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28 05/2020, 4BS0576F-004
Text for event memory entry
3133 Fault Diff. current input Flt>DiffCurr high The summation current transformer –T20 has tripped. An earth current of
min. 2…4A is flowing (depending on the device). Check where the earth
fault is located. The earth fault can be located either in the inverter, down-
stream converter T20, in the motor conductors or in the motor. Possibly,
the capacitive leakage current of the motor conductor to earth is too high.
In this case contact our service station.
3134 Fault T-heat sink asymm. Flt>T-Cooler asym The distribution of temperature on the power heatsink is asymmetrical.
Check the air intake filter for dirt resp. Check the fan of the device.
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