Siemens SINUMERIK 840D sl Function Manual page 114

Safety functions integrated in the system/drive
7.3 Safe Stops A-F
STOP Action
F Distinction between
cases:
a) Safety function in‐
active (no SBH, SG,
SE and SN active):
latched (stored) sig‐
nal to the operator
b) Safety function ac‐
tive (SBH, SG. SE or
SN active)
STOP B/A is initiated
(can be configured)
c) Safety function ac‐
tive and STOP C, D
or E initiated:
latched (stored) sig‐
nal to the operator
Note:
The timers can be set using the appropriate machine data.
Configurable stop responses
The stop responses that occur when limit values are violated can be selected by the machine
manufacturer using the appropriate machine data. These limit values are defined using the
corresponding machine data:
Table 7-3
Safety-related function Configurable stop responses
SBH
SG
SE
SN
SBR
CDC: STOP F cannot be configured
Note:
* There is an immediate transition from STOP B to A if t
exceeded.
114
Effect
a) NC start and traverse in‐
terlocking
b) Transition to STOP B/A
c) NC start and traverse in‐
terlocking
Configurable stop responses
STOP B* (cannot be configured)
STOP A, B*, C, D, E
STOP C, D, E
No internal stop response.
When required, the user can configure the appropriate safe stop responses
using the SGAs SN1, SN2, ... .
STOP A (cannot be configured)
Initiated in re‐ Transitioned into
sponse to
a) --
Crosswise data
comparison
b) SH
c) --
= 0 or the parameterized speed threshold is
B
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Acknowledgment
a) RESET
b) POWER ON
c) RESET
Safety Integrated