Siemens SINUMERIK 828D Commissioning Manual page 223

This circle displays the results after the feed precontrol has been optimized. However, the
mean radius is 0,0019 mm too large:
X1: active measuring system
Z1: active measuring system
Parameters / machine data
MD32200
p1460
p1462
p1463
p1440
MD32610
MD32620
MD32810
MD32400
MD32402
MD32410
Example 2 for optimization
This circle shows the effect of a slightly different time constant for the axial jerk filter. The time
constant is adapted in order to correct this type of error:
Parameters / machine data
MD32400
MD32402
MD32410
X1: active measuring system
Z1: active measuring system
CNC commissioning
Commissioning Manual, 10/2015, 6FC5397-3DP40-5BA3
$MC_POSCTRL_GAIN
SPEEDCTRL_GAIN1
SPEEDCTRL_INTEGRATOR_TIME_1
SPEEDCTRL_REF_MODEL_FREQ
NUM_SPEED_FILTERS
$MC_VELO_FFW_WEIGHT
$MC_FFW_MODE
$MC_EQUIV_SPEEDCTRL_TIME
$MC_AX_JERK_ENABLE
$MC_AX_JERK_MODE
$MC_AX_JERK_TIME
$MC_AX_JERK_ENABLE
$MC_AX_JERK_MODE
$MC_AX_JERK_TIME
Parameter
Radius:
Feedrate:
Measure‐
ment time:
X1: active measuring system
Z1: active measuring system
Representation
Resolution:
Display of. mean radius
Radius:
Delta R:
X axis
8.500
3.01
6.18
106.3
0.0022
0.012
X axis
0.012
Parameter
Radius:
Tuning
6.6 Circularity test
10.00000 mm
3000.00000 mm/min
1257 ms
0.01000 mm
10.00190 mm
4.02698 μm
Z axis
8.500
3.89
6.18
106.3
0 0
1.0 1.0
3 3
0.0022
1 1
2 2
0.012
Z axis
1 1
2 2
0.0125
10.00000 mm
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