Manual Traversing Of The Spindle - Siemens SINUMERIK 840D sl Function Manual

Figure 4-4
Supplementary conditions
NC stop
With NC stop present, no travel command and, therefore, no travel request is output. There is
an exception with DRF travel: If DRF travel is permitted in the NC stop state via machine data
MD20624 $MC_HANDWH_CHAN_STOP_COND (bit 13 == 1), the behavior corresponds to
that of handwheel travel.
4.7

Manual traversing of the spindle

Spindle mode
Manual traversing of the spindle is possible both in positioning mode (spindle is in position
control) and in open-loop control mode.
Velocity
The velocity applied for the manual traversing of the spindles is defined by the general setting
data:
SD41200 $SN_JOG_SPIND_SET_VELO (speed of spindle in JOG mode)
If "0" is entered in SD41200, the axis-specific machine data takes effect:
MD32020 $_MA_JOG_VELO (conventional axis velocity)
The maximum speeds of the active gear stage are also considered when manually traversing
a spindle.
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Signal-time diagram:Handwheel travel with velocity specification, stop condition is an abort
criterion
H1: Manual and handwheel travel
4.7 Manual traversing of the spindle
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