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Siemens D 21.4 · 2017
Safety Integrated
Safety Integrated
3
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Function
The safety functions integrated in SINAMICS drives are described below.
Safety functions integral to the SINAMICS drives
SINAMICS drives are characterized by a large number of inte-
grated safety functions. In combination with the sensors and
safety control required for the safety functionality, they ensure
that highly-effective protection for persons and machines is
implemented in a practice-oriented manner.
They comply with the requirements of the following safety
categories:
•
PL d and Category 3 according to EN ISO 13849-1
•
SIL 2 according to IEC 61508 and IEC 61800-5-2
Note:
The Safe Brake Test (SBT) diagnostic function meets the
requirements for Category 2 according to EN ISO 13849-1.
The Safety Integrated functions are generally certified by
independent institutes. You can obtain the corresponding test
certificates and manufacturer's declarations from your Siemens
contacts.
The integrated safety functions that are currently available are
described below. Their functional safety satisfies the require-
ments defined in the international standard IEC 61800-5-2 for
variable-speed drive systems.
The safety functions integrated into the SINAMICS drive system
can be roughly divided into four categories:
•
Functions for safely stopping a drive
- Safe Torque Off (STO)
- Safe Stop 1 (SS1)
- Safe Stop 2 (SS2)
- Safe Operating Stop (SOS)
•
Functions for safe brake management
- Safe Brake Control (SBC)
- Safe Brake Test (SBT) (this diagnostic function exceeds
the scope of IEC 61800-5-2)
•
Functions for safely monitoring the motion of a drive
- Safely-Limited Speed (SLS)
- Safe Speed Monitor (SSM)
- Safe Direction (SDI)
•
Functions for safely monitoring the position of a drive
- Safely-Limited Position (SLP)
- Safe Position (SP) (this function exceeds the scope
of IEC 61800-5-2)
SINAMICS V
SINAMICS G
SINAMICS S
V20
V90
G110
G110D
G120C
G120P/
G120
G120
G110M
G120D
S110
S120
CU230P-2
CU240B-2
CU240E-2
CU250S-2
CU240M
CU240D-2
CU250D-2
CU305
CU310-2
CU320-2
Functions
STO
–
–
–
–
SS1
–
–
–
–
–
–
–
1)
–
1)
SS2
–
–
–
–
–
–
–
–
–
–
–
–
2)
2)
2)
SOS
–
–
–
–
–
–
–
–
–
–
–
–
2)
2)
2)
SBC
–
–
–
–
–
–
–
–
–
–
–
SBT
–
–
–
–
–
–
–
–
–
–
–
–
–
2)
2)
SLS
–
–
–
–
–
–
–
1)
2)
–
1)
1)
2)
2)
2)
SSM
–
–
–
–
–
–
–
1)
2)
–
1)
1)
2)
2)
2)
SDI
–
–
–
–
–
–
–
1)
2)
–
1)
1)
2)
2)
2)
SLP
–
–
–
–
–
–
–
–
–
–
–
–
–
2)
2)
SP
–
–
–
–
–
–
–
–
–
–
–
–
–
2)
2)
Control
PROFIsafe
–
–
–
–
–
–
F-DI
–
–
–
–
–
1)
With fail-safe Control Unit.
2)
With Safety Extended license.
© Siemens AG 2017