Eaton EMS-SWD Series Manual

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3 Commissioning3.5 DiagnosticsElectronic motor starter EMS-...-SWD 12/18 MN034002ZU-DE/EN www.eaton.com 693.5.2 Differential trip indication (TRIPR)In the event of a malfunction or interruption of the main circuits due to afault, the trip reason of the interruption is indicated via the TRIPR bit field.The following trip reasons are shown by the TRIPR bit array:Table 12: Bit array TRIPR3.5.3 Relative current valueEMS-DOS/ROS-SWD electronic motor starters indicate the current motorcurrent using input byte 2 and acyclical read object 4. This motor current willbe represented as a relative value within a range of 0 % (0x00) to 255 %(0xFF). The relative value sent is calculated as the value of the measuredphase current relative to the overload release's set current value.In order for the motor current value to be sent, the electronic motor starter‘sminimum current value must be exceeded. This minimum current is either0.15 A (in the case of EMS-…-2,4-SWD) or 1.2 A (in the case of EMS-…-9-SWD).The maximum measuring accuracy of the transferred relative current value is5 %.3.5.4 Thermal motor image [TH]EMS-DOS/ROS-SWD electronic motor starters calculate the motor‘s thermalstate based on the selected current range and the current current flow, afterwhich they provide the corresponding value in the form of a data byte. Themotor‘s thermal load is represented in input byte 3 as a relative value withina range of 0 % (0x00) to 255 % (0xFF). The main circuits are interrupted as aresult of a motor overload if the thermal motor model is 115 %.Value ofTRIPR bitarrayMeaning0x0 Not defined0x1 Overload0x2 not assigned0x3 Phase Imbalance0x4 Phase failure0x5 Block0x6 not assigned0x7 not assigned￫ The value in data field Motor Current [%] can also be read as anacyclical object (￫ Section 3.7, “Acyclic data”, Page 73).