SINAMICS G120 – The modular multifunctional frequency converter

You can always put together the perfect converter for your specific applications and industry sector thanks to the component’s modular design and the broad power range of 0.55 to 250kW.
Three voltage variations of this converter series are offered for connection to networks with voltages of 200 V, 400 V, and 690 V. The SINAMICS G120 also comes with a full machine safety package. The safety features are commissioned using SINAMICS Start-drive.
Multifunctional. Combinable. Safe.
The versatile frequency converter for all of your varied tasks is the SINAMICS G120.
Multifunctional
- Broad power range between 0.55kW and 250 kW
- Adaptable drive system for the widest range of industries and applications
- Available in high-voltage versions in addition to low- and medium-voltage versions
Combinable
- Options for component combinations are hosted by the operator panel, control unit, and power module
- Easy integration of control systems and electric motors into your current automation and system environment
- SINAMICS Startdrive, a single standard engineering for all drives, and totally Integrated Automation (TIA Portal)
Safe
- Safety Integrated with Machine Safety
- STO, SS1, SBC, SLS, SDI, and SSM are safety functions
- Smooth execution of safety features in compliance with PL d ( EN ISO 13849-1) and SIL 2 (EN 61508)
Power modules
Siemens offers a wide range of power modules for the most diverse driver requirements.
Power modules PM250

The best power module for regenerative feedback requirements. This implies that any braking energy is delivered back into the supply system directly (a brake chopper is not necessary for four-quadrant applications). The voltage and power ranges for the PM25O Power Module are as follows:
- 380 V – 480 V 3 AC ± 10% 7.5kW to 90 kW
Power Modules PM240-2

The perfect power module for mechanical engineering standard applications. PM240-2 Power Modules are appropriate for a wide range of general mechanical engineering applications and have brake chopper (Four-quadrant applications). The voltage and power ranges for the PM240-2 Power modules are as follows:
- 200 V … 240 V 1 AC/3 AC 0.55 kW … 4.0 kW
- 200 V … 240 V 3 AC 5.5 kW … 55 kW
- 380 V … 480 V 3 AC 0.55 kW … 250 kW
- 500 V … 690 V 3 AC 11 kW … 250 kW
Control units
The Control Unit uses a variety of control techniques to regulate the motor. The Control Unit is capable of doing other activates in addition to control operations, which can be parameterised to suit the specific application. For the SINAMICS G120, a variety of Control Units with Various functions are available.
CU230P-2 series Control Unit – the specialist for pumps, fans and compressors

Particularly well suited for drives with integrated technological functions for compressor, fan, and pump applications is the Control Unit (CU230P-2). These applications are optimally supported by the I/O interface, fieldbus interfaces, and other software features.
CU250S-2 series Control Unit – for high-performance applications in general mechanical engineering

The particular Control Unit (CU250S-2) is particularly well-suited for drives that require great torque precision and rapidity. These applications are optimally supported by the I/O interface, field bus interfaces, and other software features.
CU240E-2 series Control Unit – for standard applications in general mechanical engineering

Foe encoderless applications requiring safety, the conventional Control Unit (CU240E-2) with an increases I/O quantity structure is perfect.
CUA20 Control unit adapter kit – a simple and alternative way of installing the devices in cabinets

The SINAMICS Control Unit Adapter Kit CUA20 is offered to allow the power module and Control Unit to be separated both spatially and thermally in control cabinet installations. The CU230P-2, CU250S-2, and CU240E-2 Control Units are all compatible with the Adapter Kit CUA20.
Suitable Applications for SINAMICS G120
- Pumping / ventilating / compressing: This modular frequency converter is suitable for the following applications.
- Moving: SINAMICS is the driving force behind both basic and extremely dynamic stacker cranes and conveyor systems.
- Processing: SINAMICS is the engine that powers continuous operations with precise torque and rapid speed.
- Positioning: The drive for placing one or more coordinated axes is known as SINAMICS.
Wireless low voltage frequency converter commissioning, diagnosis, and maintenance
You can wirelessly connect your mobile devices (Laptop, tablet, smartphone) to the SINAMICS G120, G120C, G120X, and G115D converter series using the SINAMICS G120 Smart Access Module. This gives you a strong tool with many features for diagnostics, service, and wireless commissioning
Solutions for low-voltage converter digitisation
More efficiency and dependability in planning, operation, and maintenance are made possible by digitalisation, whether it be through virtualisation and simulation, dimensioning and configuration, networking, data analysis, or services.
Utilise digitalisation to maximise the value of your converter data
Digital twins of converters, engineering and selection tools, networking solutions, analysis apps, and data-based services are all included in the drive technology digitalisation package. These solutions guarantee increased efficiency, allow for demand-oriented maintenance planning, and optimise development processes.
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