4.1.6.9 Technical dataTable 243:T2PTTR Technical dataCharacteristic ValueOperation accuracy Depending on the frequency of the currentmeasured: fn ±2 HzCurrent measurement: ±1.5% of the set value or±0.002 x In (at currents in the range of0.01...4.00 x In)Operate time accuracy1) ±2.0% of the theoretical value or ±0.50 s1) Overload current > 1.2 x Operate level temperature4.1.6.10 Technical revision historyTable 244:T2PTTR Technical revision historyTechnical revision ChangeB Added the AMB_TEMP input4.1.7 Motor load jam protection JAMPTOC4.1.7.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberMotor load jam protection JAMPTOC Ist> 51LR4.1.7.2 Function blockGUID-FA5FAB32-8730-4985-B228-11B92DD9E626 V2 ENFigure 120: Function block4.1.7.3 FunctionalityThe motor load jam protection JAMPTOC is used for protecting the motor in stallor mechanical jam situations during the running state.When the motor is started, a separate function is used for the startup protection, andJAMPTOC is normally blocked during the startup period. When the motor haspassed the starting phase, JAMPTOC monitors the magnitude of phase currents.Section 4 1YHT530004D05 DProtection functions240 615 seriesTechnical Manual
