CHAPTER 7: PROTECTION
PROTECTION INPUTS AND OUTPUTS
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
391
Seal-In
Range: any FlexLogic™ operand or shared operand
Default: as shown above
This setting selects an operand (virtual output, element state, contact input, or virtual
input) that will seal-in the contact output when asserted.
Voltage Threshold
Range: 20 to 250 volts in steps of 1
Default: 20
This setting specifies determines the level at which the Contact Op 1 VOn and Contact
Op 1 VOff operands function. It is only shown for contact outputs that have monitoring.
Events
Range: Enabled, Disabled
Default: Enabled
If this setting is “Enabled”, every change in the contact output state will trigger an event
in the sequence of events recorder.
Protection contact output actual values
Select the
Actual Values > Protection > Protection Inputs/Outputs > Contact Outputs
menu item to open the protection contact output actual values window.
Figure 332: Protection contact output actual values
The following actual values are available for all protection contact outputs.
Name
Range: up to 12 alphanumeric characters
This value displays the programmed
ID
for the corresponding protection contact output.
Status
Range: On, Off, VOn, VOff, IOn, IOff
This value indicates the logic state of the protection contact output.
Direct inputs
These settings specify how the direct input information is processed. Select the
Protection
> Protection Inputs/Outputs > Direct Inputs
menu item to open the direct inputs
configuration window.