DC brake, generally used to stop and start the motor running. Pre-excitation is used to enable
the establishment of magnetic field induction motor and then start to improve the response speed.
DC brake is valid only in start-up mode for the direct start. At this point the drive to start first
by setting the DC braking current DC braking, DC braking time after the start and then start
running. If the set DC braking time is 0, no start directly after DC braking. DC braking current
increases, the greater the braking force.
If the start-up mode for the asynchronous machine to start pre-excitation, the drive pre-press
set excitation current pre-established field, after the set pre-magnetizing time before starting
operation. If the set pre-magnetizing time is 0, no pre-excitation processes started directly. DC
brake current / pre-excitation current, is the percentage of relative inverter rated current.
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