Siemens SINUMERIK 840D sl Function Manual page 175

At this point in time, the NCK has prepared axis 1 for synchronization and registers this to the
interface signal:
DB31, ... DBB101 with:
In addition, the following steps must be taken:
• RESET
• Read off values in machine coordinate system:
e.g.
X = 0.941
Y = 0.000
XF = 0.000
• Enter the X value of master axis 1 with inverted sign in the machine data of slave axis 3:
MD34090 $MA_REFP_MOVE_DIST_CORR = - 0.941 (reference point offset/absolute
offset)
Note
This MD is effective after power ON. To avoid having to perform a power ON now, the value
can also be entered in the following machine data:
MD34080 $MA_REFP_MOVE_DIST (reference point distance)
The MD is then valid after a RESET.
• Start referencing again for axis 1 (master axis) with the modified machine data
• Wait until message "10654 Channel 1 Waiting for synchronization start" appears
• At this point in time, the NCK has prepared axis 1 for synchronization and registers this to
the interface signal:
DB31, ... DBB101(gantry)
Special Functions
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
G1: Gantry axes
2.7 Examples
175