Control Pushbuttons - GE T35 UR Series Instruction Manual

Transformer protection system
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5 SETTINGS
PATH: SETTINGS
PRODUCT SETUP
 CONTROL
 PUSHBUTTON 1
MESSAGE
There are three standard control pushbuttons, labeled USER 1, USER 2, and USER 3, on the standard and enhanced front
panels. These are user-programmable and can be used for various applications such as performing an LED test, switching
setting groups, and invoking and scrolling though user-programmable displays.
The location of the control pushbuttons are shown in the following figures.
Figure 5–7: CONTROL PUSHBUTTONS (ENHANCED FACEPLATE)
An additional four control pushbuttons are included on the standard faceplate when the T35 is ordered with the twelve user-
programmable pushbutton option.
Figure 5–8: CONTROL PUSHBUTTONS (STANDARD FACEPLATE)
Control pushbuttons are not typically used for critical operations and are not protected by the control password. However,
by supervising their output operands, the user can dynamically enable or disable control pushbuttons for security reasons.
Each control pushbutton asserts its own FlexLogic operand. These operands should be configured appropriately to perform
the desired function. The operand remains asserted as long as the pushbutton is pressed and resets when the pushbutton
is released. A dropout delay of 100 ms is incorporated to ensure fast pushbutton manipulation will be recognized by various
features that may use control pushbuttons as inputs.
An event is logged in the event record (as per user setting) when a control pushbutton is pressed. No event is logged when
the pushbutton is released. The faceplate keys (including control keys) cannot be operated simultaneously – a given key
must be released before the next one can be pressed.
GE Multilin


CONTROL PUSHBUTTONS

CONTROL PUSHBUTTON 1
FUNCTION: Disabled
CONTROL PUSHBUTTON 1
EVENTS: Disabled
Control pushbuttons
STATUS
EVENT CAUSE
IN SERVICE
VOLTAGE
TROUBLE
CURRENT
RESET
TEST MODE
FREQUENCY
TRIP
OTHER
USER 1
ALARM
PHASE A
PICKUP
PHASE B
USER 2
PHASE C
NEUTRAL/GROUND
USER 3
USER 4
USER 5
USER 6
USER 7
842733A2.CDR
T35 Transformer Protection System
5.2.13 CONTROL PUSHBUTTONS
CONTROL PUSHBUTTON 1(7)
Range: Disabled, Enabled
Range: Disabled, Enabled
842813A1.CDR
THREE
STANDARD
CONTROL
PUSHBUTTONS
FOUR EXTRA
OPTIONAL
CONTROL
PUSHBUTTONS
5.2 PRODUCT SETUP
5
5-63

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