Axis­specific Referencing - Siemens SINUMERIK 828D Function Manual

R1: Reference point approach
15.2 Axis­specific referencing
15.2 Axis­specific referencing
In axis-specific reference point approach, reference point approach must be initiated individually for each
machine axis that is to be referenced.
Selecting mode and machine function
Before starting reference point approach of the machine axes, you must first place the relevant mode group in
JOG or MDA mode:
DB11, ... DBX0.2 (active JOG mode)
DB11, ... DBX0.1 (active JOG mode)
Then machine function REF (reference point approach) must be selected:
DB11, ... DBX1.2 (REF machine function)
Start of reference point approach
In axis-specific reference point approach, each machine axis must be started individually.
Reference point approach is started with the axis-specific traversing keys:
DB31, ... DBX4.6 (Traversing key minus)
DB31, ... DBX4.7 (Traversing key minus)
Direction enable
To avoid faulty operation, the direction release must be parameterized:
MD34010 $MA_REFP_CAM_DIR_IS_MINUS (approach reference point in minus direction)
The direction enable specifies which traversing key starts the reference point approach:
Value Description
0 Reference point approach in plus direction
1 Reference point approach in minus direction
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Function Manual, 09/2011, 6FC5397-0BP40-2BA0
Basic Functions