GE Multilin L90 Line Differential Relay 5-1595 SETTINGS 5.6 CONTROL ELEMENTS5APPLICATION EXAMPLEConsider an application where the selector switch is used to control Setting Groups 1 through 4 in the relay. The settinggroups are to be controlled from both User-Programmable Pushbutton 1 and from an external device via Contact Inputs 1through 3. The active setting group shall be available as an encoded 3-bit word to the external device and SCADA via out-put contacts 1 through 3. The pre-selected setting group shall be applied automatically after 5 seconds of inactivity of thecontrol inputs. When the relay powers up, it should synchronize the setting group to the 3-bit control input.Make the following changes to Setting Group Control in the SETTINGS !" CONTROL ELEMENTS ! SETTING GROUPS menu:SETTING GROUPS FUNCTION: ìEnabledî GROUP 4 ACTIVATE ON: ìSELECTOR 1 POS 4"SETTING GROUPS BLK: ìOffî GROUP 5 ACTIVATE ON: ìOffîGROUP 2 ACTIVATE ON: ìSELECTOR 1 POS 2" GROUP 6 ACTIVATE ON: ìOffîGROUP 3 ACTIVATE ON: ìSELECTOR 1 POS 3"Make the following changes to Selector Switch element in the SETTINGS !" CONTROL ELEMENTS !" SELECTOR SWITCH !SELECTOR SWITCH 1 menu to assign control to User Programmable Pushbutton 1 and Contact Inputs 1 through 3:SELECTOR 1 FUNCTION: ìEnabledî SELECTOR 1 3BIT A0: ìCONT IP 1 ONîSELECTOR 1 FULL-RANGE: ì4î SELECTOR 1 3BIT A1: ìCONT IP 2 ONîSELECTOR 1 STEP-UP MODE: ìTime-outî SELECTOR 1 3BIT A2: ìCONT IP 3 ONîSELECTOR 1 TIME-OUT: ì5.0 sî SELECTOR 1 3BIT MODE: ìTime-outîSELECTOR 1 STEP-UP: ìPUSHBUTTON 1 ONî SELECTOR 1 3BIT ACK: ìOffîSELECTOR 1 ACK: ìOffî SELECTOR 1 POWER-UP MODE: ìSynchronizeîNow, assign the contact output operation (assume the H6E module) to the Selector Switch element by making the followingchanges in the SETTINGS !" INPUTS/OUTPUTS !" CONTACT OUTPUTS menu:OUTPUT H1 OPERATE: ìSELECTOR 1 BIT 0"OUTPUT H2 OPERATE: ìSELECTOR 1 BIT 1"OUTPUT H3 OPERATE: ìSELECTOR 1 BIT 2"Finally, assign configure User-Programmable Pushbutton 1 by making the following changes in the SETTINGS ! PRODUCTSETUP !" USER-PROGRAMMABLE PUSHBUTTONS ! USER PUSHBUTTON 1 menu:PUSHBUTTON 1 FUNCTION: ìSelf-resetîPUSHBUTTON 1 DROP-OUT TIME: ì0.10 sîThe logic for the selector switch is shown below:Figure 5ñ97: SELECTOR SWITCH LOGIC842012A1.CDRstep upacknowledge3-bit position outonFLEXLOGIC OPERANDSSELECTOR 1 POS 1SELECTOR 1 POS 2SELECTOR 1 POS 3SELECTOR 1 POS 4SELECTOR 1 POS 5SELECTOR 1 POS 6SELECTOR 1 POS 7SELECTOR 1 STP ALARMSELECTOR 1 BIT ALARMSELECTOR 1 ALARMSELECTOR 1 BIT 0SELECTOR 1 BIT 1SELECTOR 1 BIT 2ORFLEXLOGIC OPERANDSRUNSELECTOR 1 POWER-UP MODE:SETTINGSSELECTOR 1 TIME-OUT:SELECTOR 1 STEP-UP MODE:SELECTOR 1 FULL RANGE:SELECTOR 1 STEP-UP:OffSELECTOR 1 FUNCTION:SETTINGSEnabled = 1SELECTOR 1 ACK:OffSELECTOR 1 3BIT A0:OffSELECTOR 1 3BIT A1:OffSELECTOR 1 3BIT A2:OffSELECTOR 1 3BIT ACK:Off 3-bitacknowledgeSELECTOR 1 POSITIONACTUAL VALUE2134567SELECTOR 1 3BIT MODE:SELECTOR 1 PWR ALARM3-bit control in
