Example 3: Reoptimize The Speed Controller And The Position Controller Of An Axis - Siemens SINUMERIK 840D sl Function Manual

CYCLE752(myaxiswithnewload,3,false)
CYCLE754(myaxiswithnewload,2,2,-1)
CYCLE754(myaxiswithnewload,1,2,3)
CYCLE755(1,"restore point 1")
; CYCLE751(3)
CYCLE751(4)
CYCLE757(myaxiswithnewload,"ANEWTUNING.XML",1,,)
CYCLE757(myaxiswithnewload,"ANEWTUNING.CSV",3,,)
; The inertia can be used to limit the acceleration:
CYCLE759(myaxiswithnewload,34,,,"_AST_R_ESTINERTIA")
; If necessary, check the optimization results and then activate.
; Activate result:
CYCLE756(myaxiswithnewload,2,1)
CYCLE751(2)
; Switch to the newly optimized DDS or limit the acceleration depending on the new inertia.
M30
12.5.3

Example 3: Reoptimize the speed controller and the position controller of an axis

The controller setting of the rotary axis (here: 4th axis) driven with a torque motor depends on
the clamping equipment and the load inertia. If the clamping equipment or the load inertia
changes, the axis must be measured again. New current setpoint filters must probably by set.
The speed controller must be reoptimized. Because it is not known whether the low-frequency
behavior has changed, the position controller must also be reoptimized and the associated
mechanical frequency response measured.
The results, such as the complete inertia, can be read with CYCLE759. The newly optimized
speed controller is written to another data set. The newly optimized position controller can be
written to any desired axis parameter set. The correct path interpolation is guaranteed by a
target value for the (precontrolled) positioning behavior being specified in accordance with the
previously optimized axes. The optimization strategy for axis and speed controller selected
from the user interface is deployed and stored in the XML file for this axis (\user\sinumerik\data
\optimization\AST_AX4_A1....xml).
Special functions
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
T4: Automatic retuning with AST - only 840D sl
; Add axis 4, accept optimization strat-
egy from the standard optimization file
(XML file), do not consider the axis for
an optimization of the path interpola-
tion.
; Remove the current DDS from the data
set list.
; Add DDS3 to the data set list and over-
write after optimization.
; Save the original state in a file.
; Start the optimization by activating
the results.
; Start optimization without activation
of the results, if necessary, check the
results first.
; Save the optimization data in an XML
file.
; Export the speed-controlled system.
; Fetch the inertia.
; Activate axis-optimum results, save
the boot files.
; Close the optimization session.
12.5 Examples
539