BONFIGLIOLI active cube 201, Operating Instructions Manual

Page: 162 / 285

162 Operating Instructions ACU 12/16
Example: Calculation of the acceleration time in clockwise rotation with an acceleration from 20
Hz to 50 Hz (fmax) and an acceleration ramp of 2 Hz/s for parameter
Acceleration
(Clockwise)
420 . The
Ramp Rise Time Clockwise
430 is set to 100 ms.
r
aufr
a
Δf
t

s 15
Hz/s 2
Hz 20 Hz 50
t
aufr



s 15,1 ms 100 s 15 t
t t t
auf
Vr aufr auf
  
 
t
aufr
∆f
a
r
t
Vr
t
auf
=
=
=
=
=
acceleration time
clockwise rotary field
change of frequency
acceleration ramp
Acceleration
Clockwise
Ramp Rise Time
Clockwise
Acceleration time +
Ramp rise time
15.8 Percentage Value Ramps
The percentage value ramps scale the change of the reference value (in percent) for the
corresponding input function. The acceleration and deceleration of the drive are parameterized via
the frequency ramps.
The behavior
Gradient Percentage Ramp
477 corresponds to a function which takes the time
behavior of the drive system into account. If the parameter is set to 0 %/s, this function is
deactivated and a direct reference value modification for the following function is obtained.
The default value depends on
Configuration
30 .
Parameter Setting
No. Description Min. Max. Factory setting
477 Gradient Percentage Ramp 0 %/s 60000 %/s x %/s
Rotary field
clockwise
Rotary field
anticlockwise
+f
m ax
-f
ma x
Ramp Rise Time Clockwise
43 0
Ramp Fall Time Clockwise
431
Ramp Rise Time Anticlockwise 432
Ramp Rise Time Anticlockwise 433
t
t
au fr
t
au f
Frequency reference value = 0.00 Hz