Siemens SINAMICS S110 Control Units (6SL3040/6SL3054) Product Discontinuation on 1 October 2026

Siemens has announced that the P.M410 product will be discontinued for Siemens SINAMICS S110 Control Units with effect from 1 October 2026. Spare parts will continue to be supplied until 1 October 2035. What are the implications of this for maintenance engineers and operators, and how can system availability be maintained for these components?

Which Siemens products are affected?

The notice concerns Siemens SINAMICS S110 Control Units. These assemblies control Siemens SINAMICS S110 servo drives. They connect the drive to the automation level. Siemens describes the Siemens CU305 control unit as an interface to the automation system.

Three Siemens products are affected. These include the Siemens Control Unit  CU305 DP 6SL3040-0JA00-0AA0, the Siemens Control Unit CU305 PN 6SL3040-0JA01-0AA0 and the Siemens firmware version 4.4 SP3 6SL3054-4TC00-2AA0. Siemens has announced that the P.M400 will be phased out on 1 October 2026. The P.M410 will be discontinued on 1 October 2026.

From 1 October 2026, Siemens will discontinue the affected Siemens SINAMICS S110 Control Units as new parts. Status P.M410 marks the start of the spare parts phase. New Siemens SINAMICS S110 Control Units will then generally no longer be available. Procurement and maintenance departments should assess their requirements at an early stage. The spare parts code will become significantly more important from this date onwards.

Siemens states that spare parts for the Siemens SINAMICS S110 Control Units will be supplied until 1 October 2035. Whilst this date provides planning certainty, it does not eliminate availability risks in individual cases. Critical systems therefore require a spare parts strategy. Repairs, replacement units and stockpiling reduce the risk of prolonged breakdowns.

Siemens recommends two migration paths. The Siemens SINAMICS S210 is suitable for servo applications in the lower power range. The Siemens SINAMICS G220 covers a wider range of drive applications. The appropriate solution depends on voltage, power, interfaces and machine function. A retrofit therefore requires technical assessment and careful scheduling.

Overview of the affected Siemens SINAMICS S110 Control Units

Siemens article numberSiemens productPrevious statusCurrent statusUpcoming statusSiemens successorEICHLER services
6SL3040-0JA00-0AA0Siemens SINAMICS S110 Control Unit CU305 DPP.M300 until 30 September 2025P.M400 since 1 October 2025P.M410 from 1 October 2026Siemens SINAMICS S210 / Siemens SINAMICS G220Repairs, testing, spare parts service, replacement units, Stock Management, Obsolescence Management
6SL3040-0JA01-0AA0Siemens SINAMICS S110 Control Unit CU305 PNP.M300 until 30 September 2025P.M400 since 1 October 2025P.M410 from 1 October 2026Siemens SINAMICS S210 / Siemens SINAMICS G220Repairs, testing, spare parts service, replacement units, Stock Management, Obsolescence Management

 

Legend:

  • PM300 indicates that the product is in active supply. Siemens supplies and markets the product as normal.
  • PM400 indicates an announcement that the product is being phased out. Siemens continues to supply the product but no longer actively markets it.
  • PM410 indicates product discontinuation. Siemens now only supplies the product as a spare part.
  • PM490 marks the end of Siemens' 10-year spare parts supply.
  • PM500 marks the end of the Siemens product life cylce.

What are the reasons for discontinuing the product?

Siemens cites the transformation from the Machinery Directive to the Machinery Regulation as the reason for discontinuing the product. The EU Machinery Regulation 2023/1230 will replace the Machinery Directive 2006/42/EC from 20 January 2027. The cut-off date provision does not allow for parallel application.

This does not automatically necessitate the replacement of existing systems. Nevertheless, the need for action is increasing. Maintenance, engineering and procurement departments should evaluate the Siemens SINAMICS S110 Control Units. Critical axes require clear spare parts and repair strategies.

Which Siemens products are unaffected?

Siemens lists several components that are not affected. These include the Power Modules PM240-2 6SL3210*, the Siemens BOP20 6SL3055-0AA00-4BA0 operator panel and the Siemens BOP20 6SL3064-3BB00-0AA0 blanking cover.

This distinction helps with stock checks. Stock levels can be clearly seperated, allowing critical items to be identified more quickly.

How does EICHLER provide financial security?

EICHLER repariert, wartet und verkauft Siemens SINAMICS S110 Control Units. Für Ihre Siemens SINAMICS S110 Control Units schafft das eine wirtschaftliche Alternative zur schnellen Migration. Reparatur und geprüfte Ersatzteile verlängern die Nutzungsdauer bestehender Anlagen.

EICHLER repairs, maintains and sells Siemens SINAMICS S110 Control Units. For your Siemens SINAMICS S110 Control Units, this offers a cost-effective alternative to rapid migration. Repairs and tested spare parts extend the service life of existing systems.

Do you have any questions? We'd be happy to assist you in person!

Important documents

Repair accompanying note

Download the repair accompanying note as a PDF, or use the digital repair registration and send your defective modules to the EICHLER Service Centre for repair.

Laughing Eichler technician points to green PDF with special sale of automation technology

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