● If ‘Startup DC brake time’ [b1.20] is 0.0s, the frequency converter starts
directly without DC brake. The larger the DC brake current, the larger
the braking force is. The setting needs take the withstanding capability
of the motor into account.
b1.21
Shutdown DC brake activation frequency Factory default 0.00
Setting range 0.00...10.00 Hz Minimum unit 0.01
b1.22
Shutdown DC brake time Factory default 0.0
Setting range 0.0...20.0 s Minimum unit 0.1
● Used to set the time for applying the DC brake current during the stop
process. If parameter b1.22 is set to 0.0s, no DC brake is done, and the
frequency converter stops according to ‘0: Decelerate to stop’ of ‘Stop
mode’ [b1.19]. When digital input Xi = 13, parameter b1.22 is deactiva‐
ted.
b1.23
DC brake current Factory default 0.0
Setting range
0.0...150.0 %
(of 'Rated frequency con‐
verter current')
Minimum unit 0.1
● When the frequency converter starts in the DC brake mode or shutdown
DC brake is active, b1.23 is used to control the braking current and is
set in a percentage of the rated frequency converter current.
DOK-RCON02-FV*********-IB08-EN-P Bosch Rexroth AG 113/259
Rexroth Frequency Converter Fv
Parameter Settings
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