Virtual Outputs - GE L90 Instruction Manual

Ur series line current differential system
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5.8 INPUTS/OUTPUTS
Write the following FlexLogic™ equation (EnerVista UR Setup example shown):
Both timers (Timer 1 and Timer 2) should be set to 20 ms pickup and 0 ms dropout.
Program the Latching Outputs by making the following changes in the
PUTS
CONTACT OUTPUT H1a
OUTPUT H1a OPERATE:
OUTPUT H1a RESET:
Application Example 4:
A latching contact H1a is to be controlled from a single virtual output VO1. The contact should stay closed as long as VO1
is high, and should stay opened when VO1 is low. Program the relay as follows.
Write the following FlexLogic™ equation (EnerVista UR Setup example shown):
5
Program the Latching Outputs by making the following changes in the
PUTS
CONTACT OUTPUT H1a
OUTPUT H1a OPERATE:
OUTPUT H1a RESET:
PATH: SETTINGS
INPUTS/OUTPUTS
VIRTUAL OUTPUT
There are 96 virtual outputs that may be assigned via FlexLogic™. If not assigned, the output will be forced to 'OFF' (Logic
0). An ID may be assigned to each virtual output. Virtual outputs are resolved in each pass through the evaluation of the
FlexLogic™ equations. Any change of state of a virtual output can be logged as an event if programmed to do so.
For example, if Virtual Output 1 is the trip signal from FlexLogic™ and the trip relay is used to signal events, the settings
would be programmed as follows:
5-288
and
CONTACT OUTPUT H1c
"
"
VO1
"
"
VO4
menu (assuming an H4L module):
"
"
VO1
"
"
VO2

VIRTUAL OUTPUTS

1
VIRTUAL OUTPUT
Virt Op 1
VIRTUAL OUTPUT
MESSAGE
EVENTS: Disabled
L90 Line Current Differential System
SETTINGS
menus (assuming an H4L module):
"
OUTPUT H1c OPERATE:
VO2
"
"
VO3
OUTPUT H1c RESET:
SETTINGS
VIRTUAL OUTPUT 1(96)
Range: Up to 12 alphanumeric characters
1 ID
Range: Disabled, Enabled
1
5 SETTINGS
INPUTS/OUTPUTS
CONTACT OUT-
"
INPUTS/OUTPUTS
CONTACT OUT-
5.8.4 VIRTUAL OUTPUTS
GE Multilin

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