BECKHOFF EL7037 - Manual (Page 112)

Commissioning
Fig. 121: Selecting the feedback system
5.3.4 Configuring the main parameter - Selecting the reference
velocity
The specified data apply to an AS 1050-0120 stepper motor and are intended as an example. For other
motors the values may vary, depending on the application.
The maximum velocity can be calculated from the base frequency and the motor frequency.
v
max
= base frequency / motor frequency = (2000 full steps / s) / (200 full steps / rev) = 10 revolutions / s
The reference velocity can be calculated by multiplying the maximum velocity with the distance per
revolution.
v
ref
= 10 revolutions / s x 360° = 3600 °/ s
Note
Adjusting the reference velocity
The base frequency is directly linked to the reference speed of the TwinCAT NC, so that
the reference speed always has to be adapted when the base frequency is changed.
EL70x7 112 Version 1.0