GE B30 Instruction Manual page 178

5.2 PRODUCT SETUP
The pushbutton is reset (deactivated) in latched mode by asserting the operand assigned to the
ting or by directly pressing the associated active front panel pushbutton.
It can also be programmed to reset automatically through the
tings. These settings enable the autoreset timer and specify the associated time delay. The autoreset timer can be
used in select-before-operate (SBO) breaker control applications, where the command type (close/open) or breaker
location (feeder number) must be selected prior to command execution. The selection must reset automatically if con-
trol is not executed within a specified time period.
• Self-reset mode: In self-reset mode, a user-programmable pushbutton can be set (activated) by asserting the operand
assigned to the
PUSHBTN 1 SET
time it is pressed plus the dropout time specified in the
via FlexLogic, the pulse duration is specified by the
assigned to the
PUSHBTN 1 SET
The pulse duration of the remote set or local front panel pushbutton must be at least 50 ms to operate the pushbut-
ton. This allows the user-programmable pushbuttons to properly operate during power cycling events and various
NOTE system disturbances that can cause transient assertion of the operating signals.
The local and remote operation of each user-programmable pushbutton can be inhibited through the
settings. If local inhibit is applied, the pushbutton ignores set and reset commands executed through
PUSHBTN 1 REMOTE
the front panel pushbuttons. If remote inhibit is applied, the pushbutton ignores set and reset commands executed through
FlexLogic operands.
The inhibit functions are not applied to the autoreset feature. The inhibit function can be used in SBO control operations to
prevent user-programmable pushbutton activation and ensuring "one-at-a-time" select operation.
The inhibit functions can also be used to prevent pushbutton activation from the accidental pressing of the front panel push-
buttons. The separate inhibit of the local and remote operation simplifies the implementation of local/remote control super-
5
vision.
Pushbutton states can be logged by the event recorder. User-defined messages can also be associated with each pushbut-
ton and displayed when the pushbutton is activated and when in latched mode when the pushbutton deactivated.
• PUSHBUTTON 1 FUNCTION: This setting selects the mode of the pushbutton (Self-Reset, Latched, Disabled). If set
to "Disabled," the pushbutton is not active and the corresponding FlexLogic operands (both "On" and "Off") are de-
asserted.
• PUSHBTN 1 ID TEXT: This setting specifies the top 20-character line of the user-programmable pushbutton message
and is intended to provide ID information of the pushbutton. See the User-definable Displays section in this chapter for
instructions on how to enter alphanumeric characters from the keypad.
• PUSHBTN 1 ON TEXT: This setting specifies the bottom 20-character line of the user-programmable message and is
displayed when the pushbutton is in the "on" position. See the User-definable Displays section for instructions on
entering alphanumeric characters from the keypad.
• PUSHBTN 1 OFF TEXT: This setting specifies the bottom 20-character line of the user-programmable pushbutton
message and displays when the pushbutton is deactivated and the
does not display when the
"Off" upon its release. The length of the "Off" message is configured with the

FLASH MESSAGE TIME
• PUSHBTN 1 HOLD: This setting specifies the time required for a front panel pushbutton to be pressed before it is
deemed active. This timer is reset upon release of the pushbutton. Note that user-programmable pushbutton operation
requires the front panel pushbutton to be pressed a minimum of 50 ms. This minimum time is required prior to activat-
ing the user-programmable pushbutton hold timer.
• PUSHBTN 1 SET: This setting assigns the FlexLogic operand serving to activate the user-programmable pushbutton
element. The duration of the incoming set signal must be at least 50 ms.
• PUSHBTN 1 RESET: This setting assigns the FlexLogic operand serving to deactivate the user-programmable push-
button element. This setting is applicable only if the user-programmable pushbutton is in "Latched" mode.
• PUSHBTN 1 AUTORST: This setting enables the user-programmable pushbutton autoreset feature. This setting is
applicable only if the pushbutton is in "Latched" mode.
5-48
setting or by pressing the front panel pushbutton. A pushbutton remains active for the
setting remains On has no effect on the pulse duration.
is "Self-reset" as the pushbutton operand status is implied to be
PUSHBUTTON 1 FUNCTION
setting.
B30 Bus Differential System
and
PUSHBTN 1 AUTORST
setting. If the pushbutton is activated
PUSHBTN 1 DROP-OUT TIME
only. The time the operand remains
PUSHBTN 1 DROP-OUT TIME
PUSHBUTTON 1 FUNCTION
PRODUCT SETUP
5 SETTINGS
set-
PUSHBTN 1 RESET
set-
PUSHBTN 1 AUTORST DELAY
and
PUSHBTN 1 LOCAL
is "Latched". A message

DISPLAY PROPERTIES
GE Multilin