Siemens SINUMERIK 840D sl Function Manual page 289

05.08
36946
MD number
Default value: 20.
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
corresponds with ...
Additional references
36948
MD number
Default value: 300.
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
corresponds with ...
Additional references
36949
MD number
Default value: 6.
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
corresponds with ...
Additional references
© Siemens AG 2008 All Rights Reserved
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
$MA_SAFE_VELO_X
Speed limit n
x
Min. input limit: 0.
Protection level: 7/2
This machine data defines the limit speed n
If this velocity limit is fallen below, SGA "n < n
/FBSI/ see Chapter 6.6: "SGA "n < n
$MA_SAFE_STOP_VELO_TOL
Speed tolerance for safe acceleration monitoring
Min. input limit: 0.
Protection level: 7/2
Actual speed tolerance for safe acceleration monitoring (SBR).
After the safe acceleration monitoring has been activated (by initiating a Stop B or C), then
this tolerance is applied to the actual speed.
It is not permissible that the actual velocity is greater than the limit that is therefore speci-
fied.
Otherwise, a Stop A will be initiated. This means that if the drive accelerates, this will be
identified very quickly.
/FBSI/ see Chapter 6.4: "Safe acceleration monitoring (SBR)"
(a recommended setting and setting formula are specified in this Chapter).
$MA_SAFE_SLIP_VELO_T OL
Speed tolerance, slip
Min. input limit: 0.
Protection level: 7/2
Speed difference that, for a 2–encoder system, is tolerated between the motor and load
sides without the crosswise data comparison between the drive and NCK signaling an
error.
MD 36949 is only evaluated if MD $MA_SAFE_FUNCTION_ENABLE, bit 3 is set.
/FBSI/ see Chapter 5.4.6: Actual value synchronization
8.1 Machine data for SINUMERIK 840D sl
Max. input limit: 6 000.
for the SGA "n < n ".
x x
" is set.
x
" and "SG active""
x
Max. input limit: 120 000.
Max. input limit: 6000.
Data Description
Unit:
mm/min, rev/min
Unit: mm/min, rev/min
Unit:
mm/min, rev/min
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