Event Message Help Text

CB2 (S2) OPEN

Circuit Breaker 2 (for Source 2) Open

Circuit Breaker 2 is not closed. CB1 is only assigned to Source 2.

Check that the Circuit Breaker 2 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.

CB4 (S1 BYP) CLOSED

Circuit Breaker 4 (Source 1 Bypass Breaker) Closed

Circuit breaker 4 is not open. The input from Source 1 is bypassing the static transfer switch.

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.

CB5 (S1 BYP) CLOSED

Circuit Breaker 5 (Source 2 Bypass Breaker) Closed

Circuit breaker 5 is not open. The input from Source 2 is bypassing the static transfer switch.

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.

CB3 (OUTPUT) OPEN

Circuit Breaker 3 (Output breaker) Open

Circuit breaker 3 is not closed. This circuit breaker is assigned to the output load. The power flow to the load cannot flow through the static transfer switch.

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.

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Liebert POWER PROTECTION STATIC TRANSFER SWITCH manual CB2 S2 Open, CB5 S1 BYP Closed