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Event Message Help Text
129
LOAD ON ALT SOURCE
STS2 load on the alternate source.
The static transfer switch is running on the alternate power source. Check the Event Log to determine the reason for the
transfer from the preferred source.
Another event has caused the system to transfer to the alternate source. The system returns the load to the preferred
source either automatically or manually, depending on how the system is configured.
In automatic reset mode, the STS2 automatically retransfers to the preferred source after the causal condition clears.
In manual reset mode, the system remains on the alternate source after the causal event clears until you select RESET
from the touchscreen, or enter CA (Clear Alarms) from a service terminal.
Pressing the RESET button to returns the unit to the preferred source. Ensure that the condition that triggered the
switch has been rectified before returning to the preferred source.
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.
AUTO REXFER INHIBIT
Automatic Retransfer Inhibited.
The system made five transfers from the preferred source to the alternate source in the last five minutes. As a result,
automatic retransfers back to the preferred source is now disabled.
To clear this alarm condition, assign the alternate source as the preferred source.
This alarm also is cleared if the unit transfers to the preferred source due to an alternate source AC volt failure (i.e., an
emergency transfer.)
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 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.
CB1 (S1) OPEN
Circuit Breaker 1 (for Source 1) Open
Circuit Breaker 1 is not closed. CB1 is only assigned to Source 1.
Check that the Circuit Breaker 1 switch is in the desired position.
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.