Effects When An Se Responds - Siemens SINUMERIK 840D Description Of Functions

3 Safety-Related Functions
3.6 Safe software limit switches (SE)
3.6.1

Effects when an SE responds

!
Configurable stop When an axis passes a "safe software limit switch", a stop response configured
in the following machine data is generated:
responses
For 840D
For 611 digital
The user can select either STOP C, D or STOP E.
•
Effect
•
•
Acknowledging and
moving away
•
Timing when "safe If the "safe software limit switch" function is active, the system timing is as
software limit switch" follows when the limit position is passed:
is actuated
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SINUMERIK 840D/SIMODRIVE 611 digital SINUMERIK Safety Integrated (FBSI) - Edition 11.03
Warning
The SE function does not predictively monitor the SW limit switches, i.e. the
axis stops after passing the limit position. The distance traveled after the SE
is dependent on
how the function is parameterized (monitoring clock cycle, stop response...),
the current traversing speed and
the design of the axis.
MD 36962:
MD 1362:
The configured stop response is initiated.
The relevant alarm is displayed.
Traverse the axis to a position in which the monitoring does not respond
(refer to Description of Alarm "safe software limit switch passed" in
Chapter 6, "Alarms"). The "user agreement" must be canceled (SE is then
de-activated)
or
change over to the other "safe software limit switches".
Acknowledge the error message according to the configured stop response
(refer to Chapter 2, "Safe response via shutdown paths and STOPs")
$MA_SAFE_POS_STOP_MODE
$MD_SAFE_POS_STOP_MODE
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11.03