American Power Conversion 250 A manual Problem-loss of automatic operation

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Automatic Operation

Problem—loss of automatic operation

Typically, the Not In Automatic Operation LED tracks the state of the Automatic Operation switch (e.g., the LED is lit when the Automatic Operation switch is in the Disable position). If the Not In Automatic Operation LED is lit while the Automatic Operation switch is in the Enable position, check messages on the display interface to determine which of these conditions exist:

1.The ATS unsuccessfully attempted to actuate either the Source 1 or Source 2 switch. This identifies the existence of one of the following situations:

The Source 1 switch cannot turn ON (closed)

The Source 1 switch cannot turn OFF (open)

The Source 2 switch cannot turn ON (closed)

The Source 2 switch cannot turn OFF (open)

When the ATS cannot actuate a switch, it will attempt to actuate the switch several more times before discontinuing further attempts. There are two causes of this condition:

The load is receiving power from the utility, and the Source 1 switch trips.

When the Source 1 switch trips, the ATS will try to reclose the switch. If the switch cannot be closed, the ATS will start the generator and then close the Source 2 switch. The load will be powered by the generator and the ATS will revert to Not in Automatic Operation mode until it is reset (see page 20).

The load is receiving power from the generator, and the Source 2 switch trips.

When the Source 2 switch trips, the ATS will try to reclose the switch. After several attempts, one of two things will happen depending on whether utility power is available:

If utility power is not available, the generator will continue to run until utility power becomes available. Once utility power is available, the ATS will switch to the utility and turn off the generator. The utility will supply power to the ATS, and the ATS will remain in Not in Automatic Operation mode until automatic operation is reset (see page 20).

If utility power is available, the ATS will switch to the utility and turn off the generator. The utility will supply power to the ATS, and the ATS will remain in Not in Automatic Operation mode until automatic operation is reset (see page 20).

2.The data center EPO switch that is connected to the ATS EPO interface was engaged.

When the data center EPO is engaged, the Source 1 and Source 2 switches are tripped open. The generator’s emergency stop signal becomes engaged and the ATS is no longer supplying output power. The ATS immediately goes into Not in Automatic Operation mode and stays in this mode until the system is reset. To reset the system, disengage the data center EPO switch and reset automatic operation on the generator and on the ATS (see page 20).

InfraStruXure Power Generation System

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Contents Operation Page Companion manuals How to find updates to this manualAbout This Manual AudiencePage Contents Display Interface Communication Configuration Customizing and Updating the ATS Specifications Page Cross-reference symbols used in this manual Safety symbols used in this manualOverview Wire sizing Total power off procedure InstallationOperating environment Page Overview InfraStruXure Power Generation SystemSystem Operates How the InfraStruXure Power GenerationGenerator cool-down Generator start sequenceOpen and closed transfers Fuel monitoring/runtime calculation Page Front view, door closed Smart Distribution Panel with ATS The automatic operation Control panel is used to set Front view, door openATS panel board, left side Installation Manual for instructionsATS panel board, right side ATS Component Details Motorized switchesUser connection plate Automatic operation control panelATS monitoring unit  When the EPO Arm/Test rocker is in the TestATS label kit Automatic Operation OperationAutomatic Operation Problem-loss of automatic operation Emergency Manual Operation Set the ATS Automatic Operation switch to Disable How to power the load from the generatorEmergency Manual Operation How to return to powering the load from utility Press Total Power Off Total Power Off Display Interface Top-level menu screen Top-level status screensNavigating through screens Password-protected screensTotal Load Summary Total Load by PhasePower Factor Load-MeterATS Position ATS/VoltageS1-Utility S2-Generator ATS Setup ATS/Voltage Generator Status GeneratorGen Output Adjust Operating SettingsManufacturer Data View Test Log TestingRun/View Test Test Duration Test ScheduleHow a test occurs Reset All ResetStats Alarm Setup AlarmsView Active Alarms Alarm/Event LogOther Limits Alarm BeeperClearing latched alarms Fuel Alarm LimitsDate/Time ConfigSystem Password System/NetworkPage Reset 100% Fuel Level Electrical ConfigFactory Defaults Firmware UpdatesPage Network management interfaces ATS Management OptionsOverview InfraStruXure ManagerConnect the ATS to the InfraStruXure Manager Configuring the InfraStruXure ManagerConnect the ATS to your network Configuring the ATS Network Management InterfaceTCP/IP configuration methods Configuration overviewDevice IP Configuration Wizard Bootp & Dhcp configuration Option 43 = 01 04 31 41 50 43 where Remote access to the control console Local access to the control consoleChoose Network from the Control Console menu Control consoleWeb interface How to Access the ATS Network Management InterfaceSnmp Telnet and SSHFTP and SCP InfraStruXure Power Generation System Customizing and Updating the ATS How to connect contacts to the user interface board EPO Test NC no How to Connect an EPO Switch to the ATSContact Closure-Normally Open Problem Action Safety warnings How to Allow Easy Access to the ATS Display Interface Part Number Description Height on Panel Output distribution circuit breakers available from APCCircuit breaker adapter modules available from APC Determine the configuration of the panelCombination #1 Allowed circuit breaker combinationsCombination #6 T1 three-pole breaker requires no additional preparation Preparing the breakers for installationT1 three-pole breaker assembly Parts and tools needed for installation proceduresInstalling breakers on the ATS panel bus See also From a local computer How to Download Firmware UpdatesPhysical ElectricalAWG Installation and Wiring 208V 480VCompliance EnvironmentalPage If Source 2 is a Second Utility Appendix Custom InstallationsInfraStruXure Power Generation System Index InfraStruXure Power Generation System InfraStruXure Power Generation System Page Page Page Radio Frequency Interference 990-1845C