Siemens SINAMICS G120D Distributed Frequency Converter

Made for Horizontal or Vertical Motion and Positioning

The Siemens SINAMICS G120D distributed frequency converter is a specialist for demanding horizontal and vertical control applications, from conveyor systems to electric monorails. Thanks to its positioning capability, extended safety functions, and fail-safe digital inputs and outputs, it masters any challenge. And it does it efficiently and sustainably with energy recovery and support of PROFIenergy.

SINAMICS G120D: A great element in a drive system

With SINAMICS G120D frequency converters, the user can flexibly create their own drive system by combining the converter with the most appropriate motor or geared motor for their application.

System Integration Made Easy

SINAMICS G120D frequency converters are compatible with SIMOTICS GP/SD standard induction motors and synchronous reluctance motors in aluminum/cast iron and with the geared motors in the SIMOGEAR family. As part of the SINAMICS family of integrated drives, they can be configured, parameterized, commissioned, and operated in a standard fashion. They're also fully implemented in the Totally Integrated Automation (TIA) environment, which seamlessly integrates hardware, software, and services. That ensures that not only all of the individual components are coordinated with one another; it also allows a fast and easy parametrization and commissioning via TIA Portal.

The Optimal Single-motor Drive for High-performance Solutions

SINAMICS G120D sets new standards in distributed architectures. The distributed converter distinguishes itself thanks to its extremely low-profile design, high degree of protection (IP65), and safety functions that make it absolutely unique in its class. Braking resistors aren't required because it's capable of energy recovery when in the generating mode. As a result, it plays a decisive role in saving energy. The communication-capable converter has a modular design and covers a wide power range from 0.75 kW to 7.5 kW.

Modular Design for Different Requirements

With its intelligent modular design with IP65 degree of protection, SINAMICS G120D can be seamlessly integrated into the plant or system and supports high plant availability and low stocks of spare parts. The distributed frequency converter consists primarily of a control unit (CU) and power module (PM) and comprises a variety of function units. The CU controls and monitors the PM and the connected motor using several different closed-loop control types that can be selected. The low-profile mechanical design is optimized so that the device can be used immediately in the plant or system.

Saving Energy in an Intelligent Way

SINAMICS G120D plays a decisive role in saving energy. Thanks to its regenerative feedback capability, no braking resistors are necessary: The braking energy is supplied back into the line. Lower harmonics and an improved power factor reduce power infeed by up to 22%. The eco mode automatically adjusts and optimizes the operating point of the motor and reduces motor losses. And in addition to an optional energy consumption and energy saving counter, the SINAMICS G120D provides energy-related status data via PROFINET and PROFIenergy for energy management. This enables energy savings by means of selective shutdowns of plants or plant sections.

Intuitive Installation and Operation

With plug connectors for all cable connections and just four screws, SINAMICS G120D can be easily mounted on the machine. The same drilling dimensions for all power modules significantly simplify the system's mechanical design, installation, and retrofit. Connection macros allow fast modification of the drive for the specific application. And in the event of a fault, the SD memory card makes it possible to replace the drive without a PC or new configuration. Engineering and commissioning with standardized engineering tools also ensure fast project planning and simple commissioning.

Maximum Safety Already on Board

SINAMICS G120D offers integrated safety functions that make it absolutely unique in its class. From Safe Torque Off (STO), Safe Stop (SS1), Safe Brake Control (SBC), Safe Direction (SDI), and Safely Limited Speed (SLS) to Safe Brake Control (SBC) - Safety Integrated simplifies the implementation of safety concepts without requiring additional external components like an encoder. It also allows faster system approvals and saves costs. Existing systems can be easily updated with safety technology with no need to change the motor or mechanical system. The safety functions can either be controlled via onboard terminals or via PROFINET/PROFIBUS with PROFIsafe.

Multifunctional, Rugged, Distributed

Multifunctional

• The SINAMICS G120D provides a variety of functions including position control, free function blocks, and write and knowledge protection.

• Its energy-efficient technology covers the support of PROFIenergy and energy recovery by measuring consumed energy to reduced motor power losses thanks to speed control.

• Integrated safety functionality (Safety Integrated) enables certified safety functions with no external components, ensures fewer faults, and reduces wiring expenditures.

Rugged

• With IP65 degree of protection, SINAMICS G120D is ready to provide the best-in-class operational results under tough ambient conditions. And thanks to its compact design, it can be used in applications where space is at a premium.

• Reliable operation across a wide temperature range from -10° to +55° Celsius.

Distributed

• SINAMICS G120D frequency converters belong to a family of distributed converters.

• The distributed approach allows motors to be controlled close to the actual application, reduces the number of motor cables required, improves electromagnetic compatibility, and reduces thermal losses.

Power-Flo Technologies is proud to partner with Siemens and their SINAMICS G120D that is more than just a distributed frequency converter, it’s a complete solution for modern, efficient, and safe drive applications. With its modular design, energy-saving capabilities, and integrated safety functions, it offers unmatched flexibility and reliability in even the most demanding environments. Seamlessly integrated into the TIA environment and engineered for intuitive installation and operation, the G120D empowers users to optimize performance, reduce costs, and simplify system integration. Whether in conveyor systems, electric monorails, or other high-performance applications, the SINAMICS G120D sets new benchmarks for energy efficiency, safety, and versatility. It’s the intelligent choice for anyone looking to build sustainable, future-ready drive systems.