American Power Conversion AP9215 - Manual (Page 9)

7
Control
n UPS On/Off
n Do Self Test – UPS verifies proper system operation by briefly
powering the attached load from battery.
n Simulate Power Fail – causes UPS signaling port to immediately
indicate that the AC line has failed. This may initiate an orderly
server shutdown sequence if the appropriate cable and software
drivers are used.
n Graceful Reboot – initiates an orderly server shutdown and re-
start sequence if the appropriate cable and software drivers are
used. The sequence is:
1. The UPS signaling port indicates that the AC line has failed
and that the UPS battery is low. (Server will quickly begin
shutdown if so configured.)
2. After the Low Battery Duration time plus the Shutdown De-
lay time (user settable parameters in Setup:Shutdown) the
UPS will turn off for the Return Delay time (user settable pa-
rameter in Setup:Shutdown) then come back on unless: (1)
the input AC line voltage is out of tolerance or (2) the battery
capacity is below the Return Battery Capacity (user settable
parameter in Setup:Shutdown).
n Graceful Turn Off – same as Graceful Reboot above except that
the attached load remains off until turned on by the user via the
Control:Turn Load ON
command.
n Start/Stop Runtime Calibration – causes UPS to run on battery
until the battery(s) is(are) discharged to approximately 25% of
capacity. Data recorded during this time improves the accuracy
of the Runtime estimate which the UPS reports in the Status
screen. Recommended testing interval: once per month.
n UPS into/out of Bypass (Matrix and Symmetra only) — When
bypassed, power to the attached load is being supplied through
the UPS’s filtering and surge suppression circuits directly. The
UPS will not power the loadfrom the battery in the event of a
power failure. This is generally used during maintenance on
modular UPSs.