Creating Prototype Machine Commissioning Archives - Siemens SINUMERIK 808D ADVANCED Commissioning Manual

Parameter adjustment after drive tuning
To ensure correct machining results of all interpolating axes, it is necessary to adjust the following axis-specific parameters
after the drive tuning:
● Position controller gain
– For the feed axes, set MD32200[0] to the minimum gain value of all interpolating axes.
– For the interpolating spindle with no gear stage change, you must also set MD32200[1] to the minimum value; for the
spindle with gear stage change, MD32200[2]~[5] corresponding to the gear stages must also be set to the same
value.
● Feedforward control type
Set the same feedforward control type for all axes by setting MD32620 (= 3: speed feedforward control; = 4: torque
feedforward control).
● Equivalent time constant for feedforward control
The equivalent times in MD32800 for torque feedforward control or in MD32810 for speed feedforward control must be
set to the same value. Taking the torque feedforward control for example:
– For the feed axes, set MD32800[0] to the maximum time of all interpolating axes.
– For the interpolating spindle with no gear stage change, you must also set MD32800[1] to the maximum value; for the
spindle with gear stage change, MD32800[2]~[5] corresponding to the gear stages must also be set to the same
value.
● Natural frequency for the reference model of the speed controller
With torque feedforward control, the reference model frequency in p1433 can be different for each axis. With speed
feedforward control, however, p1433 must be set to the same value (which is the minimum frequency) for all interpolating
axes (including the spindle).
7.8

Creating prototype machine commissioning archives

After commissioning the prototype machine, you must also create a commissioning archive for the data backup of the
prototype itself.
246
Commissioning Manual
01/2017