SIEMENS
SINAMICS G180
Configuring instructions
Functions
5/4
Siemens D 18.1 · 2014
5
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Overview
(continued)
Safety functions integrated in the drive with SINAMICS G180
The safety functions integrated in the SINAMICS
G180 converter
with option
G04
,
G05
or
G08
satisfy the requirements of:
•
Category 3 according to EN ISO 13849-1
•
Performance Level (PL) d according to EN ISO 13849-1
•
Safety Integrity Level (SIL) 2 according to EN 61508
With additional option
S01
,
S02
or
S32
, the SINAMICS G180
also complies with the following:
•
Safety Integrity Level (SIL) 3 according to EN 61508
In addition, the Safety Integrated functions of SINAMICS G180
are generally certified by independent institutes. An up-to-date
list of currently certified components is available on request from
your local Siemens office.
Detailed description of the Safety Integrated function
Safe Torque Off (STO) is a function that prevents the drive from
restarting unexpectedly in accordance with EN 60204-1 Section
5.4. Safe Torque Off disables the drive pulses and disconnects
the power supply to the motor (corresponds to Stop Category 0
of EN 60204-1). The drive is reliably torque-free. This state is
also monitored internally in the drive.
STO has the immediate effect that the drive cannot provide any
torque-generating energy. STO can be used wherever the drive
will reach a standstill by itself due to the load torque or friction in
a sufficiently short time or when "coasting down" of the drive will
not have any relevance for safety.
Safe Torque Off
G_D211_XX_00210
t
v
STO
© Siemens AG 2014