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Bosch Rexroth AG
Functions and Parameters
DC-braking before start
DC-braking is used in applications, in which regular deceleration to
stop or a quick stop is required. The larger DC-braking current, the
larger braking force. However, the withstanding capability of the mo-
tor has to be considered before use the DC-braking function.
'DC-braking before start' is used in applications where the load may encounter
forward / reverse rotation when the frequency converter is in stop mode.
Code
Name
E0.38 Start DC-braking time
E0.39 Start DC-braking current
①
: percentage of frequency converter rated current.
Fig. 12-20: DC-braking before start
When [E0.38] ≠ 0, DC-braking will be executed. After this, the frequency con-
verter starting to accelerate to [E0.36] 'Start frequency' for a period of [E0.37],
then accelerate to the setting frequency.
112/253
Setting range
0.0...20.0 s
0.0...150.0 %
①
VFC 3210
Default
Min.
0.0
0.1
0.0
0.1
DOK-RCON04-VFC3210****-IT01-EN-P
Attri.
Stop
Stop
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