Siemens SINUMERIK 840D sl Function Manual page 116

Safety functions integrated in the system/drive
7.3 Safe Stops A-F
The drives can be brought to a standstill in the following ways:
● through pulse cancellation
● Braking with n
● Braking along a path
● Brake with ESR motion
Enabling and activating the function
The function "external STOPs" is enabled and activated using the following machine data:
● Enabling the function
MD36901 / parameter p9501 $MA_SAFE_FUNCTION_ENABLE / "SI Motion enable safety
functions"
Bit 0: Enable SBH/SG (see note)
Bit 6: Enable external STOPs
Bit 4: Enable external STOP E
Note
In addition to enabling the function "external STOPs", function SBH/SG must also be enabled
as a minimum requirement.
The external STOP E must be enabled with bit 4 = 1 in addition to bit 6 "enable external STOPs".
Configuring NCK-SGE
For 840D sl:
MD36977 $MA_SAFE_EXT_STOP_INPUT[n]:
(input assignment, external stop request) with n = 0, 1, 2, 3.
Note
● For stopping types that are not used, the assignment must be inverted by appropriately
parameterizing MD36977[n]. This means that they are set to a "1" signal and are
permanently "inactive".
Exception:
● 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. On the NCK side,
parameterization is realized using MD10097 $MN_SAFE_SPL_STOP_MODE = 4 - and on the
PLC side, using DB18.DBX36.1=1.
This parameterization is checked in the crosswise data comparison between PLC-SPL and
NCK-SPL (see Chapter "Safe programmable logic (Page 256)").
If the value 4 is parameterized in MD10097, without enabling the external STOP E in all axes
with SI function enable, then Alarm 27033 is output for all of these axes.
116
= 0 / OFF3 ramp
set
SGE "Deselect ext. STOP A"
SGE "Deselect ext. STOP C"
SGE "Deselect ext. STOP D"
SGE "Deselect ext. STOP E"
Function Manual, 12/2017, 6FC5397-4BP40-6BA1
Safety Integrated