Siemens SINUMERIK 840D sl Function Manual page 479

An override factor of between 1 and 100% can be assigned to the selected override using the
following machine data:
For 840D sl:
MD36932 $MA_SAFE_VELO_OVR_FACTOR[n]
For SINAMICS S120:
p9532[n]: SI Motion, override factor
SGE test stop selection
This signal is used to initiate the switch-off signal path test for the drive monitoring channel
(see Chapter "Switch-off signal paths (Page 103)").
①
②
③
Figure 9-1
The test stop is also carried out at the same time in the NCK monitoring channel (see Chapter
"Testing the switch-off signal paths (Page 105)").
Test stop for external STOPs
See Chapter "Forced checking procedure of the external STOPs (Page 131)".
SGE deselect ext. STOP A
"Pulse cancellation" can be requested and executed using this SGE.
The safe functions currently active (SG/SBH/SN/SE) are not influenced by this SGE.
If one of the currently active limits is violated, an appropriate alarm is initiated. The associated
shutdown response cannot be activated because the pulses have already been cancelled. As
soon as the stop request is cancelled via the SGE "deselect ext. STOP A" any queued
shutdown responses become active.
If a stop request is active, SGA "STOP A/B is active" is set in the same way as it would be for
an internally triggered STOP A.
Safety Integrated
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Pulse cancellation is started by setting the signal (1 PLC cycle).
After the test stop has been started, a timer runs. When the time in the timer has expired, the
test stop execution is checked using the SGA "status, pulses cancelled".
The system resets the signals.
Signal timing for SGE test stop selection
Data descriptions
9.6 Interface signals
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