Siemens Sinumerik 840D sl Function Manual page 182

Safety functions integrated in the system/drive
6.8 Safety software cams and safety cam track (SN)
Value range:
100...114 = cam range 0...14 at cam track 1
200...214 = cam range 0...14 at cam track 2
300...314 = cam range 0...14 at cam track 3
400...414 = cam range 0...14 at cam track 4
The "hundreds" position defines which cam track is assigned to the cams. The
"tens" and "ones" positions contain the numerical value that is signaled to the SPL
as SGA "cam range".
Please note:
S It is not possible to assign a cam a multiple number of times to several tracks.
A multiple assignment only functions if an additional cam is parameterized with
the same cam position and assigned to another cam track.
S Cam positions can be freely assigned to a cam range.
S Cams that have not been assigned do not appear on the cam track.
S The cams on a cam track must not overlap.
S The cams on a cam track must have a certain minimum length.
S The cams on a cam track must have a certain minimum distance between
them.
Evaluation of the parameterization
For the evaluation, the following checks are made (for the NCK and drive):
S If $MA_SAFE_CAM_ENABLE > 0, then $MA_SAFE_FUNCTION_ENABLE, bit
8--15 must be = 0.
S If $MA_SAFE_CAM_ENABLE > 0, then it is not permissible that the enable bit
for cam synchronization is set (($MA_SAFE_FUNCTION_ENABLE, bit 7 = 0)
S Modulo cams are not permissible ($MA_SAFE_MODULO_RANGE must be 0 if
$MA_SAFE_CAM_ENABLE > 0).
S Checking the cam length:
$MA_SAFE_CAM_POS_PLUS[0...29] -- $MA_SAFE_CAM_POS_MINUS[0...29] >=
S Checking the distance between 2 cams on a cam track:
$MA_SAFE_CAM_POS_MINUS[y] -- $MA_SAFE_CAM_POS_PLUS[x] >=
S It is not permissible to parameterize two cams on the same track and range:
Example:
$MA_SAFE_CAM_TRACK_ASSIGN[2] = 205;
$MA_SAFE_CAM_TRACK_ASSIGN[5] = 205;
As a consequence, it is not possible to assign more than 15 cams to a cam
track.
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
$MA_SAFE_CAM_TOL + $MA_SAFE_POS_TOL
$MA_SAFE_CAM_TOL + $MA_SAFE_POS_TOL
© Siemens AG 2015 All Rights Reserved
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