American Power Conversion 250 A manual Alarm Beeper, Clearing latched alarms, Fuel Alarm Limits

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Alarms

Fuel Alarm Limits	Low Fuel Alarms:
	• Percent Fill: If the amount of fuel as a percentage falls below this value, an alarm
	condition exists (see “Fuel monitoring/runtime calculation” on page 9 for more
	information).
	• Runtime: If the estimated runtime falls below this value, an alarm condition
	exists (see “Fuel monitoring/runtime calculation” on page 9 for more
	information).
Other Limits	Other Limits:
	• Frequency: If the frequency is outside this range, an alarm condition exists.
	• Alarm Delay: Before an output alarm condition officially exists, the specified
	limit must be exceeded for this amount of time (in seconds). The advantage of the
	delay is that it filters out short alarm conditions, which are normal in ATS
	operation. For example, when utility power is shut off, the ATS will interpret this
	as a low-voltage condition; however, once the generator begins operation, this
	alarm is meaningless. An Alarm Delay of more than 15 seconds may prevent
	display of the low-voltage alarm in this example. The Alarm Delay applies to all
	Voltage, Loading, Frequency, and Runtime limits.

Alarm Beeper

Once the alarm beeper sounds, it will continue to beep every 30 seconds. Touching any button on the ATS display interface will de-activate the beeper. Use this menu option to turn Off the beeper so that it never sounds when an alarm occurs, or turn On the beeper after you have turned it off. The default is On.

Clearing latched alarms

When an alarm is present, the Alarm LED on the ATS display interface is lit red. To clear latched alarms, you must acknowledge them differently than other alarms. The following are considered latched alarms:

•Test Complete-Failed: The system has failed a self-test.

•Gen Start Failure: The generator failed to start.

To clear a latched alarm and turn off the LED, choose the Clr Latched Alarms option on the Alarm/Event Log menu of the Alarms screen. You can also clear latched alarms by resetting automatic operation on the ATS. Set the Automatic Operation switch to Disable () and then back to Enable ().

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44	InfraStruXure Power Generation System

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Contents Operation Page Audience How to find updates to this manualAbout This Manual Companion manualsPage Contents Display Interface Communication Configuration Customizing and Updating the ATS Specifications Page Safety symbols used in this manual Cross-reference symbols used in this manualOverview Wire sizing Installation Total power off procedureOperating environment Page InfraStruXure Power Generation System OverviewHow the InfraStruXure Power Generation System OperatesGenerator start sequence Generator cool-downOpen and closed transfers Fuel monitoring/runtime calculation Page Smart Distribution Panel with ATS Front view, door closedFront view, door open  The automatic operation Control panel is used to setInstallation Manual for instructions ATS panel board, left sideATS panel board, right side Motorized switches ATS Component DetailsAutomatic operation control panel User connection plate When the EPO Arm/Test rocker is in the Test ATS monitoring unitATS label kit Operation Automatic OperationAutomatic Operation Problem-loss of automatic operation Emergency Manual Operation How to power the load from the generator Set the ATS Automatic Operation switch to DisableEmergency Manual Operation How to return to powering the load from utility Press Total Power Off Total Power Off Display Interface Top-level status screens Top-level menu screenPassword-protected screens Navigating through screensLoad-Meter Total Load by PhasePower Factor Total Load SummaryATS/Voltage ATS PositionS1-Utility S2-Generator ATS Setup ATS/Voltage Generator Generator StatusOperating Settings Gen Output AdjustManufacturer Data Testing View Test LogRun/View Test Test Schedule Test DurationHow a test occurs Reset Reset AllStats Alarm/Event Log AlarmsView Active Alarms Alarm SetupFuel Alarm Limits Alarm BeeperClearing latched alarms Other LimitsSystem/Network ConfigSystem Password Date/TimePage Firmware Updates Electrical ConfigFactory Defaults Reset 100% Fuel LevelPage InfraStruXure Manager ATS Management OptionsOverview Network management interfacesConfiguring the InfraStruXure Manager Connect the ATS to the InfraStruXure ManagerConfiguring the ATS Network Management Interface Connect the ATS to your networkConfiguration overview TCP/IP configuration methodsDevice IP Configuration Wizard Bootp & Dhcp configuration Option 43 = 01 04 31 41 50 43 where Local access to the control console Remote access to the control consoleControl console Choose Network from the Control Console menuHow to Access the ATS Network Management Interface Web interfaceTelnet and SSH SnmpFTP and SCP InfraStruXure Power Generation System Customizing and Updating the ATS How to connect contacts to the user interface board How to Connect an EPO Switch to the ATS EPO Test NC noContact Closure-Normally Open Problem Action Safety warnings How to Allow Easy Access to the ATS Display Interface Output distribution circuit breakers available from APC Part Number Description Height on PanelDetermine the configuration of the panel Circuit breaker adapter modules available from APCAllowed circuit breaker combinations Combination #1Combination #6 Preparing the breakers for installation T1 three-pole breaker requires no additional preparationParts and tools needed for installation procedures T1 three-pole breaker assemblyInstalling breakers on the ATS panel bus See also How to Download Firmware Updates From a local computerElectrical PhysicalInstallation and Wiring 208V 480V AWGEnvironmental CompliancePage Appendix Custom Installations If Source 2 is a Second UtilityInfraStruXure Power Generation System Index InfraStruXure Power Generation System InfraStruXure Power Generation System Page Page Page Radio Frequency Interference 990-1845C