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Operation
20 Smart Distribution Panel with ATS
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 need to reset automatic operation
after the event that caused this condition has been corrected. (See page 21 for a detailed description
of the events that might lead to this condition.) You can also clear certain alarms by resetting
automatic operation on 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 red, you must reset automatic operation on the
generator to clear the alarm (the Shutdown LED on the generator control panel will also be 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 EPO, contact APC service (see
“Service” on page 82). To reset automatic operation on the generator:
Set the
/Manual/Auto switch on the generator control panel to
. Press the Fault
Acknowledge/Reset button on the generator control panel.
Set the
/Manual/Auto switch on the
generator control panel back to Auto.