The SINAMICS G120D distributed converters are the solution for demanding drive tasks especially in the field of conveyor systems. SINAMICS G120D converters continuously control the speed of three-phase asynchronous (induction) motors and fulfill all the requirements of conveyor system applications from simple frequency control through to demanding vector control and positioning requirements. With its intelligent modular design with IP65 degree of protection, it can be seamlessly integrated into the plant or system and supports a high plant availability and low stocks of spare parts. The innovative power unit concept capable of energy recovery helps save energy. The patented implementation concept of the integrated safety functions is unique worldwide and has been extended further, without the use of external components. This drive can be optimally integrated into the Siemens TIA world of automation via PROFIBUS or PROFINET / EtherNet/IP.
With different device versions (frame sizes FSA to FSC) in a power range from 0.75 kW to 7.5 kW, it is suitable for a wide variety of drive solutions.
Example: SINAMICS G120D, frame size FSA, comprising PM250D Power Module and fail-safe CU250D-2 PN‑F Control Unit
Siemens offers an innovative portfolio of frequency converters to optimally implement distributed drive solutions. The strengths of the individual members of the drive family permit simple adaptation to the widest range of application demands:
Products from the family of distributed drives:
SINAMICS G120D is a modular converter system with IP65 degree of protection comprising various function units. The main units are
The Control Unit controls and monitors the Power Module and the connected motor using several different closed-loop control types that can be selected. The digital inputs, analog inputs and digital outputs on the device support the simple wiring of sensors and actuators directly at the drive. The input signals can either be directly linked within the Control Unit and initiate local responses independently or they can be transferred to the central control via PROFIBUS or PROFINET / EtherNet/IP for further processing within the context of the overall plant.
The Power Module supplies the motor in a power range from 0.75 kW to 7.5 kW. The Power Module is controlled by a microprocessor in the Control Unit. State-of-the-art IGBT technology with pulse-width-modulation is used for highly reliable and flexible motor operation. Comprehensive protection functions provide a high degree of protection for the Power Module and the motor. The unusually low profile mechanical design is optimized so that the device can be directly used in the plant or system. The Power Module also has the same drilling dimensions for all power ratings (standard footprint). Further, the dimensions are identical to those of SINAMICS G110D. This significantly simplifies the mechanical design, installation and retrofit of a system.
The latest technical documentation (catalogs, dimension drawings, certificates, manuals and operating instructions) is available on the Internet at the following address:
and offline in the DT Configurator integrated in Catalog CA 01. In addition, the DT Configurator can be used on the Internet without requiring any installation. The DT Configurator can be found in the Siemens Industry Mall at the following address:
The SINAMICS G120D distributed converters include versions for safety-oriented applications. All Power Modules are already designed for Safety Integrated.
The Safety Integrated 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 converter provides five safety functions which are certified according to IEC 61508 SIL 2, EN ISO 13849‑1 PL d and Category 3:
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 technology without the need to change the motor or mechanical system.
The Safe Torque Off (STO) function can be used without restriction for all applications. The SS1, SLS, SSM and SDI functions are only permissible for applications where the load can never accelerate when the converter is switched off. They are therefore not permitted for applications involving pull-through loads such as hoisting gear and unwinders.
Further information can be found in the Highlights section under Safety Integrated.
The innovative Efficient Infeed Technology is employed in PM250D Power Modules. This technology allows the energy produced by motors operating in generator mode connected to standard converters 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.
The STARTER commissioning tool (V4.3 and higher) supports the commissioning and maintenance of SINAMICS G120D converters. The operator guidance combined with comprehensive, user-friendly functions for the relevant drive solution allow you to commission the device quickly and easily.
The SINAMICS G120D distributed converters are modular converters for standard drives. Each SINAMICS G120D comprises two operative units – a Power Module and a Control Unit.
PM250D Power Module with line supply and motor connections and CU240D-2 Control Unit
The following PM250D Power Modules are available for the SINAMICS G120D distributed converters:
PM250D Power Modules
PM250D Power Modules (0.75 kW to 7.5 kW) have an innovative circuit design which allows line-commutated energy recovery back into the line supply. This innovative circuit permits generated energy to be fed back into the supply system and therefore saves energy.
A Control Unit performs closed-loop control functions for the converter. In addition to the closed-loop control, it has additional functions that can be adapted to the particular application through parameterization.
The following Control Units are available for SINAMICS G120D distributed converters:
CU240D‑2 Control Units
The CU240D‑2 Control Units can be used to implement applications with speed/torque control. Several Control Units are available in different versions:
CU250D‑2 Control Units
CU250D‑2 Control Units can be used to implement applications with positioning requirements in the drive. Several Control Units are available in different versions:
IOP-2 Handheld Intelligent Operator Panel
The IOP‑2 Handheld supports both newcomers and drive experts. Thanks to the large plain text display, the menu-based operation and the application wizards, it is easy to commission, diagnose and locally control standard drives.
The parameter settings for a converter can be stored on the SINAMICS SD memory card. When service is required, e.g. after the converter has been replaced and the data have been downloaded from the memory card, the drive system is immediately ready for use again. The associated slot is located on the rear of the Control Unit.
Mini USB interface cable for communication with a PC
For controlling and commissioning a converter directly from a PC if the appropriate software (STARTER commissioning tool V4.3 and higher or SINAMICS Startdrive) has been installed.
Connecting cables for the Control Units
Flexible plug-in cables to transfer data between the Industrial Ethernet stations or PROFIBUS stations, as well as to supply power to the Control Unit.
Connecting cables for the Power Modules
Connector sets to connect to the line supply and the outgoing motor feeder are available as accessories as well as pre-assembled motor cables for connection to the motor.
Spare parts kit
A spare parts kit is available which comprises small parts such as seals, caps, PROFIBUS address windows and screws.
A replacement fan is available, which comprises a pre-mounted unit with cover, fan and screws.
The following electronic configuring aids and engineering tools are available for the SINAMICS G120D distributed converters:
The interactive catalog CA 01 – the offline Industry Mall of Siemens – contains over 100000 products with approximately 5 million possible drive system product variants. The Drive Technology Configurator (DT Configurator) has been developed to facilitate selection of the correct motor and/or converter from the wide spectrum of drives. It is integrated as a selection tool in Catalog CA 01.
In addition, the DT Configurator can be used on the Internet without requiring any installation. The DT Configurator can be found in the Siemens Industry Mall at the following address:
The PC-based SIZER for Siemens Drives engineering tool makes it easy to configure the SINAMICS drive family. It provides support when selecting the hardware and firmware components necessary to implement a drive task. SIZER for Siemens Drives supports the complete configuration of the drive system, from basic single drives to demanding multi-axis applications.
You can find further information on the SIZER for Siemens Drives engineering tool in the section Engineering tools.
The SIZER for Siemens Drives engineering tool is available free on the Internet at
The STARTER commissioning tool allows menu-prompted commissioning, optimization and diagnostics. Apart from the SINAMICS drives, STARTER is also suitable for MICROMASTER 4 devices.
The new CU240D‑2 PN‑F FO and CU250D‑2 PN‑F FO Control Units can be commissioned with STARTER V4.4 and higher.
You can find further information on the STARTER commissioning tool in the section Engineering tools.
Additional information about the STARTER commissioning tool is available on the Internet at
SINAMICS Startdrive is a tool for configuring, commissioning, and diagnosing the SINAMICS family of drives and is integrated into the TIA Portal. SINAMICS Startdrive can be used to implement drive tasks with the SINAMICS G120, SINAMICS G120C, SINAMICS G110M, SINAMICS G120D and SINAMICS G120P converter series. The commissioning tool has been optimized with regard to user friendliness and consistent use of the TIA Portal benefits of a common working environment for PLC, HMI and drives.
You can find further information on the SINAMICS Startdrive commissioning tool in the section Engineering tools.
The SINAMICS Startdrive commissioning tool is available free on the Internet at
Drive ES is the engineering system that can be used to integrate the communication, configuration and data management functions of Siemens drive technology into the SIMATIC automation world easily, efficiently and cost-effectively. Two software packages are available for SINAMICS – Drive ES Basic Maintenance and Drive ES PCS.
You can find more information about the Drive ES engineering system in the section Engineering tools.
Additional information about the Drive ES engineering system is available on the Internet at
Unless explicitly specified otherwise, the following technical specifications are valid for all the following SINAMICS G120D distributed converter components listed here.
|Transport acc. to EN 60721‑3‑2 1)||Class 1M2|
|Operation acc. to EN 60721‑3‑3||Class 3M2|
|Transport acc. to EN 60721‑3‑2 1)||Class 1M2|
|Operation acc. to EN 60721‑3‑3||Class 3M2|
|Degree of protection||IP65/UL Type 3|
|Protection classAccording to EN 61800‑5‑1||Class III (PELV)|
|Touch protectionAccording to EN 61800‑5‑1||Class I (with protective conductor system)|
|Permissible ambient/coolant temperature (air)
|-10 … +40 °C (14 … 104 °F) without derating
>40 … 55 °C (104 … 131 °F), see derating characteristics
|Humidity, max.||95 % at 40 °C (104 °F)|
|Storage 1) acc. to EN 60068‑2‑1||-40 … +70 °C (-40 … +158 °F)|
|Transport 1) acc. to EN 60068‑2‑1||-40 … +70 °C (-40 … +158 °F)|
|Operation acc. to EN 60068‑2‑2||-10 … +40 °C (14 … 104 °F) without derating|
|Environmental class/harmful chemical substances|
|Operation acc. to EN 60721‑3‑3||Class 3C2|
|Degree of pollution acc. to EN 61800‑5‑1||2|
|Certification for fail-safe versions|
|According to IEC 61508||SIL 2|
|According to EN ISO 13849‑1||PL d and Category 3|
|Compliance with standards||UL 508C (UL list number E121068), cUL, CE, RCM|
|CE marking, according to||Low Voltage Directive 2014/35/EU|
|Frame sizes FSA to FSC with integrated line filter class A||Category C2 2) according to EN 61800‑3|
|Note:The EMC product standard EN 61800-3 does not apply directly to a frequency converter but to a PDS (Power Drive System), which comprises the complete circuitry, motor and cables in addition to the converter. The frequency converters on their own do not generally require identification according to the EMC Directive.|
1) In product packaging.
2) With shielded motor cable up to 15 m (49 ft).
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