Machine Data Of The Actual Value System - Siemens SINUMERIK 840D sl Function Manual

Figure 7-3
However, due to control processes, the axes should not reach their maximum velocity
(MD32000 $MA_MAX_AX_VELO) at 100% of the speed setpoint, but at 80% to 95%.
In case of axes, whose maximum speed is attained at around 80% of the speed setpoint range,
the default value (80%) of the machine data:
MD32000 $MA_MAX_AX_VELO (maximum axis velocity)
can be taken over.
7.4.5

Machine data of the actual value system

Axis-specific machine data
To parameterize the actual value system, the following axis-specific machine data should be
set:
Encoder and parameter set-independent machine data:
$MA_
MD30200 NUM_ENCS
MD30300 IS_ROT_AX
MD30310 ROT_IS_MODULO
MD30320 DISPLAY_IS_MODULO
MD30330 MODULO_RANGE
MD30340 MODULO_RANGE_START
MD31030 $MA_LEADSCREW_PITCH
MD31064 $MA_DRIVE_AX_RATIO2_DENOM
MD31066 $MA_DRIVE_AX_RATIO2_NUMERA
MD32000 $MA_MAX_AX_VELO
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
G2: Velocities, setpoint / actual value systems, closed-loop control
Maximum speed setpoint
7.4 Setpoint/actual-value system
Meaning
Number of encoders
Rotary axis / spindle
Modulo conversion for rotary axis / spindle
360-degree modulo display for rotary axis or
spindle
Size of the modulo range.
Start position of the modulo range.
Leadscrew pitch
Intermediate gear denominator
Intermediate gear numerator
Maximum axis velocity
347