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Acceleration profile tables | 30 Nov 2010 | |

Acceleration profile tables

Valid for S300, S700

The acceleration/braking ramps can be adjusted with a customer profile stored previously in the servo amplifier. You can create your own profile tables (see page Setup of acceleration profile tables).

Default tables in the servo amplifier

An excessive peak current may be necessary depending on the selected acceleration profile. The following description defines the required higher value referred to the trapezoidal profile.
Legend:
IPx= Ipeak factor x: profile requires x% more peak current of the servo amplifier
I2tx= I2t factor y: profile requires y% more peak charge of the servo amplifier 

Trapezoidal
IPx 100%
I2tx 100% 

The drive is given a constant linear acceleration/deceleration to the target speed. 

sin²
IPx 157%
I2tx 123% 

To limit any jolting, the drive is accelerated/decelerated within the acceleration time along an acceleration ramp without any disruptions. The resulting speed characteristic corresponds to a sine² curve. The profile is stored in a table in the servo amplifier.  

Profile tables

red : P_cmd (position set point)
green : v_cmd (velocity set point)
blue : I_cmd (torque set point)

IPx 157%
I2tx 123% 

profil0 

IPx 200%
I2tx 150% 

profil1  

IPx 132%
I2tx 115% 

profil2  

IPx 113%
I2tx 106% 

profil3  

4...15 

unused

Customer specific tables with totally 4000 points possible (see page Setup of acceleration profile tables).

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