Function Manual
01/2017
57
Commencing start-up
Referencing
The following steps must be taken:
● Select "REF.POINT" operating mode
● Start referencing for the leading axis (axis 1)
● Wait until message "10654 Channel 1 Waiting for synchronization start" appears.
At this point, the NCK has prepared the leading axis for synchronization.
NCK-PLC interface DB390x.DBB5005: Leading axis ready for synchronization:
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 the leading axis (axis 1) with inverted sign in the machine data of the synchronized axis (axis 3):
MD34090 REFP_MOVE_DIST_CORR = - 0.941
Note
This MD is effective af
ter POWER ON. To avoid having to perform a POWER ON in advance, this value can also be
entered in the following machine data:
MD34080 REFP_MOVE_DIST (reference point distance)
The MD is then valid after a RESET.
● Start referencing again for axis 1 with the modified machine data
● Wait until message "10654 Channel 1 Waiting for synchronization start" appears
● At this point, the NCK has prepared axis 1 for synchronization and sends the same interface signal as shown in the
image above:
● Examine actual positions of machine. Case A or B might apply:
Possible results of referencing the leading axis:
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