Siemens SINUMERIK 840D sl Function Manual page 182

H1: Manual and handwheel travel
4.7 Manual traversing of the spindle
References:
Function Manual Basic Functions; Spindles (S1)
Spindle override
The velocity during manual traversing of the spindle can be influenced by the spindle
compensation switch.
Acceleration
As a spindle often uses many gear stages in speed-control and position-control modes, the
acceleration associated with the current gear stage is always applied to the spindle in JOG
mode.
References:
Function Manual Basic Functions; Spindles (S1)
Interface signals
When manually traversing the spindles, the interface signals between NCK and PLC have the
same effect as for the machine axes.
The interface signals DB31, ... DBX60.7 or DBX60.6 (position reached with fine or coarse exact
stop) are only set if the spindle is in position control.
Spindle-specific interface signals
In JOG mode, the following interface signals to the spindle have no effect:
● DB31, ... DBX17.6 (invert M3/M4)
● DB31, ... DBX18.6/7 (oscillation rotation direction right/left)
● DB31, ... DBX18.5 (oscillation enable)
● DB31, ... DBX16.7 (delete S value)
In JOG mode, the following interface signals from the spindle are not set:
● DB31, ... DBX83.7 (clockwise actual direction of rotation)
● DB31, ... DBX83.5 (spindle in set range)
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Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions