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

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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.

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Contents AC4 MonitoringPage Table of Contents Setup System Setup Common Alarm 7.5 Setup System Setup Zones Appendix a Service Terminal Interface Setup MenuFigures Data Logs Methods of Viewing and Configuring the AC4Available Alarms IntroductionOperation LCD for configurationOutside Enclosure Overview Device RS232 Liebert Himod Typical ConfigurationDevice Liebert Challenger Controller Board Overview Controller board componentsLCD connector Connector RS232DIP switch 24VAC powerOutput LEDs Status LEDs Input LEDs LED IndicatorsLED indicators summary Typical Sequence Packing Contents Installation ConsiderationsInstallation Unpacking and Preliminary InspectionMounting the Panel Surface-Mounting the AC4Required tools Flush-Mounting the AC4 Connect Power to the AC4 Electrical connections to panelWiring specifications Wiring SpecificationsWiring and Connections Connecting Digital Inputs Connecting Digital Inputs and OutputsConnecting Liebert Environmental Units Connecting Digital OutputsSetting the Digital Output Jumpers Connecting Common Alarm OutputsRS232 Connector Digital output jumper settingsOverview of Menus Guide to AC4 functionsLCD Menu Overview Opening Screen OverviewMain Menu Overview View Status Options Clearing Active Alarms View Active AlarmsActive Alarms Active AlarmsAlarm log conditions View Alarm LogAlarm Log Alarm LogEvent log conditions View Event LogEvent Log Event LogViewing Additional Input Data View Input StatusInput Status Digital input statesViewing Additional Output Data View Output StatusOutput Status Digital output statesSilence Alarm & Backup LOG Files Service Terminal Interface Silence Alarm Service Terminal Interface onlyBack Up Log Files Service Terminal Interface only Silence Alarm & Backup Log Files Service Terminal Interface System and Control Options LoginLogin Valid characters for data entrySetup System menu Login ScreenSystem & Control menu Clear Alarms&Logs selected Clear Alarms/Logs menuSetup System Overview Setup System Setup InputsDefine Input as Normally Open or Normally Closed Define Input as Alarmable or EventChange Label Name of Input Delay Time Set Up Alarmable Inputs in Latched or Unlatched ModeSet Up Delay Time Latched / UnlatchedReset Common Alarm Setup System Setup Common AlarmChange to Reset Y or Not Reset N Message if too few devices entered Setup System Setup ZonesSet Up a Zone Message if too many devices enteredSetup System Setup Outputs Define Output as Normally Open or Normally ClosedConfigure Output for Loss of Power Fail-Safe Define Operating or Standby ModeEnable or Disable an Output Device in Alarm Status Set ModeChange the Password Setup System Setup System InfoChange Password Reset Password to the Factory Default AaaaSet Date & Time/Automatic Daylight Saving Time Setup Site IDSetup Site ID Set Date & TimeBackup and Upload Configuration File Back Up the Configuration File Upload the Configuration File Firmware Update Service Terminal Interface only Factory DefaultsFactory Defaults System and Control Options Setup Operation Menu Setup OperationSelect Setup Operation Setup System Menu Default settings operation featuresSet Interval & Start Time 1- to 99-Day Interval Turn Automatic Sequencing On or OffActivate / Deactivate Set Start Time Hour IntervalSpecify Failed Standby Response Turn Standby Testing On or OffChange Standby Testing Failed Standby responseSetup Operation Menu Specify Hold Delay TimeHold Delay Time Restart Delay TimeOverride Output Clear the Alarm Log Clear Alarms & LogsClear Active Alarms Clear the Event LogAC4 Specifications SpecificationsAppendix a Service Terminal Interface Comparison of Functions LCD and Service Terminal InterfaceConnecting to the Service Terminal Interface Specify COM Port Connection COM1 Port SetupCreate a Connection Settings tab Properties SetupAscii Setup Ascii Setup buttonConnect to the Service Terminal Interface Click on the file name for example, AC4.htView Status Overview Silence Alarm and Backup Log FilesSetup Menu Overview Main Menu For sample screens, seeMain Menu View Status MenusMain Menu View Active Alarms View Active AlarmsView Alarm Log View Alarm LogView Event Log View Event LogView Input Status View Input StatusView Output Status View Output StatusSilence Alarm Section A.5.1 Section A.5.2Backup Log Files Event Log File Back Up Alarm Log FileBackup Log Files Alarm Log File Back Up Event Log FileLogin Setup MenuLogin Menu Tips on Using the Service Terminal Interface Setup MenuSetup Menu See DescriptionSetup Inputs Setup InputsSetup Common Alarm Setup Common AlarmSetup Zones Setup ZonesSetup Outputs Setup OutputsChange Password Setup System InfoSetup System Info Setup Site ID Set Date & TimeBackup & Upload Configuration File Backup Backup & Upload Configuration File Upload Factory DefaultsFirmware Update Service Terminal Interface only Firmware UpdateAuto Sequencing Setup OperationSetup Operation Auto Sequencing Standby Testing Setup Operation Standby TestingSetup Operation Hold Delay Hold DelaySetup Operation Failed Standby Failed StandbyRestart Delay Setup Operation Restart DelayOverride Output Override OutputClear Alarms & Logs Clear the Alarm Log Clear Alarms & LogsClear Alarms & Logs Clear Active Alarms Clear Alarms & Logs Clear the Event Log Page Locations Technical Support/ServiceCompany Behind the Products Asia 23F, Allied Kajima Bldg
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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.

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