GE D30 series Instruction Manual

Also see for D30 series: Communications manual Communications guide Instruction manual Instruction manual Instruction manual

Contents

GE Multilin D30 Line Distance Protection System 5-615 SETTINGS 5.2 PRODUCT SETUP5The local and remote operation of each user-programmable pushbutton can be inhibited through the PUSHBTN 1 LOCAL andPUSHBTN 1 REMOTE settings, respectively. If local locking is applied, the pushbutton will ignore set and reset commandsexecuted through the front panel pushbuttons. If remote locking is applied, the pushbutton will ignore set and reset com-mands executed through FlexLogic operands.The locking functions are not applied to the autorestart feature. In this case, the inhibit function can be used in SBO controloperations to prevent the pushbutton function from being activated and ensuring “one-at-a-time” select operation.The locking functions can also be used to prevent the accidental pressing of the front panel pushbuttons. The separateinhibit of the local and remote operation simplifies the implementation of local/remote control supervision.Pushbutton states can be logged by the event recorder and displayed as target messages. In latched mode, user-definedmessages can also be associated with each pushbutton and displayed when the pushbutton is on or changing to off.• PUSHBUTTON 1 FUNCTION: This setting selects the characteristic of the pushbutton. If set to “Disabled”, the push-button is not active and the corresponding FlexLogic operands (both “On” and “Off”) are de-asserted. If set to “Self-Reset”, the control logic is activated by the pulse (longer than 100 ms) issued when the pushbutton is being physicallypressed or virtually pressed via a FlexLogic operand assigned to the PUSHBTN 1 SET setting.When in “Self-Reset” mode and activated locally, the pushbutton control logic asserts the “On” corresponding Flex-Logic operand as long as the pushbutton is being physically pressed, and after being released the deactivation of theoperand is delayed by the drop out timer. The “Off” operand is asserted when the pushbutton element is deactivated. Ifthe pushbutton is activated remotely, the control logic of the pushbutton asserts the corresponding “On” FlexLogicoperand only for the time period specified by the PUSHBTN 1 DROP-OUT TIME setting.If set to “Latched”, the control logic alternates the state of the corresponding FlexLogic operand between “On” and “Off”on each button press or by virtually activating the pushbutton (assigning set and reset operands). When in the“Latched” mode, the states of the FlexLogic operands are stored in a non-volatile memory. Should the power supply belost, the correct state of the pushbutton is retained upon subsequent power up of the relay.• PUSHBTN 1 ID TEXT: This setting specifies the top 20-character line of the user-programmable message and isintended to provide ID information of the pushbutton. Refer to the User-definable displays section for instructions onhow 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 isdisplayed when the pushbutton is in the “on” position. Refer to the User-definable displays section for instructions onentering alphanumeric characters from the keypad.• PUSHBTN 1 OFF TEXT: This setting specifies the bottom 20-character line of the user-programmable message and isdisplayed when the pushbutton is activated from the on to the off position and the PUSHBUTTON 1 FUNCTION is“Latched”. This message is not displayed when the PUSHBUTTON 1 FUNCTION is “Self-reset” as the pushbutton operandstatus is implied to be “Off” upon its release. The length of the “Off” message is configured with the PRODUCT SETUP DISPLAY PROPERTIES  FLASH MESSAGE TIME setting.• PUSHBTN 1 HOLD: This setting specifies the time required for a pushbutton to be pressed before it is deemed active.This timer is reset upon release of the pushbutton. Note that any pushbutton operation will require the pushbutton to bepressed a minimum of 50 ms. This minimum time is required prior to activating the pushbutton hold timer.• PUSHBTN 1 SET: This setting assigns the FlexLogic operand serving to operate the pushbutton element and to assertPUSHBUTTON 1 ON operand. The duration of the incoming set signal must be at least 100 ms.• PUSHBTN 1 RESET: This setting assigns the FlexLogic operand serving to reset pushbutton element and to assertPUSHBUTTON 1 OFF operand. This setting is applicable only if pushbutton is in latched mode. The duration of theincoming reset signal must be at least 50 ms.• PUSHBTN 1 AUTORST: This setting enables the user-programmable pushbutton autoreset feature. This setting isapplicable only if the pushbutton is in the “Latched” mode.• PUSHBTN 1 AUTORST DELAY: This setting specifies the time delay for automatic reset of the pushbutton when inthe latched mode.• PUSHBTN 1 REMOTE: This setting assigns the FlexLogic operand serving to inhibit pushbutton operation from theoperand assigned to the PUSHBTN 1 SET or PUSHBTN 1 RESET settings.• PUSHBTN 1 LOCAL: This setting assigns the FlexLogic operand serving to inhibit pushbutton operation from the frontpanel pushbuttons. This locking functionality is not applicable to pushbutton autoreset.