Siemens SINUMERIK 840Di sl - 9.2 Machine data

NC Commissioning with HMI Advanced
11.5 Axes and spindles
Manual
432 Commissioning Manual, 05/2008, 6FC5397–4CP10–4BA0
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Figure 11-23 Signal chart: Referencing with an incremental measuring system (principle)
Phase-independent data
The following machine data and interface signals are independent with respect to the
individual phases of reference point approach:
● MD11300 $MN_JOG_INC_MODE_LEVELTRIGGRD (INC/REF in jog mode)
● MD34000 $MA_REFP_CAM_IS_ACTIVE (axis with reference cam)
● MD34110 $MA_REFP_CYCLE_NR (axis sequence for channel-specific reference point
approach)
● MD30240 $MA_ENC_TYPE (encoder type)
● MD34200 $MA_ENC_REFP_MODE (referencing mode)
● IS DB21, ... DBX1.0 ("Activate referencing")
● IS DB21, ... DBX33.0 ("Activate referencing")
Phase 1: Traversing to the reference cam
The following machine data and interface signals are relevant:
● MD34010 $MA_REFP_CAM_DIR_IS_MINUS (approach reference cam in minus direction)
● MD34020 $MA_REFP_VELO_SEARCH_CAM (Reference cam approach velocity)
● MD34030 $MA_REFP_MAX_CAM_DIST (maximum distance to the reference cam)
● MD34092 $MA_REFP_CAM_SHIFT (electr. cam offset, incremental measuring systems
with equidistant zero markers)
● IS DB21, ... DBX36.2 ("All axes with obligatory reference point are referenced")
● IS DB31, ... DBX4.7/DBX4.6 ("Traversing keys plus/minus")