15.9.8 Technical dataM14987-1 v6Table 418:LMBRFLO technical dataFunction Value or range AccuracyReactive and resistive reach (0.001-1500.000) Ω/phase ±2.0% static accuracyConditions:Voltage range: (0.1-1.1) x UrCurrent range: (0.5-30) x IrPhase selection According to input signals -Maximum number of faultlocations100 -15.10 Limit counter L4UFCNT GUID-22E141DB-38B3-462C-B031-73F7466DD135 v115.10.1 Identification15.10.1.1 Identification GUID-F3FB7B33-B189-4819-A1F0-8AC7762E9B7E v2Function description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberLimit counter L4UFCNT -15.10.2 Functionality GUID-13157EAB-1686-4D2E-85DF-EC89768F3572 v6The Limit counter (L4UFCNT) provides a settable counter with four independentlimits where the number of positive and/or negative flanks on the input signal arecounted against the setting values for limits. The output for each limit is activatedwhen the counted value reaches that limit.Overflow indication is included for each up-counter.15.10.3 Operation principleGUID-4D58423F-329C-4553-9FAF-E55A368849A5 v2Limit counter (L4UFCNT) counts the number of positive and/or negative flanks onthe binary input signal depending on the function settings. L4UFCNT also checksif the accumulated value is equal or greater than any of its four settable limits. Thefour limit outputs will be activated relatively on reach of each limit and remainactivated until the reset of the function. Moreover, the content of L4UFCNT isstored in flash memory and will not be lost at an auxiliary power interruption.1MRK 505 394-UEN A Section 15MonitoringLine differential protection RED650 2.2 IEC 599Technical manual
