Siemens SINUMERIK 840D sl Function Manual page 284

Data Description
8.1 Machine data for SINUMERIK 840D sl
36933
MD number
Default value: 0.0
Change becomes effective after: RESET
Data type: DOUBLE
Significance:
Special cases, errors,...
corresponds with ...
Additional references
36934
MD number
Default value: 100 000
Change becomes effective after: POWER ON
Data type: DOUBLE
Significance:
Special cases, errors,...
corresponds with ...
Additional references
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SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 05.2008 Edition
$MA_SAFE_DES_VELO_LIMIT
SG setpoint speed limiting
Min. input limit: 0
Protection level: 7/2
This is an evaluation factor to define the setpoint limit from the actual speed limit. The ac-
tive SG limit value is evaluated using this factor and is entered into the interpolator as set-
point limit. When SBH is selected, a setpoint of 0 is entered.
When 100% is entered, the setpoint is limited to the active SG stage
When 0% is entered the setpoint speed limiting is not active.
– This MD may have to be altered several times before an optimum setting for the dy-
namic response of the drives is found. In order that this operation is not made unneces-
sarily complex, "reset" has been defined as the criterion for being effective.
– This data is not included in the crosswise data comparison with the drive.
– This data is not included in the axial checksum $MA_SAFE_ACT_CHECKSUM, as it is
a single–channel function.
Refer to Chapter : 11.1"Limiting the setpoint speed"
$MA_SAFE_POS_LIMIT_PLUS[n]: 0 ... 1
Upper limit value for safe limit position
Min. input limit: –2 147 000
Protection level: 7/2
This MD specifies the upper limit value for safe limit 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 MD $MD_SAFE_POS_LIMIT_PLUS[n] than in MD
$MA_SAFE_POS_LIMIT_MINUS[n], then a parameterizing error is displayed.
MD 36962: $MA_SAFE_POS_STOP_MODE
MD 36935: $MA_SAFE_POS_LIMIT_MINUS[n]
MD 36901: $MA_SAFE_FUNCTION_ENABLE
/FBSI/ see Chapter 6.7: "Safe software limit switches (SE)"
Max. input limit: 100
Unit: %
Max. input limit: 2 147 000
Unit: Degrees, mm
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05.08