Siemens SINUMERIK 840D sl Function Manual page 118

Safety Functions Integrated in the System/Drive
6.3 Safe stops A-F
Note
S For stopping types that are not used, the assignment must be inverted by
appropriately parameterizing MD 36977[n]. This means that they are set to a
"1" signal and are permanently "inactive".
Exception:
S STOP E is interlocked by its own enable signal.
An external Stop E can also be initiated as an error response to a crosswise data
comparison of NCK and PLC-SPL or for PROFIsafe errors, instead of a STOP D.
Parameterization on the NCK side is carried-out using MD10097:
$MN_SAFE_SPL_STOP_MODE = 4, on the PLC side using DB 18.DBX36.1=1.
This parameterization is checked in the crosswise data comparison between PLC-
SPL and NCK-SPL (see Section 7.3 "Safe programmable logic").
If the value 4 is parameterized in MD 10097, without enabling the external Stop E
in all axes with SI function enable, then Alarm 27033 is output for all of these axes.
SGEs to stop the drive
The following SGEs are available to stop the drive:
Table 6-7
De-select ext STOP A (= SH
de-selection)
De-select ext. STOP C
De-select ext. STOP D
De-select ext. STOP E
Notes:
SGE " ... " = 1
SGE " ... " = 0
If a stop request is selected simultaneously using several SGEs, then that with the highest
priority is executed.
If one of the SGEs changes, the "tolerance time for SGE changeover" is activated (MD
36950/p9550).
Feedback signals:
for SGE "de-select ext. STOP A": via SGA "status pulses cancelled" and SGA "STOP A/B
active"
for SGE "de-select ext. STOP C": via SGA "STOP C active"
for SGE "de-select ext. STOP D": via SGA "STOP D active"
for SGE "de-select ext. STOP E": via SGA "STOP E active"
6-118
SINUMERIK 840D sl/SINAMICS S120 SINUMERIK Safety Integrated (FBSI sl) – 03.2006 Edition
SGEs to stop the drive
SGE
Pulse cancellation
Braking with n
Braking along a path
ESR is initiated
Stopping is not initiated (it is de-selected)
Stopping is initiated (it is selected)
Stopping type
high
= 0 ...
set
...
low
© Siemens AG, 2006. All rights reserved
03.06
Priority