Liebert Static Transfer Switch 2 Installation, Operation & Maintenance Manual page 141

100-1000 amp, 50-60 hz
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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.
OUTPUT UV
Output Undervoltage
The voltage being supplied to the load has dropped below the acceptable nominal voltage. Check the input voltage
from both sources.
This event and the system status surrounding it have been written to a History Log if the History Logs were not already
full. This event was also written to the Event Log, if so configured.
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 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.
INPUT CONTACT #1
Input Contact Isolator #1
Occurrence of the indicated external event has been detected by Input Contact Isolator #1 of the Open Comms Digital
Input option board.
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 event, with its assigned name, 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.
INPUT CONTACT #2
Input Contact Isolator #2
Occurrence of the indicated external event has been detected by Input Contact Isolator #2 of the Open Comms Digital
Input option board.
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 event, with its assigned name, 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.
INPUT CONTACT #3
Input Contact Isolator #3
Occurrence of the indicated external event has been detected by Input Contact Isolator #3 of the Open Comms Digital
Input option board.
Event Message Help Text
129

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