Signals From Axis/Spindle (Db31 - Siemens SINUMERIK 840D sl Function Manual
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- Function manual (2184 pages) ,
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Z1: NC/PLC interface signals
19.10 Reference point approach (R1)
DB31, ...
DBX2.4 - DBX2.7
Reference point value 1 to 4
Special cases,
If the machine axis has arrived at the reference point and none of the four "reference point value 1
errors, ......
to 4" interface signals has been set, the value of the reference point is automatically set to 1.
Corresponding to ....
MD34100 $MA_REFP_SET_POS (reference point value)
DB31, ...
DBX12.7
Reference point approach delay
Edge evaluation: no
Signal state 1 or
The machine axis is positioned on the reference cam.
edge change
0 → 1
Signal state 0 or
The machine axis is positioned in front of the reference cam. An appropriately long reference cam
edge change
(up to the end of the traversing range) should be used to prevent the machine axis from being located
1 → 0
behind (after) the referencing cam.
Corresponding to ....
DB31, ... DBX2.4 - DBX2.7 (reference point values 1 to 4)
19.10.4
Signals from axis/spindle (DB31, ...)
DB31, ...
DBX60.4
Referenced/synchronized 1
Edge evaluation:
Signal state 1 or
Axes:
edge change
When being referenced, if the machine axis has reached the reference point (incremental measuring
0 → 1
systems) or the target point (for length measuring system with distance-coded reference marks), then
the machine axis is referenced and the following interface signal is set:
DB31, ... DBX60.4 (referenced/synchronized 1)
(depending on which position measuring system is active when referencing).
Spindles:
After power-on, a spindle is synchronized the latest after one spindle revolution (360 degrees) (the
zero mark passed or the Bero responded).
Signal state 0 or
The machine axis/spindle with position measuring system 1 is not referenced/synchronized.
edge change
1 → 0
Corresponding to ...
DB31, ... DBX1.5 (position measuring system 1)
1634
Signal(s) updated: cyclic
Signal(s) updated:
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions
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