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Application Manual CDA3000
5 Software functions
5.5 Open-loop and
closed-loop
control
The following software functions are used in both the open-loop and the
closed-loop control modes.
5.5.1 _31 MB-Motor
holding brake
The diagram below represents the function of the motor holding brake
within the programmable frequency range. The brake can be released by
a digital output set by the function selector.
(1) Brake released
Figure 5.33 Frequency ranges of the holding brake. An output releases the
motor brake within the frequency range -FBRL ... +FBRR
Function Effect
• An electromechanical hold-
ingbrakecanbeactuated
depending on a limit value
• The holding brake engages
when a minimum frequency
limit is infringed. This may
also be configured depend-
ent on monitoring of the
motor currents.
FBCCW
FBCW
0
t[ms]
f [Hz]
0
1
FBHYS
FBHYS
Brake
released
t
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