The 6SL3040-1MA00-0AA0 is a SINAMICS S120 CU320-2 DP Control Unit designed for centralized control of modular multi-axis drive systems using PROFIBUS DP communication.
It processes the open-loop and closed-loop control functions required by connected Line Modules, Single Motor Modules and Double Motor Modules.
The CU320-2 DP coordinates multiple drive objects, manages operating parameters and exchanges commands and diagnostic data with the machine automation controller.
Unlike a Motor Module, the 6SL3040-1MA00-0AA0 does not provide motor power. It acts as the main drive controller while the connected Motor Modules convert DC-link energy into controlled motor output.
The PROFIBUS interface makes this version suitable for machines built around established DP communication architectures. It should be distinguished from the CU320-2 PN version, which uses PROFINET instead.
The unit is supplied without a CompactFlash Card. The correct card, firmware, licenses and drive project must therefore be confirmed before installation or replacement.
Key Features
- CU320-2 DP multi-axis Control Unit
- Integrated PROFIBUS DP interface
- DRIVE-CLiQ component communication
- Centralized Line and Motor Module control
- Supports open-loop and closed-loop functions
- Suitable for modular multi-axis systems
- Supports PROFIsafe configurations
- CompactFlash Card not included
- Active replacement product
Typical Applications
- Multi-axis CNC machines
- Printing and converting lines
- Packaging equipment
- Material handling systems
- Automated production machinery
Central Multi-Axis Control
The CU320-2 DP serves as the central controller for the modular drive system.
Its functions include:
- Processing motor-control algorithms
- Coordinating multiple drive axes
- Managing speed and torque control
- Supporting positioning functions
- Monitoring Line and Motor Modules
- Processing drive alarms
- Managing system diagnostics
- Communicating with the machine PLC
The number of controllable axes depends on the selected control mode, controller cycle, activated functions and overall drive configuration.
PROFIBUS DP Communication
The 6SL3040-1MA00-0AA0 communicates with compatible automation controllers through PROFIBUS DP.
Typical transferred data includes:
- Control words
- Drive setpoints
- Actual speed values
- Torque information
- Drive status
- Warning messages
- Fault data
- Diagnostic information
The PROFIBUS address, telegram type and PLC project must match the original machine configuration.
PROFIsafe Capability
In compatible safety systems, safety commands can be transmitted through PROFIsafe over PROFIBUS.
Possible Safety Integrated functions depend on the complete hardware and software configuration.
System requirements may include:
- Fail-safe PLC
- PROFIsafe configuration
- Compatible firmware
- Safety licenses
- Suitable motor feedback
- Validated safety parameters
The Control Unit alone does not determine the final SIL or PL rating of the machine.
DRIVE-CLiQ System Integration
DRIVE-CLiQ connects the CU320-2 DP with compatible drive components.
Typical connected devices include:
- Active Line Modules
- Smart Line Modules
- Basic Line Modules
- Single Motor Modules
- Double Motor Modules
- Sensor Modules
- Terminal Modules
- Servo motors
- Motor encoders
DRIVE-CLiQ supports:
- Automatic component identification
- Parameter communication
- Electronic nameplate reading
- Status monitoring
- Fault diagnostics
- System topology detection
CompactFlash Card Requirement
The 6SL3040-1MA00-0AA0 is supplied without a CompactFlash Card.
The card may contain:
- Drive firmware
- Axis configuration
- Motor parameters
- Communication settings
- Safety licenses
- Technology functions
- Machine-specific project data
Before installation, verify:
- CompactFlash Card order number
- Firmware version
- Performance extension
- Safety license
- Project compatibility
- Original parameter backup
A controller without the correct card and project may not start the drive system correctly.
CU320-2 DP vs Original CU320
CU320-2 DP
6SL3040-1MA00-0AA0
Current CU320-2 generation
PROFIBUS DP interface
No CompactFlash Card included
Original CU320
6SL3040-0MA00-0AA1
Earlier hardware generation
Legacy replacement controller
Different firmware and compatibility requirements
These two models should not be treated as direct replacements without project and hardware verification.
CU320-2 DP vs CU320-2 PN
CU320-2 DP
6SL3040-1MA00-0AA0
PROFIBUS DP communication
CU320-2 PN
6SL3040-1MA01-0AA0
PROFINET communication
The correct controller must be selected according to the PLC network and original machine project.
System Components
A complete operating system may include:
- CU320-2 DP Control Unit
- CompactFlash Card
- PROFIBUS network
- Line Module
- DC-link system
- Single Motor Modules
- Double Motor Modules
- Sensor Modules
- Servo or spindle motors
- DRIVE-CLiQ connections
The CU320-2 DP is not a standalone PLC or motor power module.
Replacement Identification
Correct Model Number
6SL3040-1MA00-0AA0
Correct Product Type
CU320-2 DP Control Unit
Fieldbus
PROFIBUS DP
Memory Supply
Without CompactFlash Card
Before replacement, confirm:
- Complete order number
- PROFIBUS version
- CompactFlash Card
- Firmware version
- Drive project backup
- Safety licenses
- DRIVE-CLiQ topology
- Connected drive objects
- Communication telegrams
- Machine safety configuration
Do not replace it only according to the CU320-2 name or physical appearance.
Installation Guidelines
Disconnect the complete drive-system power.
Wait for the DC link to discharge.
Verify the absence of hazardous voltage.
Back up all drive parameters.
Record the PROFIBUS address.
Record the DRIVE-CLiQ topology.
Confirm the CompactFlash Card.
Verify the exact order number.
Install the Control Unit securely.
Reconnect PROFIBUS and DRIVE-CLiQ cables.
Restore the approved project.
Check all connected modules.
Test each axis individually.
Verify PROFIsafe and machine safety functions.
Commissioning should be completed by qualified drive-system personnel.
FAQ
Q1: What is 6SL3040-1MA00-0AA0?
A1: It is a SINAMICS S120 CU320-2 DP Control Unit for modular multi-axis drive systems.
Q2: What fieldbus does it use?
A2: It uses PROFIBUS DP communication.
Q3: Is it a CU320-2 PN controller?
A3: No. The PN version uses model 6SL3040-1MA01-0AA0 and communicates through PROFINET.
Q4: Does it directly power a motor?
A4: No. Connected Motor Modules provide the motor power output.
Q5: What is its main function?
A5: It performs drive control, axis coordination, parameter management and system diagnostics.
Q6: Is a CompactFlash Card included?
A6: No. The official product configuration is supplied without a CompactFlash Card.
Q7: Is a CompactFlash Card required?
A7: Yes. A compatible card containing the required firmware, licenses and drive project is normally required.
Q8: Does it support DRIVE-CLiQ?
A8: Yes. DRIVE-CLiQ connects compatible Line Modules, Motor Modules, sensors and motors.
Q9: Can it support safety communication?
A9: Yes. PROFIsafe over PROFIBUS can be used in a compatible Safety Integrated configuration.
Q10: Can it directly replace 6SL3040-0MA00-0AA1?
A10: Not automatically. The original CU320 and CU320-2 DP use different hardware generations, so firmware, project and system compatibility must be checked.
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