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2-year Warranty

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Siemens 6FC5220-0AA21-2AA0


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1 Available

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2 Year warranty

Part Number6FC5220-0AA21-2AA0
Model #6FC52200AA212AA0
Warranty2 Year

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 6FC5220-0AA21-2AA0 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 6FC5220-0AA21-2AA0 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 6FC5220-0AA21-2AA0, 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 : 7lbs

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  • If you order between 4pm and 6pm EST, you will be charged a small rush fee.

Ask about exchanging your faulty 6FC5220-0AA21-2AA0 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 6FC5220-0AA21-2AA0 Overview

Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50

Enter the realm of precision engineering and advanced automation with the Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50. As a cornerstone of Siemens' renowned SINUMERIK series, this robust control unit embodies cutting-edge technology and reliability, empowering industries with unparalleled performance and efficiency.

Advanced Processing Power

At the heart of the Siemens 6FC5220-0AA21-2AA0 lies a potent processing powerhouse, boasting a clock speed of 566 MHz and a memory capacity of 256 MB. This formidable combination ensures lightning-fast computations and seamless execution of complex machining tasks. Whether milling, turning, grinding, or any other CNC (Computer Numerical Control) operation, this control unit delivers the processing power needed to achieve precision and productivity.

Robust Design for Industrial Environments

Engineered for the rigors of industrial environments, the Siemens 6FC5220-0AA21-2AA0 features a robust construction that withstands the demands of continuous operation. A 24 V DC power supply ensures reliable performance even in challenging conditions. Whether deployed in manufacturing plants, fabrication facilities, or machining centers, this control unit remains steadfast, delivering consistent results daily.

Inclusive MCI2-Board for Enhanced Functionality

Equipped with an inclusive MCI2-board, the Siemens 6FC5220-0AA21-2AA0 extends its functionality and versatility. This board enables seamless integration with machine tool interfaces, facilitating communication and control between the control unit and peripheral devices. Whether interfacing with sensors, actuators, or other CNC components, the MCI2-board enhances the control unit's capabilities, empowering users with greater flexibility and control.

Efficiency and Reliability with Windows XP

Operating on the Windows XP platform, the Siemens 6FC5220-0AA21-2AA0 combines efficiency with reliability. This familiar operating system provides a user-friendly interface, streamlining setup, programming, and monitoring tasks. Its stability and compatibility also ensure seamless integration with existing software applications, minimizing downtime and optimizing productivity. Whether navigating through machining parameters or analyzing production data, operators can rely on the familiarity and efficiency of Windows XP.

Empowering Precision Machining

As a vital component of CNC systems, the Siemens 6FC5220-0AA21-2AA0 drives precision machining to new heights. Whether achieving tight tolerances, intricate geometries, or high-speed operations, this control unit empowers manufacturers with the tools they need to excel in today's competitive landscape. With its advanced processing power, robust design, inclusive MCI2-board, and Windows XP operating system, it stands as a beacon of precision, reliability, and efficiency in industrial automation.

Frequently Asked Questions (FAQ) about Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50

1. What is the Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50?

The Siemens 6FC5220-0AA21-2AA0 is a sophisticated control unit, specifically the SINUMERIK 840DI/DIE PCU 50 model. It is a crucial component in CNC (Computer Numerical Control) systems, facilitating precise and efficient control over machining operations.

2. What are the key specifications of the Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50?

Key specifications of this control unit include:

  • Processing power: 566 MHz
  • Memory capacity: 256 MB
  • Power supply: 24 V DC
  • Inclusive MCI2-board for enhanced functionality
  • Operating system: Windows XP

3. What are the applications of the Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50?

This control unit is designed for a wide range of CNC applications, including:

  • Milling
  • Turning
  • Grinding
  • Drilling
  • Laser cutting
  • Electrical discharge machining (EDM)
  • Multi-axis machining

4. How does the Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50 enhance precision and efficiency in machining?

The Siemens 6FC5220-0AA21-2AA0 SINUMERIK 840DI/DIE PCU 50 enhances precision and efficiency in machining by providing the following:

  • High processing power for fast and accurate computations
  • Memory capacity for storing complex machining programs and data
  • Inclusive MCI2-board for seamless integration with machine tool interfaces
  • User-friendly Windows XP operating system for intuitive setup, programming, and monitoring

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 Accessories from other manufacturers such as FANUC and Yaskawa.

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 6FC5220-0AA21-2AA0, take a look at more from our Accessories 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 6FC5220-0AA21-2AA0 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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