Siemens SINUMERIK 840D Function Manual page 670

H1: Manual traversing
17.8 Manual traversing of geometry axes/orientation axes
MD21166 $MC_JOG_ACCEL_GEO [<geometry axis>]
With <geometry axis> = 0, 1, 2
The maximum jerk when manually traversing geometry axes in the SOFT acceleration mode
(acceleration with jerk limitation) can be specified for each channel via the machine data:
MD21168 $MC_JOG_JERK_GEO [<geometry axis>]
With <geometry axis> = 0, 1, 2
Orientation axes
The maximum jerk when manually traversing orientation axes can be specified for each
channel via the machine data:
MD21158 $MC_JOG_JERK_ORI [<orientation axis>]
For MD21158 to take effect, the channel-specific jerk limitation for the manual traversing of
orientation axes must be enabled via the following machine data:
MD21159 $MC_JOG_JERK_ORI_ENABLE == TRUE
Alarms
Alarm 20060
If the axis is not defined as a geometry axis, alarm 20060, "Axis cannot be traversed as a
geometry axis", is output if you attempt to manually traverse it as a geometry axis in JOG mode.
Alarm 20062
Alarm 20062, "Axis already active", is triggered in the case that a geometry axis/orientation axis
is manually traversed under the following conditions:
● The axis is already being traversed in JOG mode via the axial PLC interface.
● A frame for a rotated coordinate system is already active and another geometry axis in this
coordinate system is traversed in JOG mode with the traversing keys.
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Axes and spindles
Function Manual, 06/2019, A5E47437747B AA