Siemens Digital closed-loop control 6sn1118-0dk23-0aa2
6sn1118-0dk23-0aa2
Siemens
Siemens Digital closed-loop control 6sn1118-0dk23-0aa2
Home > Siemens > SIMODRIVE 611 > 6SN1118-0DK23-0AA2 Need Siemens 6sn1118-0dk23-0aa2? Digital closed-loop control module for SIMODRIVE 611U drive group…
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Specifications
| Brand | Siemens |
|---|---|
| Model Number | 6SN1118-0DK23-0AA2 |
| Official Product Name | SIMODRIVE 611U closed-loop control unit, 2 axes (dual-axis control board) |
| Applicable System | SIMODRIVE 611U drive group with SINUMERIK 810D / 840D CNC systems |
| Product Type | Digital closed-loop control module (control board) |
| Equivalent Standard | SIMODRIVE 611U platform standard; EMC immunity class EN 61000-6-2 per distributor data; confirm certification with supplier |
| Product Status | Discontinued / Legacy (SIMODRIVE 611 platform phased out) |
| Feedback system | sin/cos 1Vpp direct measuring system (encoder interface) |
| Control loops | Digital current, speed and position loops; speed-loop response up to 1 kHz |
| Fieldbus | PROFIBUS DP |
| Commissioning software | SimoCom U |
| NC software requirement | NC software 06.04.09 or higher (per distributor data) |
| Degree of protection | IP20 (install in enclosed control cabinet) |
| Weight | Approx. 0.53 kg (distributor data varies; confirm before ordering) |
| Dimensions | N/A |
| Module type | Closed-loop control unit, 2 axes |
Product Description
Designed as a two-axis control board, it performs fully digital current, speed and position control loops for feed and spindle axes in CNC machine tools. The module uses a sin/cos 1Vpp direct measuring system for high-resolution position feedback and is combined with 611 power modules (6SN1123 series) and infeed modules (6SN1145 / 6SN1146 series) to form a complete drive group, typically supervised by a SINUMERIK 810D or 840D CNC system. Because the SIMODRIVE 611 platform has been discontinued, this control unit is sourced today as a legacy spare part for maintenance and retrofit of installed machines. The Siemens 6SN1118-0DK23-0AA2 is a digital closed-loop control unit from the SIMODRIVE 611U universal drive family.
Basic Product Information
- sin/cos 1Vpp direct measuring system: supports high-resolution encoder feedback including incremental and absolute signals
- Fully digital control loops: current, speed and position loops with speed-loop response up to 1 kHz for high-speed machining
- PROFIBUS DP fieldbus interface for system integration, parameterized with the SimoCom U commissioning tool
- Open-interface configuration: works with 6SN1123 power modules and 6SN1145 / 6SN1146 infeed modules in the 611U drive group
- Dual-axis digital closed-loop control: controls two servo axes in one module for synchronized motion and interpolation
Technical Specifications
Version & Model Difference
The 6SN1118-0DK23-0AA2 is the -0AA2 revision within the 6SN1118-0DK23 group of SIMODRIVE 611U dual-axis closed-loop control units. Earlier revisions (for example -0AA0 and -0AA1) differ in hardware revision and firmware scope; the -0AA2 unit is the latest listed revision and is generally the preferred replacement. Confirm the exact suffix, hardware revision and NC software compatibility before ordering.
Application Scenarios
- CNC lathes, milling machines and grinding machines with multi-axis servo drives
- Machining centers and production lines using SIMODRIVE 611U drive groups
- Retrofit and spare-part replacement of installed SINUMERIK 810D / 840D machine tools
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Frequently Asked Questions
What is the Siemens 6SN1118-0DK23-0AA2 used for?
It is a dual-axis digital closed-loop control unit for SIMODRIVE 611U drive groups, providing current, speed and position control for two servo axes in SINUMERIK 810D / 840D controlled machine tools.
Which power and infeed modules work with this control unit?
It is combined with 6SN1123 series 611 power modules and 6SN1145 / 6SN1146 infeed modules to build a complete drive group, typically under a SINUMERIK 810D or 840D CNC system.
Is the 6SN1118-0DK23-0AA2 still in production?
No. The SIMODRIVE 611 platform has been discontinued and replaced by the SINAMICS S120 family; the unit is available as a legacy spare part through surplus and repair channels.
What feedback signals does the module support?
It uses a sin/cos 1Vpp direct measuring system and supports incremental and absolute encoder signals for high-resolution position feedback.
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