Liebert Static Transfer Switch 2, Installation, Operation & Maintenance Manual

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Event Message Help Text 123
Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2
system from a terminal, type
SH and press RETURN on your keyboard to turn off the audible alarm.
The alarm is latched and must be reset after the voltage returns to the nominal voltage. If the Reset option is not
configured for AUTO (automatic reset), then the reset action must be done manually. When the voltage is within
acceptable parameters, touch the RESET button on the touch screen. 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 set points configured under the User Settings. An S2 Fail alarm was also issued and source transfer
has been inhibited.
The load of the STS2 has been transferred to Source 1.
Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2
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 touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2
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 STS2 has been transferred to Source 1.
Press SILENCE on the touch screen to turn off the audible alarm, if so configured. If you are accessing the STS2
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.