Vertiv Liebert STS2 - Page 142

Vertiv™ | Liebert® STS2/PDU
™
User Manual | Rev. 6 | 10/2017 132
within acceptable parameters, touch the RESET button on the touchscreen. If you are accessing the unit from
a terminal, type CA and press RETURN on your keyboard.
This event was written to the Event Log, if so configured.
S2 OV
Source 2 Over Voltage.
The input voltage from Source 2 exceeded a set percentage of the nominal voltage, as set in the OV Setting
and OV Detection Delay setpoints configured under the User Settings. An S2 Fail alarm was also issued and
source transfer has been inhibited.
The load of the Liebert STS2/PDU has been transferred to Source 1.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the unit from a terminal,
type CA and press RETURN on your keyboard.
S2 UF/OF
Source 2 Under Frequency/Over Frequency
The frequency for Source 2 is running outside the acceptable operating range, as set in the Frequency Trip
Point under User Settings. An S2 Fail alarm was also issued and source transfer has been inhibited.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the unit from a terminal,
type CA and press RETURN on your keyboard.
S2 FAIL
Source 2 Failure
Source 2 has failed due to under voltage (UV), over voltage (OV) or running with an over or under frequency
(OF/UF).
This alarm is a companion to S2 UV, S2 UV (RMS), S2 OV and S2 OF/UF.
The load of the Liebert STS2/PDU has been transferred to Source 1.
Press SILENCE on the touchscreen to turn off the audible alarm, if so configured. If you are accessing the
Liebert STS2/PDU system from a terminal, type SH and press RETURN on your keyboard to turn off the
audible alarm.
This event was written to the Event Log, if so configured.
The alarm has triggered a message to be sent to the modem, if so configured.
If configured to be a latching alarm, press RESET on the display. If you are accessing the unit from a terminal,
type CA and press RETURN on your keyboard.