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2-year Warranty

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Siemens 6SL3040-0JA01-0AA0

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2 Year warranty

Part Number6SL3040-0JA01-0AA0
Model #6SL30400JA010AA0
Warranty2 Year
Control UnitCU305
Digital input5 inputs
Input voltage-3 ... 30 V
Power consumption @ 24 V DC6.0 mA
Fail safe inputs3 digital
Digital I/O4 I/O
Output voltageDC 24 V
Max load current per out100 mA
Analog inputs1 input
Power supplyDC 24 V -15 % + 20 %
Max power Consumption0.8 A
Max power loss20 W
Width 2.87 in
Height 7.68 in
Depth 2.80 in

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 6SL3040-0JA01-0AA0 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 6SL3040-0JA01-0AA0 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 6SL3040-0JA01-0AA0, 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 6SL3040-0JA01-0AA0 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 6SL3040-0JA01-0AA0 Overview

The 6SL3040-0JA01-0AA0 SINAMICS S110 Control Unit CU305 PN is a versatile and advanced control unit manufactured by Siemens. This control unit is specifically designed for the SINAMICS S110 drive system and offers a wide range of features and capabilities for precise motor control in various industrial applications. 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 control unit provides a variety of digital inputs and outputs. It has five digital inputs, with a voltage range of -3 to 30 V. The low-level voltage range is -3 to 5 V, while the high-level range is 15 to 30 V. The typical power consumption at 24 V DC is 6.0 mA. The delay time for a low-to-high transition is approximately 15 µs, and for a high-to-low transition, it is about 55 µs. The control unit also offers fail-safe digital inputs, with a total of three inputs.

For digital I/O, the control unit provides four digital channels that can be configured as inputs or outputs. The voltage range is the same as for digital inputs, and the power consumption is also 6.0 mA at 24 V DC. The delay time for both low-to-high and high-to-low transitions is approximately 5 µs. The digital outputs are continuous short-circuit proof, with a voltage rating of DC 24 V. The maximum load current per digital output is 100 mA, and the delay time is around 150 µs. The control unit also has one fail-safe digital output.

Analog Inputs 

The control unit features one analog input, with a voltage range of -10 to 10 V. It has a resolution of 12 bits plus a sign and an internal resistor of 15 kOhm.

Electrical Data: The power supply voltage for the control unit is DC 24 V, with a tolerance of -15% to +20%. The maximum power consumption is 0.8 A, and the maximum power loss is 20 W. The protection is rated at a maximum of 20 A.


The control unit supports communication via PROFINET, a widely used industrial communication protocol. It also has an on-board encoder interface for connecting encoders. The control unit can evaluate incremental encoders with TTL/HTL signals or SSI encoders without incremental signals. The current consumption for both 24 V DC and 5 V DC is 0.35 A. The control unit supports a maximum encoder frequency of 500 kHz and has a configurable SSI baud rate ranging from 100 to 250 kBaud. The SSI encoder provides a resolution of up to 30 bits for absolute position feedback.

Environmental Conditions 

The control unit is designed to operate in various environmental conditions. It has an installation altitude limit of 1,000 m. The ambient temperature during operation should be within the range of 0 to 55 °C, while the storage temperature can be between -25 to 70 °C. For transport, the recommended temperature range is -40 to 70 °C. The control unit can withstand a maximum relative humidity of 95% at 40 °C.

Connections and Mechanical Data 

The control unit has a PE connection with an M5 screw. The maximum wire size for the supply voltage is 2.5 mm² (AWG 14), while for digital inputs and outputs, it is 1.5 mm² (AWG 16). The net weight of the control unit is 0.95 kg (2.09 lb). It has compact dimensions, with a width of 73.0 mm (2.87 in), height of 195.0 mm (7.68 in), and depth of 71.0 mm (2.80 in).


The control unit complies with standards such as cULus, ensuring its adherence to safety and performance requirements.

The SINAMICS S110 Control Unit CU305 PN (6SL3040-0JA01-0AA0) is a reliable and feature-rich control unit that provides precise motor control and seamless communication in industrial applications. Its versatility, advanced functionality, and compliance with standards make it a valuable component in drive systems requiring high-performance control and monitoring capabilities.

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 6SL3040-0JA01-0AA0, 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 6SL3040-0JA01-0AA0 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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