Siemens SINUMERIK 840D sl Function Manual page 367

36946
Data type: DOUBLE
Meaning:
corresponds with ...
Additional reference
36947
MD number
Default value: 10 - for mm/min, inch/min
default value: 10 for rpm
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
Additional reference
36948
MD number
Default value: 300 - for mm/min, inch/ mi‐
nute default value: 50. for rpm
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
Additional reference
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
$MA_SAFE_VELO_X
This machine data defines the limit speed n
If this velocity limit is fallen below, SGA "n < n
If this machine data has a value of 0, then function "n<n
Note:
To evaluate the SGA "n<n
x
LO_X_STATUS_OUTPUT.
/FBSIsl/ see Chapter "Safe speed range detection "n<nx" (Page 148)":
$MA_SAFE_VELO_X_HYSTERESIS
Speed limit n<n
x
Min. input limit: 0
min. Input limit: 0
Sets the hysteresis threshold for generating the SGA n<n
In addition to the hysteresis, this MD is also used to check the speed in the two monitoring
channels against threshold n
otherwise, Stop F with fault identifier 2 is output.
The following must apply: MD36947 $MA_SAFE_VELO_X_HYSTERESIS less than or equal
to 3/4 MD36946 $MA_SAFE_VELO_X
The function "Synchronization "n < nx", hysteresis and filtering" must be active (MD36901
$MA_SAFE_FUNCTION_ENABLE, bit 16 = 1).
MD36945 $MA_SAFE_VELO_X_FILTER_TIME
MD36946 $MA_SAFE_VELO_X
/FBSIsl/ see Chapter "Safe speed range detection "n<nx" (Page 148)"
$MA_SAFE_STOP_VELO_TOL
Speed tolerance for Safe Acceleration Monitor
Min. input limit: 0
min. Input limit: 0
Actual speed tolerance for safe monitoring of the acceleration (SBR).
After Safe Acceleration Monitor 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 specified.
Otherwise, a STOP A will be initiated. This means that if the drive accelerates, then this will
be identified as quickly as possible.
/FBSIsl/ see Chapter "Safe Acceleration Monitor (Page 134)"
(a recommended setting and setting formula are specified in this Chapter).
9.1 Machine data for SINUMERIK 840D sl
for the SGA "n < n
x
" is set.
x
" an I/O assignment must be made using MD36985 $MA_SAFE_VE‐
Protection level: 7/2
. As a maximum it can be different by the value of this MD,
x
Protection level: 7/2
Data descriptions
".
x
" is not active.
x
Max. input limit: 500
max. Input limit: 500
Unit: mm/min, inch/min,
rev/min
.
x
Max. input limit: 120000
max. Input limit: 200000
Unit: mm, inches, degrees
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