Manual Traversing Of Geometry Axes/Orientation Axes - Siemens SINUMERIK 840D Function Manual

H1: Manual traversing

17.8 Manual traversing of geometry axes/orientation axes

Interface signals
When manually traversing the spindles, the interface signals between NC 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 setpoint range)
17.8 Manual traversing of geometry axes/orientation axes
Simultaneous travel
Only one geometry axis can be traversed continuously or incrementally at one time using the
traversing keys. Where an attempt is made to traverse more than one geometry axis, alarm
20062 "Axis already active" is output. However, three geometry axes can be traversed
simultaneously using handwheels 1 to 3.
Transverse axis
If a geometry axis is defined as transverse axis (see MD20100 $MC_DIAMETER_AX_DEF)
and radius programming has been selected, the following applies:
● Continuous travel:
There are no differences when a transverse axis is traversed continuously.
● Incremental travel:
Only half the distance of the selected increment size is traversed. For example, with INC10
the axis only traverses 5 increments when the traversing key is pressed.
● Traversing with the handwheel:
As for incremental travel, with the handwheel only half the distance is traversed per
handwheel pulse.
References:
Function Manual Basic Functions; Transverse Axes (P1)
668
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA