Definitions And Effects In The Nc; Priorities - Siemens SINUMERIK MC Commissioning Manual

7.7.4

Definitions and effects in the NC

The motion control in the NC is linked to the Safety Integrated Functions in the drive via the SIC
status signals. This avoids that subsequent responses are initiated in the NC as a result of
safety stops in the drive.
Example: The motion control in the NC responds to the drive STOP responses by no longer
issuing additional setpoints for the path, for example. As a consequence, alarms to be
acknowledged are avoided, such as "Contour monitoring" or "Positioning monitoring".
The corresponding status bits from S_ZSW1 (or S_ZSW1B) are used to emulate the safety stop
responses in the NC.
7.7.5

Priorities

Table 7-6 Priorities of the stop responses
Priority classes
Highest priority
.....
...
..
..
Lowest priority
Priorities between stop responses and Extended Functions
The following table lists which stop response or safety function is set if a STOP is initiated when
a safety function is active.
Table 7-7 Priorities between stop responses and Extended Functions
Highest
priority
Stop response/
Extended Function
STOP A
Highest STO STOP A / STO STO
priority
..... SS1 STOP A
... SS2 STOP A
Safety Integrated (with SINAMICS S120)
Commissioning Manual, 02/2020, A5E46305916B AB
Stop response
STOP A
STOP B
STOP C
STOP D
STOP E
STOP F
... ...
STOP B STOP C
STO
STOP B / SS1 SS1
STOP B STOP C / SS2 SS2
... ...
STOP D STOP E
STO STO
SS1 SS1
SS2
Diagnostics
7.7 Stop responses
Lowest
priority
STOP F
STO
SS1
SS2 / STOP B
2)
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