ProductPRODUCT
Featured products
Contact Us
- Siemens
- 6SN1118-0DK23-0AA1
- Digital Closed-Loop Plug-In Performance Control Unit
- Germany
- 330 × 51 × 127 mm
- 0.8 kg
- Xiamen, China
- New & In Stock
- T/T, PayPal, Western Union
- 1 Year
- 1-3 Working Days
- DHL, UPS, TNT, FedEx and EMS.
- 24-Hour Service
- COO
- 8
Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |
Product Overview
The Siemens 6SN1118-0DK23-0AA1 is a high-performance digital closed-loop control unit for the SIMODRIVE 611-D drive system. Configured for two axes, it handles digital drive-control functions for compatible feed drives and main spindle drives in CNC machine tools. Its defining configuration includes a direct measuring system, allowing the drive architecture to incorporate position feedback measured independently of the motor encoder.
In a CNC machine, the control unit processes drive commands and feedback information as part of the motion-control system. The numerical control coordinates the requested movement, while the associated drive electronics and feedback devices support regulation of the assigned axes. This arrangement is particularly relevant where machine positioning depends on the actual movement of a mechanical axis rather than motor rotation alone.
The module supports encoders with sin/cos 1 Vpp signals and uses a digital speed/torque setpoint interface. Its operation depends on the complete drive configuration, including the measuring system, connected power modules, encoder wiring, and applicable NC software. The specified software requirement begins at version 06.04.09.
The 6SN1118-0DK23-0AA1 is a plug-in control component, not a complete servo drive. When replacing an existing unit, the full article number and direct-measuring-system configuration must be checked to avoid confusing it with related SIMODRIVE 611-D variants that use different feedback arrangements.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Siemens |
| Model / Article Number | 6SN1118-0DK23-0AA1 |
| Product Family | SIMODRIVE 611-D |
| Product Type | Digital Closed-Loop Plug-In Performance Control Unit |
| Control Performance | High Performance |
| Number of Axes | 2 |
| Encoder Interface | sin/cos 1 Vpp |
| Measuring System | Direct Measuring System |
| Setpoint Interface | Digital Speed/Torque Setpoint |
| Drive Applications | Feed Drives and Main Spindle Drives |
| NC Software Requirement | Version 06.04.09 or later |
| Dimensions | 330 × 51 × 127 mm |
| Weight | 0.8 kg |
Product Features
- Two-axis digital control: Handles closed-loop control functions for two configured drive axes within the SIMODRIVE 611-D architecture.
- Direct measuring system support: Accommodates a drive configuration that uses direct position feedback from the machine’s measuring system.
- High-performance regulation: Supports demanding CNC motion-control applications involving feed and spindle drives.
- sin/cos 1 Vpp encoder interface: Matches the specified encoder signal type for compatible feedback devices.
- Digital speed/torque setpoints: Integrates with the digital setpoint architecture of the associated drive system.
- CNC software integration: Requires compatible NC software and correctly configured drive parameters.
- Plug-in control architecture: Installs within the corresponding SIMODRIVE 611-D assembly rather than operating as an independent motor drive.
Working Principle
The 6SN1118-0DK23-0AA1 processes digital control information for its assigned drive axes. The CNC controller supplies the motion commands, while the drive’s feedback devices report movement and position information. The control unit participates in the regulation process that coordinates the commanded movement with the measured response.
The direct measuring system is an important part of this model’s configuration. A motor encoder measures motor rotation, whereas a direct measuring system can measure the position of the machine element itself. Depending on the mechanical arrangement, this additional feedback can help the control system account for movement between the motor and the working axis.
The general control path is:
CNC Controller → 6SN1118-0DK23-0AA1 → SIMODRIVE Power Module → Motor and Machine Axis → Direct Measuring System → Feedback
The unit supports the specified sin/cos 1 Vpp encoder interface. The feedback device, cabling, channel assignment, and drive parameters must correspond to the intended configuration. The power module supplies the energy needed by the motor, while the control unit performs the associated digital control functions.
During commissioning, the measuring-system configuration must be checked alongside the axis assignments and NC software. An incorrect feedback connection or an incompatible control configuration can prevent proper positioning or cause drive faults. Replacing the unit with another module from the same product family does not automatically guarantee equivalent operation.
Role in the SIMODRIVE 611-D Control Architecture
The 6SN1118-0DK23-0AA1 occupies the digital control layer of a SIMODRIVE 611-D installation. It links CNC motion commands with the closed-loop regulation of two configured drive axes, using the feedback arrangement specified for the machine.
CNC Controller → Digital Control Unit → Power Module → Drive Motor → Machine Axis and Measuring System → Feedback
| System Element | Function |
|---|---|
| 6SN1118-0DK23-0AA1 | Performs high-performance digital control functions for two configured axes |
| CNC Controller | Generates motion commands and coordinates machine operation |
| SIMODRIVE 611-D Power Module | Supplies electrical power to the associated motor |
| Feed Drive Motor | Produces controlled linear or rotary feed movement through the machine mechanism |
| Main Spindle Drive | Provides spindle motion where included in the configured system |
| Direct Measuring System | Measures the relevant mechanical position |
| sin/cos 1 Vpp Feedback Devices | Supply compatible measurement signals |
| NC Software and Drive Parameters | Define the axis assignments, feedback configuration, and control behavior |
Industrial Applications
| Application | Typical Use |
|---|---|
| CNC Milling Machines | Controlling configured feed axes with direct position feedback |
| CNC Turning Centers | Coordinating feed and spindle motion within a compatible drive system |
| Precision Machine Tools | Incorporating direct measuring-system feedback into closed-loop regulation |
| Grinding Machines | Supporting machine-axis control where the drive configuration requires direct measurement |
| Multi-Axis CNC Equipment | Integrating two assigned axes within the SIMODRIVE 611-D architecture |
| Machine Tool Refurbishment | Replacing an existing control unit while retaining the required feedback arrangement |
| Industrial Drive Maintenance | Restoring digital control functions after checking the hardware and software configuration |
Installation and Maintenance
- Verify the complete article number: Confirm that the replacement is 6SN1118-0DK23-0AA1, including the final suffix, because related control units can have different configurations.
- Check the axis assignment: Identify the two axes controlled by the existing module and verify that their assignments match the intended replacement.
- Confirm the direct measuring system: Check the installed measuring device and verify that the machine’s feedback arrangement is compatible with this control-unit configuration.
- Inspect encoder compatibility: Confirm that the relevant feedback devices provide the specified sin/cos 1 Vpp signals.
- Verify NC software requirements: Check that the installed NC software meets the version 06.04.09 requirement and supports the intended drive configuration.
- Isolate the drive system: Follow the machine’s electrical safety procedures before removing or installing the control unit.
- Inspect the mounting position: Examine the designated slot, connectors, and mating interfaces for damage, contamination, or loose connections.
- Install the module correctly: Fit the control unit into the appropriate SIMODRIVE assembly position and ensure that the connections are properly seated.
- Check feedback wiring: Inspect the encoder and measuring-system cables for damaged insulation, loose contacts, incorrect assignments, or signs of electrical interference.
- Review drive parameters: Compare the axis assignments, motor data, feedback settings, and control parameters with the machine’s approved configuration.
- Test position feedback: During controlled commissioning, verify that the reported position corresponds to the expected machine movement and investigate discrepancies before production use.
- Document commissioning results: Record the installed article number, software version, measuring-system configuration, parameter changes, and functional test results.
Compatible System Components
| Component | Function |
|---|---|
| SIMODRIVE 611-D Power Module | Supplies electrical power to the associated drive motor |
| CNC Controller | Coordinates machine movements and generates drive commands |
| Compatible Feed Drive Motor | Produces the required movement along an assigned machine axis |
| Main Spindle Drive Components | Support spindle operation where included in the configured system |
| Direct Measuring System | Provides direct mechanical-position feedback |
| Compatible sin/cos 1 Vpp Feedback Devices | Supply the specified measurement signals |
| Encoder and Measuring-System Cables | Carry feedback signals to the relevant interfaces |
| NC Software and Drive Parameters | Establish the control unit’s operating configuration |
Recommended Related Models
| Model | Product Type | Selection Consideration |
|---|---|---|
| Siemens 6SN1118-0DK23-0AA0 | Digital Closed-Loop Plug-In Performance Control Unit | Compare the exact article number and hardware configuration before replacement |
| Siemens 6SN1118-0DK23-0AA2 | SIMODRIVE 611-D Digital High-Performance Control Unit | Check the full configuration and application compatibility before considering an alternative |
| Siemens 6SN1118-0DK21-0AA0 | Digital High Performance Closed-Loop Control Unit | Verify the measuring-system arrangement; the DK21 configuration differs from the DK23 variant |
Key Advantages
- Two-axis digital closed-loop control for compatible SIMODRIVE 611-D systems.
- Support for a direct measuring system within the configured drive architecture.
- Compatibility with the specified sin/cos 1 Vpp feedback interface.
- Integration with CNC feed-drive and main-spindle-drive applications.
- Suitable for maintenance and replacement when the original hardware, software, and measuring-system configuration are verified.
Technical FAQs
What role does the direct measuring system play in the 6SN1118-0DK23-0AA1 configuration?
It allows the configured drive system to use position feedback measured directly from the machine’s moving element. This differs from relying exclusively on motor rotation feedback and must be supported by the machine’s control configuration.
How many drive axes can this control unit handle?
The 6SN1118-0DK23-0AA1 is a two-axis control unit. The actual assignment of feed and spindle functions depends on the machine’s drive architecture and the supported configuration.
Which encoder signal must be considered during replacement?
The specified interface is sin/cos 1 Vpp. Confirm that the feedback devices, wiring, and configured measurement channels match the existing system before commissioning.
What should be checked if the machine reports position errors after installation?
Check the direct measuring-system connections, encoder signals, axis assignments, NC software compatibility, and drive parameters. Also verify that the replacement has the correct article number and that the original feedback configuration has been preserved.