Lenze I51AE175B User Manual

7.7 S-shaped ramps
In order to reduce the jerk and to therefore prevent the drive components from damage, a
smoothing factor can be set for the acceleraon/deceleraon ramps.
Details
In the default seng, the motor is accelerated and decelerated with linear ramps since this is
the most used conguraon. The seng of a smoothing factor causes S-shaped ramps. This
leads to a smoother starng and braking behaviour which, for instance, is used for sensive
machine parts with backlash. It has to be observed here that the seng of a smoothing factor
causes longer acceleraon and delay mes (see the following diagrams).
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
0 Hz
30 Hz
10 Hz
20 Hz
40 Hz
50 Hz
60 Hz
t
0x2918
+ (50 % · 0x2917 )0x2917 )0x2918 + (50 % · 0x2918
)+ (100 % · 0x29170x2917 )0x2918 + (100 % · 0x2918
0x2916
0x2917
0x291E:001 = 0 %
0x291E:001 = 50 %
0x291E:001 = 100 %
0x2DDD
Output signals
Output frequency
Input signals
Frequency setpoint selection
Parameter Name / value range / [default seng] Info
0x291E:001
(P226.01)
S-Ramp characterisc: Smoothing factor
(S-ramp char.: Smoothing factor)
0.0 ... [0.0] ... 100.0 %
Factor for S-rounding of the acceleraon/deceleraon ramps.
•
With the seng "0.0", the S-rounding is deacvated and acceleraon/
deceleraon with linear ramps is carried out.
Basic seng
S-shaped ramps
111

Lenze I51AE175B Specifications

General

Brand	Lenze
Model	I51AE175B
Category	Inverter
Language	English