Siemens Sinumerik 840D sl Function Manual page 128

Safety functions integrated in the system/drive
6.3 Safe Stops A- -F
Note
S For external STOPs, alarms are not displayed. This means that the user
himself must configure the required message/signal.
Combinations for external STOPs
The following input bit combinations are obtained for the SGEs "deselect ext.
STOP A", "deselect ext. STOP C", "deselect ext. STOP D" and "deselect ext.
STOP E":
Table 6-8
Deselect
external
STOP E
x
x
x
0
1
Acknowledging a stop request
After requesting a specific stop type via SGE, this sequence can be cancelled by
one of the following events:
S Deselecting the stop request
S Selecting a stop request using an SGE with a higher priority
S A higher stop request (STOP A; B; C or D) with a higher priority is received
from an internal monitoring function
Effects of the stop responses on other axes/spindles
If a stop response is initiated, then this has the following effects on all of the other
axes in the same channel:
STOP E: Extended stopping and retraction is initiated
STOP D: Braking along a path
STOP C: NCK: IPO fast stop (braking at the current limit/OFF3 ramp)
STOP A: IPO fast stop (braking at the current limit)
6-128
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) - - 10.2015 Edition
Input bit combinations
Deselect Deselect
external external
STOP D STOP C
x x
x 0
0 1
1 1
1 1
SGE
Deselect Description
external
STOP A
0 "Pulse cancellation" is initiated
1 "Braking is initiated with n
1 "Braking along a path" is initiated
1 "ESR" is initiated
1 External STOPs are not selected
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