Siemens SINUMERIK 808D ADVANCED Parameter Manual page 259

The machine axis accelerates to the velocity specified in MD34040
$MA_REFP_VELO_SEARCH_MARKER (reference point creep velocity) in the opposite direction
to that specified in MD34010 $MA_REFP_CAM_DIR_IS_MINUS (reference point approach in
minus direction).
If the axis leaves the reference cam (NC/PLC interface signal DB380x DBX1000.7
(Reference point approach delay) is reset) the control is synchronized with the first
zero mark.
MD34050 $MA_REFP_SEARCH_MARKER_REVERSE = 1
Synchronization with rising reference cam signal edge
The machine axis accelerates to the velocity defined in MD34020
$MA_REFP_VELO_SEARCH_CAM (reference point creep velocity) in the opposite direction to
that specified in the MD34010 $MA_REFP_CAM_DIR_IS_MINUS. If the axis leaves the
reference cam (NC/PLC interface signal DB380x DBX1000.7 (Reference point approach
delay) is reset), the machine axis decelerates to a halt and accelerates in the
opposite direction towards the reference cam at the velocity specified in MD34040:
$MA_REFP_VELO_SEARCH_MARKER. When the reference cam is reached (NC/PLC interface
signal DB380x DBX1000.7 (Reference point approach delay) is enabled) the control is
synchronized with the first zero mark.
MD irrelevant to:
Linear measuring systems with distance-coded reference marks
34060 REFP_MAX_MARKER_DIST
mm, degrees Maximum distance to reference mark
-
808d-me42 1
808d-me62 1
808d-te42 1
808d-te62 1
808d-mte40 1
808d-mte60 1
Description:
For incremental measuring systems:
If, after leaving the reference cam (NC/PLC interface signal DB380x DBX1000.7
(Reference point approach delay) is reset), the machine axis travels a distance
defined in MD34060: $MA_REFP_MAX_MARKER_DIST without detecting the zero mark, the axis
stops and alarm 20002 "Zero mark missing" is output.
For linear measuring systems with distance-coded reference marks:
If the machine axis travels a distance defined in MD34060 $MA_REFP_MAX_MARKER_DIST
from the starting position without crossing two zero marks, the axis stops and alarm
20004 "Reference mark missing" is output.
34070 REFP_VELO_POS
mm/min, rev/min Reference point positioning velocity
-
808d-me42 -
Parameter Manual
Parameter Manual, 08/2015, 6FC5397-8EP40-0BA1
20.0, 20.0, 20.0, 20.0, (0./ 0.)
20.0, 20.0, 720.0, 720.0
20.0, 20.0, 20.0, 20.0, (0./ 0.)
20.0, 20.0, 720.0,
720.0, 720.0, 720.0
20.0, 20.0, 20.0, 20.0, (0./ 0.)
20.0, 20.0, 720.0, 720.0
20.0, 20.0, 20.0, 20.0, (0./ 0.)
20.0, 20.0, 720.0,
720.0, 720.0, 720.0, ...
(20.0/ 20.0)/(720.0/ (0./ 0.)
720.0), (20.0/ 20.0)/
(720.0/ 720.0), (20.0/...
(20.0/ 20.0)/(720.0/ (0./ 0.)
720.0), (20.0/ 20.0)/
(720.0/ 720.0), (20.0/...
10000., 10000., (0./ 0.)
10000., 720.
3.4 Axis-specific machine data
A03, A11 G1, R1, S1
DOUBLE Reset
(1.e300/ 1.e300) 2/2
(1.e300/ 1.e300) 2/2
(1.e300/ 1.e300) 2/2
(1.e300/ 1.e300) 2/2
(1.e300/ 1.e300) 2/2
(1.e300/ 1.e300) 2/2
A03, A11, A04 G1, R1
DOUBLE Reset
(1.e300/ 1.e300) 2/2
Machine data
259