Siemens SINUMERIK 808D Parameter Manual page 293

Description:
Basic setting of the acceleration response of the axis (positioning, oscillation, JOG,
path motions):
FALSE: No acceleration reduction
TRUE: Acceleration reduction active
MD is active only when MD32420 $MA_JOG_AND_POS_JERK_ENABLE = FALSE.
The settings in MD35220 $MA_ACCEL_REDUCTION_SPEED_POINT and MD35230
$MA_ACCEL_REDUCTION_FACTOR are always active for spindles (in spindle mode).
Remark:
This MD also influences the path motion with SOFT, BRISK, TRAFO
35242 ACCEL_REDUCTION_TYPE
- Type of acceleration reduction
CTEQ
- -
Description:
Shape of acceleration reduction characteristic with DRIVE velocity control
0:
1:
2:
The end point of the acceleration curve for spindles depending on MD35035
$MA_SPIND_FUNCTION_MASK Bit23 is selected either from the maximum speed determined
from MD35100 $MA_SPIND_VELO_LIMIT, MD35130 $MA_GEAR_STEP_MAX_VELO_LIMIT and MD35135
$MA_GEAR_STEP_PC_MAX_VELO_LIMIT or the relevant currently active speed limit.
35300 SPIND_POSCTRL_VELO
rev/min Position control activation speed
CTEQ
- 6
Description:
When positioning a spindle that is not in position control mode from a high speed, the
position control is not activated until the spindle has reached or falls below the
velocity defined in MD35300 $MA_SPIND_POSCTRL_VELO.
The speed can be changed with FA[Sn] from the part program. Please refer to the
documentation:
/FB1/ Function Manual, Basic Functions; Spindles (S1), section "Spindle mode
'positioning operation" for a description of the spindle behavior under various
supplementary conditions (positioning from rotation, positioning from standstill).
Note:
The active speed from MD35300 $MA_SPIND_POSCTRL_VELO cannot exceed the max. speed set
in MD35135 $MA_GEAR_STEP_PC_MAX_VELO_LIMIT. If MD35135
$MA_GEAR_STEP_PC_MAX_VELO_LIMIT = 0, the value is limited to 90% of MD35130
$MA_GEAR_STEP_MAX_VELO_LIMIT.
Related to:
MD35350 $MA_SPIND_POSITIONING_DIR (direction of rotation during positioning from
standstill, if no synchronization is available)
MD35100 $MA_SPIND_VELO_LIMIT (chuck speed)
35310 SPIND_POSIT_DELAY_TIME
s Positioning delay time
CTEQ
- 6
Description:
Positioning delay time.
Parameter Manual
List Manual, 01/2017
1
Constant
Hyperbolic
Linear
500.0, 500.0, 500.0,
500.0, 500.0, 500.0
0.0, 0.05, 0.1, 0.2, 0.4,
0.8
A04
BYTE
0 2
A06, A04
DOUBLE
0.0 -
A06, A04
DOUBLE
0.0 -
Machine data
3.4 Axis-specific machine data
B1, B2
Reset
1/1 M
P3 pl, P3 sl, R1, S1
NEW CONF
2/2 M
S1
NEW CONF
2/2 M
293