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Dynamic Braking on AC Drives:Application ConsiderationsDB is not failsafe: If power is removed, DB will not function.DB is available whenever power is applied: The DB is availableprovided the drive is not faulted with Overvoltage or BrakeResistor/Switch.DB is suitable for intermittent operation only: 4 stops at 100% load perhour permitted or continuous braking at 30% load. Other regenerativesolutions exist for long-term overhauling loads.26
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