Siemens SINUMERIK 840D sl Function Manual page 153

The smoothed, safe actual value of the NCK is also available in the servo trace.
Note
By parameterizing a filter time not equal to 0, the reaction time of the SGA "n<n
according to the behavior of a PT1 filter.
The maximum time delay of the SGA "n<n
to the filter time parameterized in MD36945.
Example:
Filter time = 20 ms ⇒ the parameterized n
Accordingly, SGA n<n
The maximum time delay of the SGA "n<n
corresponds to 3 times the filter time parameterized in MD36945.
Example:
Filter time = 20 ms ⇒ the parameterized n
Accordingly, SGA "n<n
Synchronization
The synchronization of the SGA "n<n
between the NCK and drive due to possible telegram failures (see Chapter "Safe software
cams (4 cam pairs) (Page 159)"), but instead, between the NCK and PLC by AND'ing the SGA
"n<n
In order to ensure that a monitoring channel does not continuously return a 0 - and hence the
SGA "n<n
comparison between the NCK and drive and checked for plausibility.
For the display of the SGA "n<n
The value displayed in the SGA word contains the information from the relevant monitoring
channel including the hysteresis that is applied, but without synchronization.
If the actual value synchronization function in $MA_SAFE_FUNCTION_ENABLE, bit 3 is
enabled, then the velocity tolerance slip with velocity tolerance "n<n
plausibility. If the velocity tolerance "n<n
"Axis %1 parameterization of MD $MA_SAFE_VELO_X_HYSTERESIS invalid, error code %4"
is issued.
"n<n
A STOP F (displayed using Alarms 27001, 27101 and onwards or F01711) only results in a
subsequent STOP B/A response, if at least one of the safety-related functions SBH, SG, SE,
SN or synchronization, hysteresis and filtering "n<n
function "n<n
This means that if "n<n
or SN functions must be active or selected (e.g. by selecting a high SG level).
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
is also set with a delay.
x
" is also set with a delay.
x
".
x
" would permanently remain at 0 - SGA "n<n
x
WARNING
" as safety function
x
" is active, then a STOP F does not result in a subsequent STOP B/A response.
x
" is used as a safety function, then at least one of the SBH, SG, SE
x
Safety functions integrated in the system/drive
7.6 Safe speed range detection "n<nx"
" for a linear velocity increase/decrease corresponds
x
limit is reached with a max. delay of 20 ms.
x
" for a sudden speed increase/decrease
x
limit is reached with a max. delay of 60 ms.
x
", just like cam synchronization, is not performed
x
" in the service screen and servo trace, the following applies:
x
" is less than the slip tolerance, then Alarm 27033
x
" is active or has been selected. If only
x
" is subject to a crosswise data
x
" must be checked for
x
" increases
x
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