Siemens 6SL3120-2TE21-8AC0

The Siemens 6SL3120-2TE21-8AC0 provides a continuous rated current of 18 A per axis and uses the DRIVE-CLiQ interface for communication within the S120 system. Its dual-axis configuration can reduce cabinet space and simplify the drive arrangement where two servo axes are required.

Core Advantages and Functions

Dual-axis Design

The 6SL3120-2TE21-8AC0 combines two drive axes in one module. Where an application requires two servo axes, this arrangement can reduce the installation space compared with using two separate single-axis modules. It also reduces the amount of cabinet wiring associated with the drive section.

Integrated Safety Functions

The module supports Safety Integrated functions within the compatible SINAMICS S120 configuration. These functions can be used for machine safety applications where controlled shutdown and other safety-related drive functions are required.

DRIVE-CLiQ Communication

DRIVE-CLiQ provides the communication link between the drive components and the associated control unit. In multi-axis applications, this allows the drive system to coordinate the connected axes with the timing required for synchronized motion.

Motor Compatibility

The module can be used with compatible Siemens motor configurations, including 1FK7, 1FT6 and 1PH8 motor families, subject to the specific system configuration. DRIVE-CLiQ encoders and supported external encoder arrangements can also be used according to the selected drive setup.

Cooling and Diagnostics

The module uses integrated air cooling to manage operating temperature. The SINAMICS S120 system also provides diagnostic functions that help maintenance personnel identify drive and communication faults during commissioning and service.

Product Features

The main difference of the Siemens 6SL3120-2TE21-8AC0 is its two-axis configuration. Each axis provides a continuous rated current of 18 A, while the compact C-size housing allows the drive section to be arranged efficiently inside the control cabinet.

The module communicates through four DRIVE-CLiQ interfaces and can be integrated with compatible S120 components such as the CU320-2 control unit and associated power modules. It can also be used with SIMOTION D controllers in suitable motion-control configurations.

A DRIVE-CLiQ cable is included with the supplied package where specified.

Parameter

Daily Maintenance

Regular maintenance mainly concerns the module's operating environment and electrical connections.

Cleaning: Dust should be removed from the module surface and ventilation openings with dry compressed air. When compressed air is used, keep the pressure within the equipment manufacturer's recommended range.

Cooling: Check that cabinet ventilation is unobstructed and that the internal cooling fan operates normally. Excessive dust or restricted airflow can increase the module's operating temperature.

Electrical Connections: Power, motor and DC-bus connections should be checked periodically for looseness, oxidation or other visible abnormalities. Measurements should be carried out according to the applicable Siemens service procedures.

Service Life: For equipment operating continuously, maintenance planning should take the service life of relevant drive components into account. Keeping a compatible spare module available can also reduce downtime when an unexpected drive fault occurs.

FAQ

Is 6SL3120-2TE21-8AC0 available for replacement or spare-part orders?
Yes. Yueyang Tongtu supplies Siemens 6SL3120-2TE21-8AC0 for equipment maintenance, replacement and spare-part procurement. Availability, product condition and delivery time can be confirmed before ordering.

How can I confirm whether 6SL3120-2TE21-8AC0 is suitable for my SINAMICS S120 system?
Please provide the complete model number, existing drive configuration or nameplate information. We can help check the module specification and its compatibility with the existing SINAMICS S120 system before quotation.

Is the 6SL3120-2TE21-8AC0 an 18A dual-axis Motor Module?
The supplied specification identifies it as a dual-axis module with a continuous rated current of 18A per axis. For replacement orders, the complete part number and machine configuration should be checked rather than selecting the module by current rating alone.

Can you provide a quotation for Siemens 6SL3120-2TE21-8AC0?
Yes. Send us the required quantity, destination country and any product condition requirements. We can provide a quotation based on the current supply status and shipping requirements.

What information should I provide when purchasing this Siemens module?
The model number 6SL3120-2TE21-8AC0 is the most important information. If possible, also provide the equipment model, existing module photos or nameplate details, required quantity and delivery destination. This helps reduce the risk of ordering an incorrect replacement.

Can this module be used with CU320-2 or SIMOTION D systems?
It is designed for use within the SINAMICS S120 drive system and can be used with compatible control configurations such as CU320-2 and SIMOTION D. Actual compatibility depends on the complete system configuration, firmware and application requirements.