Siemens SINUMERIK 840C Installation Instructions Manual page 240

09.95
336*
Default value
5
NC MD 336* is used to define the speed at which the contour monitor is to be activated. At
speeds below this axis-specific threshold speed, the contour monitor remains inactive. The
zero speed monitor checks for illegal axis movements when the axes are at rest (alarm 112*).
For details, refer to Section entitled "Axis (Analog) and Spindle Installation".
344*
Default value
360 000
NC MD 344* must define the compensation value for a rotary axis, which is normally 360 000
(corresponding to one revolution of the rotating table).
When specifying values > 360 000, care must be taken that a corresponding number of
leadscrew error compensation points are provided (for details on leadscrew error
compensation, see Section entitled "Functional Descriptions").
356*
Default value
If the set warning limit is exceeded, interface signal DB 32, DR K, bit 5 is set.
360*
Default value
1
NC MD 360* is used to allocate the axes to the mode groups, i.e. to ensure that a channel will
traverse only the axes in its mode group and not those of other mode groups. Within a mode
group, several channels can process an axis successively, provided that axial synchronization
of the "Block End Value" for that axis was carried out (NC STOP NC START) if the axis
was previously traversed by another channel.
Mode groups without axes are possible.
_______
1) The warm restart function enables the allocation of axes to another mode group without a hardware reset and
without loss of the axes reference points (for a detailed description of the warm restart function, see Sect. 12)
©
Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
6 NC Machine Data (NC MD), NC Setting Data (NC SD)
Contour threshold speed
Lower input limit Upper input limit
+0 1 000 000
Rotary axis modulo value for LEC
Lower input limit Upper input limit
±0 92 160 000
IKA warning limit (as from SW 3)
Lower input limit Upper input limit
– 9999 9999 +9999 9999
Mode group
Lower input limit Upper input limit
+1
6 (as from SW 4)
6FC5197- AA50
6.4 Axis-specific MD 1 (axial data 1)
Units
1 000 units/min (IS)
Units
units (MS)
Units
units (MS)
Units
+1, 2
Active on
Power On
Active on
NC Stop
Active
at once
Active on
1)
Power On
–
6–55