Siemens SINAMICS G120
The Siemens SINAMICS G120 is a modular VFD system consisting of a Control Unit (CU) and a Power Module (PM), covering a power range from 0.37 kW to 250 kW. Its modular architecture allows independent selection of control intelligence and power stage, simplifying spare parts inventory and enabling field upgrades. The G120 supports V/f, vector, and servo control modes for asynchronous and synchronous motors, including permanent magnet motors for maximum energy efficiency. Integrated Safety Integrated functions (STO, SS1, SLS, SSM certified to SIL 3) eliminate the need for external safety relays. The drive integrates seamlessly into Siemens TIA Portal for unified engineering alongside S7-1500 PLCs and SIMATIC HMIs.
Specifications
| Parameter | Value |
|---|---|
| Power Range | 0.37–250 kW |
| Input Voltage | 200–240 V 1AC / 380–480 V 3AC |
| Control Modes | V/f, Vector (sensorless/closed-loop), Servo |
| Overload Capability | 150% for 60 s / 200% for 3 s |
| Integrated Safety Functions | STO, SS1, SS2, SOS, SLS, SSM, SDI (SIL 3) |
| Communication Interfaces | PROFINET, PROFIBUS, EtherNet/IP, Modbus RTU |
| Switching Frequency | 2–16 kHz |
| Digital Inputs / Outputs | Up to 12 DI / 6 DO (CU dependent) |
| Analog Inputs / Outputs | Up to 4 AI / 4 AO (CU dependent) |
| Protection Rating | IP20 (frame) / IP55 (optional push-through) |
Key Features
- 1Modular architecture with separate Control Unit and Power Module for flexible configuration and simplified maintenance
- 2Integrated Safety Integrated functions certified to SIL 3 / PL e without external safety relays
- 3Seamless TIA Portal integration for unified engineering with SIMATIC PLCs and HMIs
- 4Automatic motor identification and auto-tuning for fast commissioning
- 5Intelligent energy management with ECO mode and integrated energy counter for efficiency monitoring
- 6Built-in PLC functionality (SINAMICS DCC) for decentralized drive-level automation tasks
Alternative Products
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Mitsubishi Electric FR-A800 Inverter
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Siemens SINAMICS G120C 6SL3210-1KE32-2UF1
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Siemens SINAMICS V20 6SL3210-5BB17-5AV0
Simple, cost-effective VFD for basic industrial applications.
Siemens SINAMICS G120P 6SL3210-1PE32-3UL0
Versatile VFD optimized for pump and fan operations.
Applications
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Frequently Asked Questions
References & Citations
Siemens AG
Siemens AG