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2-year Warranty

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Siemens 6SL3040-1LA01-0AA0

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DESCRIPTION: S120 Control Unit CU310-2 PN, w/o CF Card 


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2 Year warranty

Part Number6SL3040-1LA01-0AA0
Model #6SL30401LA010AA0
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 6SL3040-1LA01-0AA0 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 6SL3040-1LA01-0AA0 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 6SL3040-1LA01-0AA0, 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 6SL3040-1LA01-0AA0 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 6SL3040-1LA01-0AA0 Overview

What is the Siemens 6SL3040-1LA01-0AA0 and what does it do for the Power Module? 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 Controllers from other manufacturers such as FANUC and Yaskawa.

The Siemens SINAMICS S 120 module 6SL3040-1LA01-0AA0 is a CU310-2 control unit. The CU310-2 control unit is responsible for the communication interface function within the system.  This CU310-2 PROFINET unit is the control module for single motor drives.  The functions of the drive must be in open-loop and closed-loop control functions for the single motor drive.  What does it do for the Power Modules?  It controls the Power Module.  The Power Module must be used in the block size format or the chassis format. It does this by way of the PM – IF interface. The interface that goes to the Power module is located in the back of the CU310-2 (PM-IF).

What is controlled from the control unit by way of the DIRVE-CLiQ interface?  The Modules Chassis can be controlled, and these units are mounted next to the control unit inside the control cabinet unit. Is the CU120-2 able to be hot-plugged? Yes, the CU120 is able to be hot-plugged. Which version of firmware is applicable with the Siemens SINAMICS S 120 module 6SL3040-1LA01-0AA0? It must be used with firmware version 4.4 or higher. It contains a slot for a memory card hardware component. The memory card has a couple of parameters for Control Unit operation.  These parameters are firmware and default.

The Siemens SINAMICS S 120 module 6SL3040-1LA01-0AA0 CU310-2 is able to communicate through several interfaces. These communication features make it a valuable part of your drive system.

The Siemens communication module interfaces that are located on the 6SL3040-1LA01-0AA0 module are varied. 

A list of the type of interfaces found on the module includes isolated digital inputs. There are eleven of the isolated digital inputs. This unit has non-isolated digital input and outputs as well. There are eight of these non-isolated digital inputs and outputs. It has one isolated digital output as well as one non-isolated analog input. The number of X100 DRIVE-CLiQ interfaces to transmit and receive data is one. It has two PROFINET external communications interface. It has one X22 serial interface (RS232) to receive and transmit data and the maximum data rate is 120 kBaud at a load capacity of 1.0 nF/ 20kBaud at a load capacity of 2.5 nF. It also has one encoder interface (HTL/TT/SSI) with a 15-pin Sub-D socket for connection. Make sure to connect the KTY temp sensor with the right polarity to ensure safety. You can connect the temperature sensor in one of two ways.  Either via X120, terminals 1 and 2, or via X23, pin 1 and 8.  In order to connect using LAN (Ethernet), it has one port for that as well.  There is an X120 digital input (fail-safe)/ EP terminal /and one temperature sensor input.  There are three measuring sockets. The terminal is spring-loaded on terminal 1. The most you can cross-section connect is 1.5. (DI: digital input; DO: digital output; F-DI: Fail-safe digital input.) A note regarding fail-safe digital inputs: The F-DI has both a digital input and a second digital input.  That is where the optocoupler is connected through the cathode. 

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 6SL3040-1LA01-0AA0, take a look at more from our Controllers 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 6SL3040-1LA01-0AA0 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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I needed a special drive, found it, and I was quickly assisted by Joe Kaminski. Everything was exactly as it should be....


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