38
GB
With DC-braking the motor is not decelerated by the ramp. Quick braking
is caused by D.C. voltage, which is applied onto the motor winding. This
parameter determines how the dc-braking is triggered.
Value Activation
0 DC-braking deactivated
1 DC-braking at switch off of the direction of rotation and in
reaching 0Hz. Braking time is dependent on CP.21 or until
the next direction of rotation presetting.
2 DC-braking as soon as the direction of rotation presetting
is absent. Braking time dependent on the real frequency
3 DC-braking, as soon as the direction of rotation changes.
Braking time dependent on the real frequency.
4 DC-braking at switch off of the direction of rotation and the
real frequency goes below 4 Hz.
5 DC-braking, when the real frequency goes below 4 Hz.
6 DC-braking, as soon as the set value goes below 4 Hz.
7 DC-braking, when input I3 (terminal X1.6/Version C) is switched.
Braking time is dependent on the real frequency. At version S
= value "0".
8 DC-braking as long as input I3 (terminal X1.6/Version C) is
switched. At version S same as value "0".
9 DC-braking after switching on the modulation on. Braking
time is dependent on CP.21.
Factory setting: 7
Note: Enter-Parameter
Customer adjustment: _______
The braking time is evaluated depending on CP.20 as follow:
- entered time = braking time
- entered time relates to 100 Hz and decreases/increases
proportionally to the real frequency.
Adjustment range: 0.00...100 s
Resolution: 0.01 s
Factory setting: 10 s
Customer adjustment: _______
Calculation of the braking time:
f
t
f
ist
CP.21
100 Hz
t
B
ist
DC-braking
Braking time
f
real
t
Breal
t
CP.21* f
100 Hz
B
real
real =
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