Siemens SINUMERIK 840Di - Page 354

06.03
10.5 Axes and spindles
10-354
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
– Alarm 20002 “Zero mark missing”
is output.
The following machine data and interface signals are important:
 MD34070: REFP_VELO_POS (reference-point positioning velocity)
 MD34080: REFP_MOVE_DIST (reference point distance to the zero mark)
 MD34090: REFP_MOVE_DIST_CORR (reference-point offset additive)
 MD34100: REFP_SET_POS (reference point value).
 IS: DB31, ... DBX2.4, 2.5, 2.6, 2.7 (“Reference point values 1...4”)
 IS: DB31, ... DBX60.4, DBX60.5 (“Referenced/synchronized 1, 2”).
Properties of phase 3:
 Feed override (the feed override switch) is active.
 Feed stop (channel-specific and axis-specific) is active.
 The machine axis can be stopped and started again using NC Stop/NC
Start.
/FB1/ Description of Functions, Basic Machine,
R1 Reference Point Approach
Section: Referencing with incremental measurement systems
Phase 3:
Traversing to the
reference point
References
10 NC Start-U
p
with HMI Advanced