Siemens SINUMERIK 840D Function Manual page 679

DB31, ... DBX75.6 (JOG JOG travel to position active)
Note
Activation is not possible:
● during an NC reset
● In case of impending emergency stop
● During processing of an ASUP
● if the "approaching fixed point JOG" function is already activated
No alarm message occurs. Delayed activation takes place after closure or after
acknowledgement of the active function.
Sequence
Approaching the position is started with the traverse keys or the handwheel.
The axis traverses until it comes to an automatic standstill at the position to be approached.
When the position is reached with "Exact stop fine", the following NC/PLC interface signal is
output:
DB31, ... DBX75.7 (JOG position reached)
Approach a different position
If the content of the setting data SD43320 is changed while approaching a position, then the
axis movement is canceled and the following alarm is output:
Alarm 17822 "Channel %1 Axis %2 jogging to position: position changed"
The JOG traverse must be triggered again to approach the new position.
Note
To avoid the alarm message, the machine user should proceed as follows:
1. Cancel the current traverse movement with residual distance deletion.
2. Enter a new position in SD43320 after axis has come to a standstill.
3. Restart the JOG motion.
Retraction from the position/deactivation
To retract from the position, the function "Position travel in JOG" must be deactivated. This is
done by resetting the activation signal to "0".
DB31, ... DBX13.3 = 0
The deactivation also resets the message signals DB31, ... DBX75.6 and DB31, ... DBX75.7.
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA
H1: Manual traversing
17.10 Position travel in JOG
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