Percentage Value Ramps - BONFIGLIOLI ACTIVE CUBE 201 Operating Instructions Manual

+f
m ax
Rotary field
clockwise
Rotary field
anticlockwise
-f
ma x
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
(Clockwise)
Δf

t
aufr
a
50

t
aufr

t t
auf aufr

t 15
auf
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
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
Parameter
No. Description
477 Gradient Percentage Ramp
162
Ramp Fall Time Clockwise 431
Ramp Rise Time Clockwise 43 0
t
au fr
t
au f
420. The
Ramp Rise Time Clockwise
r

Hz 20 Hz

15 s
2 Hz/s

t
Vr
 
s 100 ms 15,1 s
477 corresponds to a function which takes the time
Configuration
0 %/s
Operating Instructions ACU
Frequency reference value = 0.00 Hz
Ramp Rise Time Anticlockwise 432
Ramp Rise Time Anticlockwise 433
430 is set to 100 ms.
t = acceleration time
aufr
clockwise rotary field
∆f = change of frequency
acceleration ramp
a = Acceleration
r
Clockwise
t = Ramp Rise Time Clockwise
Vr
Acceleration time +
t = Ramp rise time
auf
30.
Setting
Min. Max.
60000 %/s
t
Acceleration
Factory setting
x %/s
12/16