Virtual Inputs - GE SR345 Instruction Manual

CHAPTER 6: SETPOINTS
SET GROUP 2 ACTIVE SET GROUP 2 ACTIVE
Off
BLK GROUP CHANGE BLK GROUP CHANGE
Off

Virtual inputs

345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Courtesy of NationalSwitchgear.com
Figure 34: Switching setpoint groups - Logic diagram
SETPOINT
SETPOINT
ACTUAL VALUES ACTUAL VALUES
Group 1 Active Group 1 Active
There are 32 virtual inputs that can be individually programmed to respond to input
commands entered via the relay keypad, or by using communication protocols.
PATH: SETPOINTS > S4 CONTROLS > VIRTUAL INPUTS
VIRTUAL INPUT 1
Range: Off, On
Default: Off
The state of each virtual input can be controlled under
menu. For this purpose, each of the virtual inputs selected for control need
VIRTUAL INPUTS
be "Enabled" under SETPOINTS > S5 INPUTS/OUTPUTS > VIRTUAL INPUTS
Reset" or "Latched" specified.
If Self-Reset type was selected, entering "On" command will lead to a pulse of one
protection pass. To prolong the time of the virtual input pulse, one can assign it as a
trigger source to a Logic Element with a dropout timer set to the desired pulse time. If
"Latched" type is selected, the state of the virtual input will be latched, upon entering "On"
command.
Refer to the logic diagram in the
details.
.
SETPOINTS > S4 CONTROL >
S5 INPUTS/OUTPUTS > VIRTUAL INPUTS
S4 CONTROLS
LED: Setpoint Group 2 LED: Setpoint Group 2
Use Setpoint Group 2 Use Setpoint Group 2
LED: Setpoint Group 1 LED: Setpoint Group 1
Default to Setpoint Group 1 Default to Setpoint Group 1
897791.cdr
, and its type "Self-
chapter for more
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