American Power Conversion 250 A manual Automatic Operation

Automatic Operation

How to reset automatic operation on the ATS and on the generator

Resetting automatic operation on the ATS. If the Not in Automatic Operation LED is lit and the Automatic Operation switch is in the Enable position, you will need to reset automatic operation after the event that caused this condition is corrected (see page 21 for a detailed description of events that might lead to this condition). You can also clear certain alarms by resetting automatic operation at the ATS (see “Clearing latched alarms” on page 44 for more information).

To reset automatic operation on the ATS, set the Automatic Operation switch to Disable () and then back to Enable ().



Resetting automatic operation on the generator. If the ATS display interface reports a generator shutdown alarm and the Alarm LED is lit red, you must reset automatic operation on the generator to clear the alarm (the Shutdown LED on the generator control panel will also be lit red). Events that lead to this condition include engaging the data center EPO switch and engaging the E-stop button on the generator. If any EPO was engaged, the switch must be disengaged before automatic operation can be reset. If shutdown was not caused by an EPO, contact APC customer support (see the back cover of this manual). To reset automatic operation on the generator:

Set the /Manual/Auto switch on the generator control panel to .  Press the Fault Acknowledge/Reset button.  Return the /Manual/Auto switch to Auto.







20 InfraStruXure Power Generation System