APC NBRK0550 User Manual

c. Enter the appropriate values for the Button Relay action.

d. Click OK to add this output action to the list of available output actions.

•  Switch Relay actions cause the relay device to switch from its current state (On or Off) to its 

alternate state. Once switched, the relay remains in the new state until another switch action 
changes its state again. To create a Switch Relay action:

a. Select Switch Relay and click OK.

b. The Add Switch Relay Output window features the following fields and controls:

c. Enter the appropriate values for the Switch Relay action.

d. Click OK to add this output action to the list of available output actions.

Default relay output 
label

The label used, by default, for any new output types 
added using this custom output definition.

To modify a label, see “Output control sensor 
settings” on page 57.

Unpressed value

The text describing the relay in its unpressed state.

Pressed value

The text describing the relay in its pressed state.

Active time (seconds)

The time in seconds that the relay remains in a 
pressed state before reverting to the unpressed state.

Button contact type

Specifies whether the relay is in an on or off state 
when pressed.

Relay output type 

The name of the custom output action definition. 
Once defined, the Output Type label appears only in 
the Relay Output Type selection list when 
specifying output control external port settings. 

Default relay output 
label

The label used, by default, for any new output types 
added using this custom output definition.

To modify a label, see “Output control sensor 
settings” on page 57.

On value

The text that describes the relay in its on state.

Off value

The text that describes the relay in its off state.

Switch initial state

The state (On or Off) of the relay at the time the 
output action is assigned. 

This is also the state to which the switch is set when 
the appliance is turned on, regardless of what state 
the switch was in when the appliance was turned off.