Remote Inputs - GE 845 Instruction Manual

INPUTS
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Remote Inputs

4–130
The self-reset operating mode generates the output operand for a single evaluation of the
FlexLogic equations (i.e., a pulse of one protection pass). If the operand is to be used
anywhere other than internally in a FlexLogic equation, it will likely have to be lengthened
in time. A FlexLogic timer with a delayed reset time can perform this function.
EVENTS
Range: Enabled, Disabled
Default: Enabled
Figure 4-50: Virtual Inputs Scheme Logic
SETPOINTS
VIRTUAL INPUT 1
FUNCTION :
Disabled=0
Enabled =1
Virtual Input 1 to ON =1
Virtual Input 1 to OFF =0
SETPOINTS
VIRTUAL INPUT 1
TYPE:
Latched
Self-Reset
Remote inputs provide a means of exchanging digital state information between Ethernet-
networked devices supporting IEC 61850. Remote inputs that create FlexLogic operands at
the receiving relay are extracted from GOOSE messages originating in remote devices.
Remote input 1 must be programmed to replicate the logic state of a specific signal from a
specific remote device for local use. The programming is performed by the three settings
shown in the Virtual Inputs section.
The REMOTE INPUT 1 Name setting allows the user to assign descriptive text to the remote
input.
The REMOTE IN 1 Events setting helps in enabling whether an event has to be generated
whenever Remote input status is updated.
S
LATCH
Reset-
Dominant
R
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 4: SETPOINTS
FlexLogic Operands
VI 1 ON
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