Emerson Liebert PSA Line-Interactive UPS 500-1500VA User Manual

The Shutdown feature allows the orderly shutdown of the operating system and the UPS in response 

to certain events, such as Low Battery.

To configure the Shutdown action:

• Check  (

✔

) the Enable Shutdown Action box. This is required for the action to operate.

• In  the  Operating System Shutdown area, check the Enable box to permit Liebert MultiLink 

to perform an orderly shutdown of the operating system. Use the arrows in the Delay boxes to 

specify the time lapse between an event’s occurrence and when the shutdown begins.

• The System Administrator can use the UPS Output Off feature to set up Liebert MultiLink to 

shut down the UPS after shutting down the host computer’s operating system. This feature is 

available only on certain UPS models. (A special cable may be required to support this feature on 

Contact Closure connections.)

• To set up the UPS Output Off feature, click on the Enable box, 
• Use the related Delay boxes to specify an additional delay (above and beyond the “Operating 

System Shutdown” delay) prior to turning off the UPS output.

• Enabling Auto reboot UPS output causes the UPS to restore power to the load (after a brief 

delay) after the output power has been turned off as a result of selecting the Enable check 

box. These features induce a controlled cycling of power to the critical load, eliminating the 

need to reset the UPS manually. This option is not available with Contact Closure.
Note: Input power to the UPS must be present before UPS output power can be restored. If 

the output has been turned off during a utility outage, the UPS output power will not be 

turned on until the input utility is restored.

• The Canceling Event will abort all actions initiated by Liebert MultiLink in response to the 

event being configured, except UPS Output Off (see NOTE above). See Table 14 for a list of 

Events with default canceling events.

• At any time, click on the Reset to Defaults button to revert to the factory defaults for this 

feature.

• To save settings, click on the MultiLink menu at the top of the window, then click on Save