Setting Warning And Trip Limits - Siemens SINUMERIK 840D sl Function Manual

G1: Gantry axes
2.7 Examples
• Examine actual positions of machine. Case A or B might apply:
Figure 2-3
If Case A applies, the synchronization process can be started immediately. See step "Start
synchronization". If Case B applies, the offset "diff" must be calculated and taken into
account:
• Measuring of diff
• By using two appropriate, right-angled reference points R' and R" in the machine bed (right
in picture), the difference in position in JOG can be traversed. The diff offset can then be
read as the difference in the position display. The diff offset must be entered in the
machine data of axis 3 (synchronized axis):
MD34100 $MA_REFP_SET_POS
Continue with Step 1 (see above).
• Start gantry synchronization. PLC sets:
DB31, ... DBX29.4 = 1 (start synchronization of gantry)
2.7.4

Setting warning and trip limits

As soon as the gantry grouping is set and synchronized, the following machine data must still
be set to correspond:
MD37110 $MA_GANTRY_POS_TOL_WARNING (gantry warning limit)
MD37120 $MA_GANTRY_POS_TOL_ERROR (gantry trip limit)
176
Possible results after referencing of axis 1 (master axis)
Function Manual, 09/2011, 6FC5397-2BP40-2BA0
Special Functions