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PowerFlex 750-Series AC Drives User Manual

PowerFlex 750-Series AC Drives User Manual

PowerFlex 750-Series AC Drives User Manual

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C-2 Application NotesExternal Brake Resistor!ATTENTION: The drive does not offer protection forexternally mounted brake resistors. A risk of fire exists ifexternal braking resistors are not protected. External resistorpackages must be self-protected from over temperature or acircuit equivalent to the one shown below must be supplied.Figure C.1 External Brake Resistor CircuitryThree-Phase<strong>AC</strong> Input(Input Contactor) MR (L1)S (L2)T (L3)Power OffPower OnMMPower SourceDB Resistor Thermostat<strong>PowerFlex</strong> <strong>750</strong>-<strong>Series</strong> <strong>User</strong> <strong>Manual</strong> – Publication <strong>750</strong>-UM001C-EN-P – September 2009

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