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9 Reasons to Use Siemens VFD for Your Rockwell ControlLogix Application

Written by John Pokrandt | Mar 26, 2025 2:04:06 PM

 

Seamlessly Integrating Siemens SINAMICS G120 Drives with Rockwell Logix PLCs: What You Need to Know

Manufacturers are constantly looking for ways to enhance performance and reduce costs. Siemens SINAMICS variable frequency drives (VFDs) offer a compelling solution for those seeking seamless integration with existing automation systems, particularly Rockwell Logix PLCs. 9 key reasons for the shift include: 

  1. Superior Performance & Cost Savings: SINAMICS drives deliver high efficiency and advanced control features.
  2. Flexible Communication: The PN version operates on both Rockwell (Ethernet I/P) and Siemens (Profinet) networks with just one parameter change.
  3. Built-In Connectivity: Integrated dual-port Ethernet switch simplifies networking. 
  4. Enhanced Safety: Basic Safety comes standard on all SINAMICS VFDs. 
  5. Convenient Commissioning: Control units power up with 24VDC, allowing for programming and I/O checkouts without full power.
  6. Consistency Across Models: All SINAMICS drives use the same parameter sets, ensuring easy scalability and standardization.
  7. Simplified Integration: Siemens provides Add-On Instructions (AOIs) and an unkeyed Electronic Data Sheet (EDS) file, eliminating firmware management concerns.
  8. User-Friendly Programming: Startdrive software, available for free, enables straightforward drive configuration.
  9. Technical Support: Siemens offers free phone support for up to an hour per call. 

 

Benefits of Upgrading to SINAMICS G120 While Maintaining Rockwell Logix PLCs 

Manufacturers that rely on Rockwell Logix PLCs for automation control can seamlessly integrate Siemens SINAMICS G120 drives into their existing systems, gaining several key advantages. The multi-PLC compatibility of SINAMICS G120 allows it to work with Rockwell ControlLogix, CompactLogix, and even Siemens S7 PLCs, ensuring flexibility across different control architectures. Additionally, Siemens migration solutions make it easier to replace obsolete Rockwell VFDs, reducing complexity and downtime. This upgrade also provides a cost-effective alternative, as SINAMICS G120 drives can be more efficient and easier to implement than current Allen-Bradley VFDs, especially in legacy systems. 

 

Overcoming Common Challenges in Drive Integration 

Integrating variable frequency drives (VFDs) into existing automation systems can present challenges, but Siemens provides solutions to streamline the process. Compatibility concerns are minimized with standardized parameter sets across all SINAMICS drives, making integration more straightforward. For manufacturers using older automation systems, Siemens offers migration solutions for legacy Rockwell PLCs such as the PLC-5 and SLC 500, ensuring minimal disruption during upgrades. Additionally, Siemens provides simplified configuration tools, which help users easily select, configure, and integrate SINAMICS drives into their control systems.

Simplified Configuration Tools:
  • TIA Selection Tool
  • SINAMICS Selector Tool
  • SINAMICS Startdrive for TIA Portal

 

Step-by-Step Integration Process 

Siemens offers a range of low-voltage drives designed to meet various industrial applications. The SINAMICS G series consists of general-purpose drives ideal for standard applications, while the SINAMICS S series provides high-performance and servo drives tailored for advanced motion control. 

How to Configure and Commission a G120 Drive 
Commissioning a SINAMICS G120 drive can be done through multiple methods, offering flexibility based on user preference and application needs. The drive can be configured using an Operator Panel, such as the BOP-2 (Basic Operator Panel) or the IOP-2 (Intelligent Operator Panel), for direct on-device setup. Another option is the Smart Access Module (SAM), which enables wireless commissioning via a mobile device or laptop for added convenience. Additionally, Startdrive Software allows users to connect via USB for programming, diagnostics, and parameter adjustments. A crucial step in the setup process is configuring the correct communication settings, such as adjusting Telegram P922 as needed. 

 
Connecting SINAMICS Drives to Rockwell PLCs via EtherNet/IP™ and Studio 5000 
  1. Set Network Protocol: Change P2030 to 10, then reboot the drive.
  2. Follow Siemens Application Example: SIOS ID #109824950
  3. Register EDS File: Import into Studio 5000.
  4. Add Drive to Network: Configure EtherNet/IP settings.
  5. Import Sample Code: Utilize AOIs and faceplates for streamlined integration. 

 

GCG's Hands-On Workshops: What to Expect 

GCG’s hands-on workshops provide real-world applications and practical experience, allowing participants to engage directly with SINAMICS drives and Rockwell PLCs. At these hands-on labs, attendees will learn how to set up, control, and diagnose SINAMICS drives, integrate them with Rockwell PLCs and PanelView Plus HMIs, and facilitate messaging between Rockwell PLCs and SINAMICS G120 drives. GCG application engineers with years of experience and training lead the trainings.

Who Should Attend?
These workshops are ideal for controls engineers and maintenance teams, as well as system integrators and OEMs working with Rockwell PLCs on EtherNet/IP. Additionally, end users with an installed base of Rockwell Automation PLCs will benefit from learning how to integrate and optimize Siemens drives within their existing infrastructure.

 

 

Can't attend one of our hands-on workshops? Click here to view a walk through of the lab done at the training.

For more information, visit the links below: 


Reach out to discover how Siemens SINAMICS drives can optimize your operations while maintaining your Rockwell automation infrastructure! 

 
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