SIEMENS
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Siemens D 31 · 2015
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Overview
SINAMICS G120D distributed inverters
0.75 kW to 7.5 kW (1 hp to 10 hp)
SINAMICS G120D distributed inverters
Safety Integrated
The SINAMICS G120D distributed inverters include versions for
safety-oriented applications. All Power Modules are already
designed for Safety Integrated. In conjunction with a fail-safe
Control Unit, the drive can be turned into a Safety Integrated
Drive.
The safety function "Safe Torque Off" (STO) (certified according
to IEC 61508 SIL 2, EN ISO 13849-1 PL d and Category 3) is
already integrated into the standard versions of the CU240D-2
series (CU240D-2 DP and CU240D-2 PN). It can be activated
either over PROFIsafe or over the safety input.
With the fail-safe variants of the CU240D-2 series
(CU240D-2 DP-F xx and CU240D-2 PN-F xx) and with the entire
CU250D-2 series, the fail-safe SINAMICS G120D inverter
provides five safety functions which are certified according to
IEC 61508 SIL 2, EN ISO 13849-1 PL d and Category 3:
•
Safe Torque Off (STO)
to protect against active movement of the drive
•
Safe Stop 1 (SS1)
for continuous monitoring of a safe braking ramp
•
Safely Limited Speed (SLS)
for protection against dangerous movements on exceeding a
speed limit
•
Safe direction (SDI)
This function ensures that the drive can only rotate in the
selected direction.
•
Safe speed monitoring (SSM)
This function signals if a drive is operating below a specific
speed/feed velocity.
These functions can be activated by means of PROFIsafe or via
the safety inputs. A safety output is provided in addition.
All safety functions can be implemented without having to use a
motor encoder; the implementation costs are minimal. Existing
systems in particular can be simply updated with safety technol-
ogy without the need to change the motor or mechanical system.
The Safe Torque Off (STO) function can be used without restric-
tion for all applications. The SS1, SLS, SSM and SDI functions
are only permissible for applications where the load can never
accelerate when the inverter is switched off. They are therefore
not permitted for applications involving pull-through loads such
as hoisting gear and unwinders.
Additional information is provided in chapter Highlights, section
Safety Integrated.
Efficient Infeed Technology
The innovative Efficient Infeed Technology is employed in
PM250D Power Modules. This technology allows the energy pro-
duced by motors operating in generator mode connected to
standard inverters to be fed back into the supply system. At the
same time, considerable savings can be achieved in terms of
energy consumption and operating costs.
Additional information is provided in chapter Highlights,
section Efficient Infeed Technology.
STARTER commissioning tool
The STARTER commissioning tool (V4.3 and higher) supports
the commissioning and maintenance of SINAMICS G120D in-
verters. The operator guidance combined with comprehensive,
user-friendly functions for the relevant drive solution allow you to
commission the device quickly and easily.
© Siemens AG 2014