.

You may back up the event log file to a remote computer using the Service Terminal Interface, as described in 6.2 - Back Up Log Files (Service Terminal Interface only).

To delete all records in the event log, see 7.10 - Clear Alarms & Logs.

20

Page 26
Image 26
Liebert AC4 user manual View Event Log, Event log conditions, Digital Input Digital Output Panel

AC4 specifications

The Liebert AC4 is a highly advanced cooling solution designed for critical environments, such as data centers and telecommunications facilities. As data demands rise and IT equipment generates significant heat, an effective cooling system is paramount to maintaining optimal performance and reliability. The Liebert AC4 stands out in this space, offering a blend of efficiency, flexibility, and innovative technology.

One of the main features of the Liebert AC4 is its adaptability to various configurations and applications. It can be deployed in both hot aisle and cold aisle containment setups, making it versatile for different data center designs. This flexibility allows facilities to implement cooling strategies that align perfectly with their specific layouts and operational requirements.

The Liebert AC4 employs cutting-edge, variable-speed fans that enhance energy efficiency. These fans adjust their speed according to the cooling load, ensuring that the system operates at peak efficiency while significantly reducing energy consumption. This feature is essential in critical environments, where minimizing operational costs is often as important as maintaining optimal temperatures.

In addition to energy-efficient cooling, the Liebert AC4 integrates advanced monitoring and control technologies. With built-in intelligence and compatibility with the Liebert SiteScan monitoring system, users can ensure real-time visibility into their cooling operations. This monitoring capability enables data center managers to make informed decisions and swiftly address any cooling anomalies, minimizing the risk of overheating and downtime.

Furthermore, the system is designed to be easy to install and maintain, reducing downtime during setup and upkeep. The modular design allows for scalability, enabling organizations to expand their cooling capabilities as their needs grow.

The Liebert AC4 also features a robust construction that enhances reliability and durability, making it an ideal choice for environments where equipment uptime is critical. Its streamlined design not only optimizes airflow and cooling distribution but also contributes to aesthetic considerations in professional settings.

In conclusion, the Liebert AC4 combines efficiency, versatility, and advanced technologies to deliver a reliable cooling solution for modern data centers and critical facilities. Its variable-speed fans, flexible configurations, and advanced monitoring capabilities position it as a leader in the competitive field of cooling solutions, ensuring that critical equipment remains operational and efficient. Organizations looking to enhance their cooling strategies will find the Liebert AC4 to be an invaluable asset in today’s fast-paced digital landscape.