The frequency converter decelerates to stop according to the defined decel-
eration time.
– If an error happens due to too fast deceleration, extend the decel-
eration time or calculate if additional brake resistors are required.
– If the output frequency is lower than the "Stopping DC braking in-
itial frequency" [b1.41] and "DC braking time" [b1.42] ≠ 0, DC
braking is activated. The DC braking current is decided by b1.43.
– DC braking is suitable for circumstances where regular decelera-
tion to stop or quick stopping is required. The larger DC braking
current, the larger braking force. However, the withstanding capa-
bility of the motor has to be taken into account.
● 1: Freewheeling to stop
Once the stopping command is activated, the frequency converter stops out-
put and the motor mechanically freewheels to stop.
● 2: Freewheeling with STOP-command, decelerating when direction changes
This function also allows the frequency converter freewheeling to stop if
STOP-command is active and decelerating to stop according to stopping
mode (e.g., deceleration time and stopping DC braking) when direction
change command is active during running.
The digital input “freewheeling to stop” is an additional source for
the STOP command. When the digital input is active, the frequency
converter will freewheels to stop immediately regardless of its previ-
ous status. The frequency converter will only return to the running
state when a run command is active and the digital input has been
deactivated. Please refer to E0.01 ~ E0.05 for more details.
b1.41 Stopping DC braking initial frequency
Setting range 0.00 ~ 50.00 Hz
Minimum unit 0.01 Hz
Factory default 0.00 Hz
b1.42 Stopping DC braking time
Setting range 0.0 ~ 20.0s (0.0 represents no action of stopping DC braking)
Minimum unit 0.1s
Factory default 0.0s
b1.43 Stopping DC braking current
Setting range 0.0 % ~ 150.0 % (of rated frequency converter current)
Minimum unit 0.1 %
Factory default 0.0 %
There are two ways to carry out the stopping DC braking: parameter setting and
digital input. DC-braking will only be activated, when
EFC 3600
Bosch Rexroth AG
Parameter Settings
DOK-RCON03-EFC-3600***-IT03-EN-P
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