SINAMICS S210 (6SL3) – Product discontinuation for Siemens drive technology as of 01.10.2025

The product discontinuation marks the transition to the spare parts phase. The Siemens SINAMICS S210 (6SL3) can no longer be ordered as a new part from 1 October 2025. From this date onwards, Siemens will only supply spare parts. These spare parts have their own identification mark. The last order date for new parts is 30 September 2025. The spare parts phase will last until 1 October 2034, milestone P.M490. After that, the spare parts obligation will end. The discontinuation will lead to a shortage on the market. Operators will have to adapt their spare parts strategies. Machines will remain usable, but will require alternative supply channels. EICHLER offers repair and spare parts to ensure operability for many years to come.

Products eventually reach the end of their technological life. Components and electronics are discontinued. In such cases, Siemens continues the product life cycle in a structured manner. Milestone P.M410 stands for the official product discontinuation. This phase marks the end of active market supply. The supply of new parts ends. The background to this is technological developments and the introduction of a successor. The SINAMICS S210 (6SL5) takes over the role of the 6SL3. Product discontinuation enables a clear structure for service, spare parts and discontinuation. Operators are given long-term planning security. EICHLER supports this phase with independent repairs and spare parts.

The Siemens SINAMICS S210 (6SL5) is the direct successor. Siemens positions it as a modern platform. The series meets higher requirements for performance, safety and communication. It features an extended OPC UA interface and optimised diagnostics. Functional compatibility from version V6.3 HF3 onwards facilitates migration. The successor thus completely replaces the previous 6SL3 models. Machine builders can plan new applications directly with the 6SL5 series. Existing machines can be converted to the 6SL5 after testing. For companies with long machine running times, however, repairing the 6SL3 remains an important part of the strategy. 

Compatibility is high, but not universal. Siemens confirms functional equality from firmware V6.3 HF3 onwards. Many motion profiles and safety functions remain identical. The motors of the SIMOTICS S-1FK2 series can also continue to be used. Differences arise in the hardware platform, licence structures and the SD card. Compatibility therefore depends on the control configuration. The application must be checked. EICHLER supports operators in the analysis. Repairing the existing 6SL3 also creates additional time for planned modernisation. 

The migration takes place in several steps. First, the existing axes are analysed. Motion profiles, safety functions and firmware versions must be checked. The SD card is replaced. The firmware of the 6SL5 must be at least V6.3 HF3. The control parameters are then adjusted. In many cases, the application behaviour can be transferred directly. Deviations arise in safety and OPC UA. Commissioning is carried out using the new engineering concept. The repair of the 6SL3 by EICHLER can serve as a temporary solution. This creates a longer time frame for modernisation. 

The SINAMICS S210 (6SL5) has a modernised hardware platform. Siemens integrates new safety functions and extended diagnostics. The OPC UA connection is more powerful. The SD card has new item numbers. Some parameter structures have been adjusted. The efficiency of the power stage has been improved. The control system works more precisely and supports modern SIMOTICS functions. Mechanical and electrical connections remain similar. For many applications, this results in almost identical behaviour.

Siemens will supply spare parts until milestone P.M490 on 1 October 2034. After that, the obligation to supply spare parts will end. The supply situation may deteriorate before this date. Electronic assemblies are subject to the component market. Delivery times and availability fluctuate greatly. This creates risks during ongoing operation. Repairs are becoming increasingly important. EICHLER offers an independent supply of tested spare parts and repairs at component level. The service will remain available even after P.M490. This significantly extends the service life of the machines.

New parts will be available until 30 September 2025. From 1 October 2025, the drive will only be available as a spare part. The period until discontinuation ends on 1 October 2034. Operators should therefore develop a spare parts strategy. Critical axes require a spare part to be kept in stock. Repair options should be planned for. It is advisable to evaluate the existing axes. EICHLER offers this analysis as part of its Life Cycle Management service. The online shop ensures the supply of tested spare parts. Repairs extend service life and reduce costs. 

The SINAMICS S210 (6SL5) offers higher performance. The control system works faster and more precisely. Safety functions have been expanded. The OPC UA connection offers new diagnostic options. The SD card has a more modern design. The hardware is more robust and efficient. Engineering has also been optimised. Functional equality from V6.3 HF3 onwards makes the transition easier. The 6SL5 thus offers a long-term platform with modern functions. For many companies, however, the transition is a project. Therefore, repairing the 6SL3 remains an important economic option for many years to come.

Functional compatibility begins with firmware V6.3 HF3. This version ensures that motion profiles, safety functions and motor control work almost identically. Without this firmware, compatibility is limited. The version therefore forms the basis for migrations. For each axis, it must be checked whether the application parameters are transferable. The SD card must be updated. Siemens offers new variants for this purpose. EICHLER supports operators in the testing process and enables longer use of the 6SL3 through repairs.