6SL3120-1TE28-5AA3 SINAMICS S120 Single Motor Module 85A 46kW Booksize

The 6SL3120-1TE28-5AA3 is a SINAMICS S120 Single Motor Module designed for one high-current motor axis in a modular drive system.

It receives power from a shared 600 V DC link and delivers controlled three-phase 400 V AC output with a rated current of 85 A.

This higher output-current class makes the module suitable for demanding servo, spindle and production-machine axes that require more power than standard 45 A or 60 A Single Motor Modules.

The approximately 46 kW power class supports machine functions involving higher continuous torque, rapid acceleration or substantial mechanical loads.

Its Booksize housing allows side-by-side installation with compatible Line Modules, Control Units and additional Motor Modules. The 200 mm module width should be confirmed when planning a replacement or cabinet retrofit.

The 6SL3120-1TE28-5AA3 supports optimized pulse patterns and extended Safety Integrated functions when it is used with compatible control hardware, feedback devices, firmware and safety configuration.

Key Features

• 85 A single-axis motor output
• Approximately 46 kW power class
• 600 V DC-link input
• Three-phase 400 V AC output
• High-current Booksize construction
• 200 mm module width
• Internal air cooling
• Optimized pulse patterns
• Extended Safety Integrated support
• DRIVE-CLiQ cable included

Typical Applications

• Main spindle drives
• Heavy CNC axes
• Printing machinery
• Converting equipment
• High-load automation systems

85 A High-Current Axis Control

The 6SL3120-1TE28-5AA3 provides one motor channel rated at 85 A.

This output class is suitable for:

• High-torque servo motors
• Main spindle motors
• Large positioning axes
• High-inertia mechanical loads
• Rapid acceleration cycles
• Continuous production machinery

Compared with lower-current modules, the 85 A version provides additional power-stage capacity for more demanding motor loads.

46 kW Power Class

The module is commonly associated with an approximately 46 kW output class.

Actual usable motor power depends on:

• Motor voltage
• Motor current
• Duty cycle
• Switching frequency
• Overload requirements
• Cooling conditions
• Drive parameterization

The motor and module should be selected using current, overload and duty-cycle data rather than power alone.

Single Motor Module Function

The module provides motor-side power conversion for one independently controlled axis.

Its functions include:

• Motor-current regulation
• Speed-control support
• Torque-control support
• Axis power management
• Dynamic acceleration and deceleration
• Drive-system diagnostics

The Control Unit performs the higher-level control and motion calculations.

Booksize Installation

The Booksize structure is designed for modular electrical-cabinet systems.

Installation benefits include:

• Side-by-side drive arrangement
• Shared DC-link connections
• Organized multi-axis architecture
• Short internal power connections
• Easier system expansion

Because this is an 85 A module, cabinet space and cooling requirements are greater than those of lower-current modules.

Internal Air Cooling

The 6SL3120-1TE28-5AA3 uses internal air cooling.

Reliable operation requires:

• Correct vertical mounting
• Unobstructed ventilation paths
• Adequate cabinet airflow
• Clean cooling channels
• Suitable ambient temperature
• Correct installation clearances

Blocked airflow can cause thermal faults or reduced output capability.

Energy Flow During Braking

When the connected motor decelerates, energy may flow from the motor axis back into the shared DC link.

What happens to this energy depends on the complete drive system:

• It may be consumed by another motor axis
• It may be dissipated through a braking resistor
• It may be returned to the mains by a regenerative Line Module
• It may raise the DC-link voltage if no suitable energy path is available

Therefore, the 6SL3120-1TE28-5AA3 should not be described as a standalone regenerative drive.

Safety Integrated Support

The module supports extended Safety Integrated functions when installed in a compatible configuration.

Available functions depend on:

• Control Unit
• Firmware version
• Motor encoder
• Safety licensing
• DRIVE-CLiQ topology
• Machine safety programming

Do not publish a specific SIL or PL rating unless the entire implemented safety function has been validated.

DRIVE-CLiQ Integration

The included DRIVE-CLiQ cable supports communication between compatible drive components.

Typical functions include:

• Automatic component identification
• Parameter transfer
• Status monitoring
• Fault diagnostics
• System topology detection
• Simplified commissioning

System Integration

A complete operating system normally requires:

• Compatible Line Module
• Shared DC link
• Control Unit
• Single Motor Module
• Compatible motor
• Encoder or motor feedback
• DRIVE-CLiQ communication
• Approved drive parameters

The 6SL3120-1TE28-5AA3 is not a standalone frequency inverter.

Replacement Identification

Correct Model Number

6SL3120-1TE28-5AA3

Product Configuration

Single Motor Module

85 A rated output

Approximately 46 kW power class

600 V DC input

400 V AC three-phase output

Booksize construction

200 mm width

Internal air cooling

Before replacement, confirm:

• Complete order number
• 5AA3 suffix
• Rated output current
• Module width
• Motor current
• Cooling method
• Firmware compatibility
• Safety configuration
• DRIVE-CLiQ topology

Do not replace the module only according to its physical appearance.

Installation Guidelines

Disconnect the incoming mains supply.

Wait for the DC link to discharge completely.

Verify the absence of hazardous voltage.

Confirm the exact model number.

Inspect DC-link busbars and contacts.

Check motor and feedback connections.

Confirm cabinet airflow.

Connect DRIVE-CLiQ correctly.

Restore the approved drive parameters.

Test the motor at reduced speed.

Verify current and thermal behavior.

Test safety functions before production use.

Installation should be completed by qualified drive-system personnel.

FAQ

Q1: What is 6SL3120-1TE28-5AA3?

A1: It is a SINAMICS S120 Single Motor Module for one high-current motor axis.

Q2: What is its rated output current?

A2: The rated output current is 85 A.

Q3: What power class does it support?

A3: It is commonly associated with an approximately 46 kW power class.

Q4: What input voltage does it use?

A4: It receives power from a 600 V DC link.

Q5: What output voltage does it provide?

A5: It provides controlled three-phase 400 V AC output.

Q6: What is the module width?

A6: The Booksize module is approximately 200 mm wide.

Q7: Is this a regenerative drive?

A7: Not by itself. Braking energy enters the shared DC link, while mains regeneration depends on the installed Line Module and system design.

Q8: What cooling method is used?

A8: It uses internal air cooling.

Q9: Does it support Safety Integrated functions?

A9: Yes. It supports extended Safety Integrated functions in a compatible drive and safety configuration.

Q10: Is a DRIVE-CLiQ cable included?

A10: Yes. The official product configuration includes a DRIVE-CLiQ cable.