GE D90 Plus - Automation Inputs and Outputs; Automation Virtual Inputs

CHAPTER 8: AUTOMATION AUTOMATION INPUTS AND OUTPUTS
D90
PLUS
LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL 461
SELECTOR 1 POS 4 .......... Selector 1 changed its position to 4.
SELECTOR 1 POS 5 .......... Selector 1 changed its position to 5.
SELECTOR 1 POS 6 .......... Selector 1 changed its position to 6.
SELECTOR 1 POS 7 .......... Selector 1 changed its position to 7.
SELECTOR 1 STP ALARMThe selector position pre-selected via the stepping up
control input has not been confirmed before the time out.
SELECTOR 1 BIT ALARMThe selector position pre-selected via the three-bit control
input has not been confirmed before the time out.
SELECTOR 2 ..................... The set of events shown above are available for selector
switch 2.
The figure shows the logic diagram for the selector switch.
Figure 389: Selector switch logic
Automation inputs and outputs
Three groupings of automation inputs and outputs are defined: physical (contacts), shared,
and virtual. Within these three groupings there are two types: analog and digital.
Automation virtual inputs
There are 128 virtual inputs that can be programmed individually to respond to input
signals from the front panel interface and communications protocols. All virtual input
operands are defaulted to off (logic 0) unless the appropriate input signal is received.
Automation virtual inputs can be paired as control outputs. See the DNP Number of Paired
Controls setting in the Communications chapter for information.
Select the Settings > Automation > Automation Inputs/Outputs > Virtual Inputs menu to
access the virtual input configuration settings.
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