Siemens SINUMERIK 840D sl Function Manual page 369

36951
Meaning:
Special cases, errors,...
corresponds with ...
36952
MD number
Default value: 0.1
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
36953
MD number
Default value: 0.1
Change becomes effective after: POWER ON
Data type: DOUBLE
Meaning:
corresponds with ...
36954
MD number
Default value: 0.1
Change becomes effective after: POWER ON
Data type: DOUBLE
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
$MA_SAFE_VELO_SWITCH_DELAY
A timer with this value is started when changing from a higher to a lower safely reduced speed
- or when a Safe Operating Stop is selected when the safely reduced speed function is active.
While the timer is running, the speed continues to be monitored against the last selected speed
limit value. During this period, the axis/spindle can be braked, for example, from the PLC user
program, without the monitoring function signaling an error and initiating a stop response.
1. The timer is immediately interrupted as soon as a higher or identical SG limit (i.e. to that
which was previously active) is selected.
2. The timer is immediately interrupted if "non-safe operation" (SGE "deselect SBH/SG=1")
is selected.
3. The timer is re-triggered (restarted) if, while the timer is running, a changeover is made to
a lower SG limit than was previously active or to SBH.
$MA_SAFE_STOP_SWITCH_TIME_C
Transition time, STOP C to safe standstill
Min. input limit: 0.0
This machine data defines the time period between the initiation of a STOP C and the activation
of a Safe Operating Stop.
The parameterized value must be selected as low as possible.
After the time has expired, the drive is monitored for a Safe Operating Stop. If the axis/spindle
was still not able to be stopped, then STOP B is initiated.
$MA_SAFE_STOP_SWITCH_TIME_D
Transition time, STOP D to safe standstill
Min. input limit: 0.0
This machine data defines the time period between the initiation of a STOP D and the activation
of a Safe Operating Stop.
The parameterized value must be selected as low as possible.
After the time has expired, the drive is monitored for a Safe Operating Stop. If the axis/spindle
was still not able to be stopped, then STOP B is initiated.
$MA_SAFE_STOP_SWITCH_TIME_E
Transition time, STOP E to safe standstill
Min. input limit: 0.0
9.1 Machine data for SINUMERIK 840D sl
Protection level: 7/2
Protection level: 7/2
Protection level: 7/2
Data descriptions
Max. input limit: 600.
Unit: s
Max. input limit: 600.
Unit: s
Max. input limit: 600.
Unit: s
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