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Siemens 6SN1118-0AA11-0AA1

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Part Number6SN1118-0AA11-0AA1
TypeAC Drives
Model #6SN11180AA110AA1
Warranty2 Year
DesignationControl Unit
Simodrive 611-AClosed loop
Interface Enhanced
Feed drive 1FT5

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 6SN1118-0AA11-0AA1 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 6SN1118-0AA11-0AA1 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 6SN1118-0AA11-0AA1, 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.

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Ask about exchanging your faulty 6SN1118-0AA11-0AA1 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 6SN1118-0AA11-0AA1 Overview

The Siemens 6SN1118-0AA11-0AA1 is a digital servo drive system designed for high-performance closed-loop control of industrial motors. This unit is a powerful and versatile drive system that supports a wide range of industrial applications and is capable of precise and reliable motor control. These 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.


One of the key features of the 6SN1118-0AA11-0AA1 is its ability to support both high-performance and high-standard drive functions. This makes it suitable for a wide range of industrial applications, from simple, low-speed machines to high-performance, high-speed systems that require rapid acceleration and precise positioning.


The drive system is designed to work with a variety of Siemens drive components, including NCU hardware versions 573.3, 572.3, and 571.3, as well as mixed operation, FD/MSD software versions 6.2.12 for both high-performance and high-standard drive functions. It also supports the PCU50/PCU20 commissioning tool.


The interface of the Siemens 6SN1118-0AA11-0AA1 includes a range of inputs and outputs that are used to control the motor and provide feedback to the drive system. These include relay start to inhibit signals, pulse enables signals, external zero mark inputs, brake control outputs, motor encoder connections, and equipment and drive buses.


One of the advantages of the 6SN1118-0AA11-0AA1 is its ability to operate in closed-loop mode. The digital servo drive is constructed to continuously monitor the performance of the motor and make adjustments to ensure that it is operating at peak efficiency. It achieves this by using feedback from the motor encoder to determine the position and speed of the motor and then making adjustments to the control signals to achieve the desired performance.


The 6SN1118-0AA11-0AA1 is also designed to be highly reliable and durable. It includes a range of protection features, including short-circuit protection, overvoltage protection, under-voltage protection, and overtemperature protection. These features help to ensure that the drive system is protected from damage and can operate reliably over an extended period of time.


In addition to its reliability and performance, the Siemens 6SN1118-0AA11-0AA1 is also easy to install and configure. It is designed to be simple to integrate with existing industrial control systems and comes with a range of software tools and documentation to help with setup and configuration.

FAQs - 6SN1118-0AA11-0AA1 AC Drive

Q: What is the 6SN1118-0AA11-0AA1 AC Drive?

A: The 6SN1118-0AA11-0AA1 is an AC Drive manufactured by Siemens, specifically designed as a Control Unit for the Simodrive 611-A closed-loop system, intended for 1-axis applications.

Q: What does the designation "Control Unit" imply for the 6SN1118-0AA11-0AA1?

A: The designation "Control Unit" indicates that the 6SN1118-0AA11-0AA1 serves as the central control component within the Simodrive 611-A closed-loop system, overseeing and managing the operation of a single axis.

Q: What type of interface does the 6SN1118-0AA11-0AA1 feature?

A: The 6SN1118-0AA11-0AA1 is equipped with an Enhanced Interface, facilitating seamless communication and interaction with other components within the system.

Q: What is the feed drive compatibility of the 6SN1118-0AA11-0AA1?

A: The 6SN1118-0AA11-0AA1 is compatible with the 1FT5 series of feed drives, ensuring optimal performance and compatibility within the Simodrive 611-A closed-loop system.

Q: What applications is the 6SN1118-0AA11-0AA1 suitable for?

A: The 6SN1118-0AA11-0AA1 is designed for a variety of industrial applications requiring precise control over motion and positioning, particularly in scenarios where a single-axis operation is involved.

Q: What distinguishes the Simodrive 611-A closed-loop system?

A: The Simodrive 611-A closed-loop system, to which the 6SN1118-0AA11-0AA1 belongs, is known for its high level of accuracy and reliability in closed-loop control applications, offering enhanced performance and stability.

Q: Can the 6SN1118-0AA11-0AA1 be used in multi-axis setups?

A: No, the 6SN1118-0AA11-0AA1 is specifically designated for single-axis applications within the Simodrive 611-A closed-loop system.

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 6SN1118-0AA11-0AA1, 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 6SN1118-0AA11-0AA1 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.

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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...

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