S3 Logic Inputs; Description; Logic Inputs 1 To 16; Virtual Inputs - GE TRANSFORMER MANAGEMENT RELAY 745 Instruction Manual

5.5 S3 LOGIC INPUTS

5.5S3 LOGIC INPUTS
The are two types of digital inputs: Logic Inputs have physical terminals for connecting to external contacts; Virtual Inputs
provide the same function as logic inputs, but have no physical external connections. A setpoint defines the state of each in
Virtual Input in terms of "On" or "Off".
There are 16 each of logic and virtual inputs. The state ('asserted' or 'not asserted') of each logic or virtual input can be
used to activate a variety of predefined logic functions, such as protection element blocking, energization detection, etc. In
addition, any logic or virtual input can be used as an input in FlexLogic™ equations to implement custom schemes.
PATH: SETPOINTS S3 LOGIC INPUTS
LOGIC INPUT 1
[ENTER] for more
• INPUT 1(16) FUNCTION: Select "Enabled" if this logic input is to be used. Selecting "Disabled" prevents this logic input
5
from achieving the Asserted (or signaling) state.
• INPUT 1(16) TARGET: Selecting "None" inhibits target message display when the input is asserted. Thus, an input
with target type "None" never disables the LED self-test feature since it cannot generate a displayable target message.
• INPUT 1(16) NAME: Press
character at a time with the
• INPUT 1(16) ASSERTED STATE: Select "Closed" as when connected to a normally open contact (where the signaling
state is closed). Select "Open" when connected to a normally closed contact (where the signaling state is open).
PATH: SETPOINTS S3 LOGIC INPUTS
VIRTUAL INPUT 1
[ENTER] for more
• INPUT 1 FUNCTION: Select "Enabled" if this virtual input is to be used. Selecting "Disabled" prevents this virtual input
from achieving the 'Asserted' (or signaling) state.
• INPUT 1 TARGET: Selecting "None" inhibits target message display when the input is asserted. Thus, an input whose
target type is "None" never disables the LED self-test feature since it cannot generate a displayable target message.
• INPUT 1 NAME: Press
ter at a time with the
• INPUT 1 PROGRAMMED STATE: Select "Asserted" to place the virtual input into the signaling state; likewise, select
"Not Asserted" to place it into the non-signaling state.
5-38
Courtesy of NationalSwitchgear.com
LOGIC INPUTS
ð
INPUT 1 FUNCTION:
ENTER
Disabled
ESCAPE
INPUT 1 TARGET:
ESCAPE
Self-Reset
MESSAGE
INPUT 1 NAME:
ESCAPE
Logic Input 1
MESSAGE
INPUT 1 ASSERTED
ESCAPE
STATE: Closed
MESSAGE
to edit the login input name. The text may be changed from "Logic Input 1" one
ENTER
/ keys. Press
VALUE VALUE

VIRTUAL INPUTS

ð
INPUT 1 FUNCTION:
ENTER
Disabled
ESCAPE
INPUT 1 TARGET:
ESCAPE
Self-Reset
MESSAGE
INPUT 1 NAME:
ESCAPE
Virtual Input 1
MESSAGE
INPUT 1 PROGRAMMED
ESCAPE
STATE: Not Asserted
MESSAGE
to edit the login input name. The text may be changed from "Virtual Input 1" one charac-
ENTER
/ keys. Press
VALUE VALUE
745 Transformer Management Relay
LOGIC INPUT 1(16)
Range: Enabled, Disabled
Range: None, Latched, Self-Reset
Range: 18 alphanumeric characters
Range: Open, Closed
to store and advance to the next character position.
ENTER
VIRTUAL INPUT 1(16)
Range: Enabled, Disabled
Range: None, Latched, Self-Reset
Range: 18 alphanumeric characters
Range: Not Asserted, Asserted
to store and advance to the next character position.
ENTER
5 SETPOINTS

5.5.1 DESCRIPTION

5.5.2 LOGIC INPUTS 1 TO 16

5.5.3 VIRTUAL INPUTS
GE Multilin