Siemens SINUMERIK 840D Description Of Functions page 245

11.03
(tolerance for safe operating stop exceeded, STOP a/B) and the drive is
switched into the safe standstill condition.
1331 $MD_SAFE_VELO_LIMIT[n]
Limit values for safely-reduced speed
Unit: mm/min or Default:
rev/min 2 000
Limit values for the safely reduced speed monitoring.
n = 0, 1, 2, 3, stands for limit value of SG1, 2, 3, 4
If the actual speed is greater than this limit value, then the drive initiates a stop
response (this can be parameterized in MD 1361:
$MD_SAFE_VELO_STOP_MODE) and switches into the safe operating stop.
With active SBH/SG and a 1-encoder system, the speed is monitored on the
basis of an encoder limit frequency of 200kHz (300 kHz, 840D from SW 3.6).
The parameterized stop response is output when the limit is exceeded.
1332 $MD_SAFE_VELO_OVR_FACTOR[n]
Correction factor for SG
Unit: Default:
% 100
It is possible to select overrides via SGEs for safely-reduced speeds 2 and 4
and to set the associated override value (percentage) in this machine data.
n = 0, 1, ... , 15 stand for overrides 0, 1, ... 15
The "override for safely-reduced speed" function is enabled via MD 36901
(MD 1301): $MA($MD)_SAFE_FUNCTION_ENABLE (refer to Chapter 3.4.5
"Override for safely-reduced speed").
1334 $MD_SAFE_POS_LIMIT_PLUS[n]
Upper limit value for safe end position
Unit: µm or Default:
100 000 000
mdegrees
Upper (positive) limit value for safe monitoring of a limit position
n = 0, 1 stands for safe limit position SE1, SE2
When passing the active, upper limit value, the drive initiates an alarm (this can
be parameterized using MD 1362: $MD_SAFE_POS_STOP_MODE) and
switches into the safe operating stop.
1335 $MD_SAFE_POS_LIMIT_MINUS[n]
Lower limit value for safe end position
Unit: µm or Default:
-100 000 000
mdegrees
Lower (negative) limit value for SE.
n = 0, 1 stands for safe end position SE1, SE2
© Siemens AG 2003 All Rights Reserved
SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
4.2 Machine data for SIMODRIVE 611 digital
Minimum value Maximum value:
0 1 000 000
Minimum value: Maximum value:
1 100
Minimum value: Maximum value:
-2 147 000 000 2 147 000 000
Minimum value: Maximum value:
-2 147 000 000 2 147 000 000
4 Data Descriptions
611 digital
Relevant for:
FD/MSD
Data type: Becomes
float effective:
POWER ON
611digital
Relevant for: Valid from:
FD/MSD SW version 4.2
Data type: Becomes
short integer effective:
POWER ON
611 digital
Relevant for:
FD/MSD
Data type: Becomes
long integer effective:
POWER ON
611digital
Relevant for:
FD/MSD
Data type: Becomes
long integer effective:
POWER ON
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