01/2007
11.5 Axes and spindles
11-344
© Siemens AG 2007 All Rights Reserved
SINUMERIK 840Di sl Manual (HBIsl) – 01/2007 Edition
11.5.17 Velocity matching (axis)
The value entered in machine data
S MD32000: MAX_AX_VELO[n] (max. axis velocity)
is the limit velocity up to which a machine axis can accelerate (rapid traverse
limiting). It depends on the machine and drive dynamics and the limit frequency
of actual–value acquisition.
The max. axis velocity is used for traversing in the part program when rapid
traverse (G00) is programmed.
Depending on MD30300: IS_ROT_AX[n], the maximum linear and rotary axis
velocity must be entered in the machine data.
The value entered in machine data
S MD32010: JOG_VELO_RAPID[n] (rapid traverse in JOG mode)
or
S MD32040: JOG_REV_VELO_RAPID[n] (revolutional feedrate in JOG mode
with rapid traverse override)
is the velocity at which the machine axis traverses in JOG mode with the rapid
traverse override key actuated and with an axial feedrate override of 100%.
The entered value may not exceed the max. permissible axis velocity.
This machine data will not
be used for the programmed rapid traverse G00.
The value entered in machine data
S MD32020: JOG_VELO[n] (axis velocity in JOG mode) or
S MD32050: JOG_REV_VELO[n] (revolutional feedrate in JOG mode)
is the velocity at which the machine axis traverses in JOG mode with an axial
feedrate override of 100%.
The velocity defined in MD32020: JOG_VELO[n] or MD32050:
JOG_REV_VELO[n] will only be used if
S for linear axes: SD41110: JOG_SET_VELO = 0
S for rotary axes: SD41130: JOG_ROT_AX_SET_VELO = 0
or
S at revolutional feed: SD41120: JOG_REV_SET_VELO = 0.
Max. axis velocity
Rapid traverse in
JOG mode
Axis velocity in
JOG mode
11 NCK Commissionin
with HMI Advanced
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