Siemens SINUMERIK 840Di Manual page 352

10 NC Start-Up with HMI Advanced
10.5 Axes and spindles
IS "Reference point approach delay"
(DB31, ... DBX12.7)
IS "Traversing command plus"
(DB31, ... DBX64.7)
IS "Traversing command minus"
(DB31, ... DBX64.6)
IS "Traversing key plus/minus"
(DB31, ... DBX4.7 and 4.6)
IS "Referenced/synchronized"
(DB31, ... DBX60.4 and 60.5)
Zero marker of position
measuring system
MD 34020: REFP_VELO_SEARCH_CAM
Reference-point approach velocity
MD 34070: REFP_VELO_POS
Reference-point positioning velocity
MD 34040: REFP_VELO_SEARCH_MARKER
Reference-point shutdown velocity
Fig. 10-25 Referencing sequence with incremental measuring system (example)
Phase 1:
Traversing to the
reference cam
10-352
Velocity
Phase 1
The following machine data and interface signals are important:
S
MD34010: REFP_VELO_SEARCH_CAM (reference cam approach in the
negative direction)
S
MD34020: REFP_VELO_SEARCH_CAM (reference cam approach velocity)
S
MD34030: REFP_MAX_MARKER_DIST
(maximum distance to reference cam)
S
MD 34092: REFP_CAM_SHIFT (electr. cam offset, incremental measuring
systems with equidistant zero markers)
S
IS: DB21, ... DBX36.2 ("All axes to be referenced are referenced"
S
IS: DB31, ... DBX4.7/DBX4.6 ("Traversing keys plus/minus")
S
IS: DB31, ... DBX12.7 ("Reference point approach delay")
S
IS: DB31, ... DBX60.4, DBX60.5 ("Referenced/synchronized 1, 2").
Phase 2 Phase 3
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03
t