Velocity Matching (Axis) - Siemens SINUMERIK 840D sl Commissioning Manual

10.5.10

Velocity matching (axis)

Max. axis velocity
The value entered in machine data
● 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 parts program when rapid traverse (G00)
is programmed.
The maximum linear or rotary axis velocity should be entered in the machine data in
accordance with MD 30300: IS_ROT_AX[n].
Rapid traverse in JOG mode
The value entered in machine data
● MD32010 JOG_VELO_RAPID[n] (rapid traverse in JOG mode) or
● MD32040 JOG_REV_VELO_RAPID[n] (revolutional feedrate in JOG mode with rapid
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.
JOG axis velocity
The value entered in machine data
● MD32020 JOG_VELO[n] (axis velocity in JOG mode) or
● 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 from MD32020 JOG_VELO[n] or MD32050 JOG_REV_VELO[n] is used only if
● for linear axes: SD41110 JOG_SET_VELO = 0
● for rotary axes: SD41130 JOG_ROT_AX_SET_VELO = 0
or
● for reverse feed: SD41120 JOG_REV_SET_VELO = 0.
If the above mentioned setting data are unequal to 0, the JOG velocity results as follows:
1. SD: JOG_REV_IS_ACTIVE (revolutional feedrate in JOG mode) = 0
IBN CNC: NCK, PLC, drive
Commissioning Manual, 07/2007, 6FC5397-2AP10-3BA0
traverse override)
=> Linear feedrate (G94)
– Linear axes:
NCK start-up
10.5 Parameterize axis data
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