Siemens SINUMERIK 840D sl Function Manual page 362

Data descriptions
9.1 Machine data for SINUMERIK 840D sl
36933
Meaning:
Special cases, errors,...
corresponds with ...
Additional reference
36934
MD number
Default value: 100000
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
Special cases, errors,...
corresponds with ...
Additional reference
36935
MD number
Default value: -100000:
Change becomes effective after: POWER ON
Data type: DOUBLE
362
$MA_SAFE_DES_VELO_LIMIT[0...3]
Evaluation factor to define the speed setpoint limit.
The selection of the active evaluation factor is realized using the axis specific NC/PLC interface
DB3x.DB34.0 and 1.
Parameterization:
This MD may have to be altered several times before an optimum setting for the dynamic
response of the drives is found.
Effect of SI monitoring with NCK involvement:
● When 0% is entered the setpoint speed limiting is not active.
● When 100% is entered, the setpoint is limited to the active SG stage
● The active actual speed limit value is evaluated using this factor and is entered into the
interpolator as setpoint limit.
● When SBH is selected, a setpoint of 0 is entered.
● This data is not included in the crosswise data comparison with the drive.
● This data is not included in the axis-specific checksum MD36998
$MA_SAFE_ACT_CHECKSUM[ ] as it involves a 1-channel function.
If, from the PLC user program, there is no input to select the evaluation factor, then MD value
from MD36933 $MA_SAFE_DES_VELO_LIMIT[0] becomes active.
/FBSIsl/ see Chapter "Limiting the speed setpoint (Page 751)"
$MA_SAFE_POS_LIMIT_PLUS[0...1]
Upper limit value for safe limit position
Min. input limit: -2147000
This MD specifies the upper limit value for safe end positions 1 and 2.
When SE1 or SE2 is selected and the actual position exceeds this limit, then the control system
outputs Alarm 27012 with the stop response configured in $MA_SAFE_POS_STOP_MODE
and changes over into the SBH mode. If SBH is violated, STOP B and A are initiated as stop
response.
n = 0, 1 stand for the upper limit value of SE1, SE2
If a lower or identical value is entered in MD36934 $MD_SAFE_POS_LIMIT_PLUS[n] than in
MD36935 $MA_SAFE_POS_LIMIT_MINUS[n], then a parameterizing error is displayed.
MD36962 $MA_SAFE_POS_STOP_MODE
MD36935 $MA_SAFE_POS_LIMIT_MINUS[n]
MD36901 $MA_SAFE_FUNCTION_ENABLE
/FBSIsl/ see Chapter "Safe software limit switches (SE) (Page 154)"
$MA_SAFE_POS_LIMIT_MINUS[0...1]
Lower limit value for safe limit position
Min. input limit: -2147000
Protection level: 7/2
Protection level: 7/2
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Max. input limit: 2147000
Unit: mm, inches, degrees
Max. input limit: 2147000
Unit: mm, inches, degrees
Safety Integrated