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2-year Warranty

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Siemens 6SN1118-0DG21-0AA1

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4 in stock

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2 Year warranty

Part Number6SN1118-0DG21-0AA1
TypeAC Drives
Model #6SN11180DG210AA1
Warranty2 Year
Axis1 AXIS
CompatibilitySUCCESSOR FOR 810D & 840D: 6SN1118-0DJ21-0AA1 / COMPATIBLE AS OF NC SOFTWARE 6.4.9

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed 6SN1118-0DG21-0AA1 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2-year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this 6SN1118-0DG21-0AA1 we also repair a wide range of other Siemens products, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty 6SN1118-0DG21-0AA1, just let us know, and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 1lb

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Ask about exchanging your faulty 6SN1118-0DG21-0AA1 for credit when ordering from MRO Electric

MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Siemens 6SN1118-0DG21-0AA1 Overview

Siemens products are manufactured in Germany and are designed for Automotive, aerospace, power generation, and electronics usage. They come with a 2-year warranty from MRO Electric. We also carry AC Drives from other manufacturers such as FANUC and Yaskawa.

6SN11180DG210AA1 SIMODRIVE 611-D

The 6SN11180DG210AA1, known as the SIMODRIVE 611-D Closed-Loop Plug-In Performance Control Unit, is a pivotal component in the field of industrial automation. Specifically designed for digital drives, including both feed and main spindle drives, this control unit orchestrates the intricate dance of motors and machinery with unparalleled precision and efficiency.


As a one-axis control unit, the 6SN11180DG210AA1 exemplifies advanced engineering in the realm of drive systems. Tailored to meet the demands of modern manufacturing, this control unit empowers engineers and operators to harness the potential of digital drives, ensuring optimal performance and exacting control over industrial processes.


At its core, the SIMODRIVE 611-D Closed-Loop Plug-In Performance Control Unit acts as the nerve center of a dynamic ecosystem. It seamlessly integrates with the broader framework of a drive system, facilitating the synchronized operation of feed and main spindle drives. This harmony is crucial for achieving smooth, accurate, and efficient movements across various industrial applications.

The control unit's closed-loop architecture introduces a new level of precision to drive systems. By constantly monitoring and adjusting parameters, it ensures that the motor's actual performance aligns perfectly with the desired output. This closed-loop feedback mechanism minimizes errors, reduces deviations, and guarantees the utmost consistency in operation.


Incorporating cutting-edge technology, the 6SN11180DG210AA1 brings the advantages of digitalization to the forefront. It leverages digital communication protocols and data exchange to enable seamless connectivity with other components of the system. This connectivity facilitates real-time monitoring, remote control, and data analysis, empowering engineers to make informed decisions and optimize performance from a distance.


The control unit's plug-in design further enhances its versatility and ease of integration. This modular approach simplifies installation, maintenance, and expansion. Engineers can effortlessly swap out components, such as control modules and memory modules while adhering to strict safety protocols to ensure uninterrupted functionality.


Furthermore, the SIMODRIVE 611-D control unit provides essential support for both feed and main spindle drives. This flexibility accommodates a wide spectrum of industrial applications, from precision machining on feed axes to high-torque operations on main spindle drives. Whether it's fine-tuning the movement of a cutting tool or orchestrating the rotation of a spindle, this control unit rises to the occasion with unwavering reliability.

In the fast-paced landscape of modern manufacturing, where precision and efficiency are paramount, the 6SN11180DG210AA1 stands as a testament to engineering excellence. Its role as a closed-loop plug-in performance control unit redefines what is achievable in drive systems. By seamlessly uniting digital drives and synchronizing their actions, it empowers industries to unlock new levels of productivity, accuracy, and control. As the heart and brain of a sophisticated ecosystem, this control unit paves the way for a future where automation transcends boundaries and possibilities are limitless.

Contact Us Today For More Information About Siemens Products

Check out the rest of our Siemens product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 6SN1118-0DG21-0AA1, take a look at more from our AC Drives line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 6SN1118-0DG21-0AA1 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

5 stars

4.9 Overall Satisfaction Rating

Over 1700 Ratings from Actual Customers

Read Our Reviews

Very happy with the overall service, delivery, communication and delivery,

Conley Cooke

I needed a special drive, found it, and I was quickly assisted by Joe Kaminski. Everything was exactly as it should be....


We have an older DMU80 CNC Machine and the Handheld Control was damaged beyond repair. MRO was very helpful in confirmin...

Abbey-Purchasing Specialist