S4 Controls; Virtual Inputs - GE 339 Instruction Manual

S4 CONTROLS

S4 Controls

Virtual inputs

6–118
Figure 6-50: Main controls menu with BREAKER
Figure 6-51: Main controls menu with CONTACTOR
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 be
INPUTS
"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.
S4 CONTROLS
VIRTUAL INPUTS
LOGIC ELEMENTS
BREAKER CONTROL
BREAKER FAIL
CT FAILURE
VT FUSE FAILURE
WELDED CONTACTOR
START INHIBIT
EMERGENCY RESTART
LOCKOUT RESET
RESET
896767A3. cdr
.
SETPOINTS > S4 CONTROL > VIRTUAL
S5 INPUTS/OUTPUTS > VIRTUAL INPUTS
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 6: SETPOINTS
, and its type "Self-
section for more