Siemens 6SN1118-0DJ23-0AA2 SIMODRIVE 611D Control Unit
A high-performance one-axis positioning control unit for SIMODRIVE 611D with a direct measuring system.
Product Identification
6SN1118-0DJ23-0AA2 is a Siemens SIMODRIVE 611D control unit for one-axis positioning with a direct measuring system. Siemens product lists identify it as a high-performance 1-axis positioning control.
The final suffix must be retained for exact hardware and revision matching. Verify the 611 rack, measuring-system interface, firmware and machine configuration before replacement.
Engineering Data
| Manufacturer | Siemens |
|---|---|
| Model | 6SN1118-0DJ23-0AA2 |
| Product Family | SIMODRIVE 611 digital |
| Control Function | 1-axis positioning |
| Performance Class | High performance |
| Measuring System | Direct measuring system |
| Hardware Revision | AA2 suffix; verify label and firmware |
| Service Context | SIMODRIVE 611D motion-control maintenance |
Functions
- Provides high-performance one-axis positioning control.
- Supports a direct measuring-system configuration.
- Retains the exact SIMODRIVE 611D order identity for service.
- Integrates with the installed 611 rack and machine control architecture.
Applications
- Industrial automation service
- Installed-system maintenance
- Configuration-controlled spare replacement
Lifecycle
- Keep the complete model label, revision and installation record with the asset file.
- Store the spare in clean, dry protective packaging and preserve connectors and mounting surfaces.
- Review lifecycle or obsolescence status before planning a critical replacement.
FAQ
6SN1118-0DJ23-0AA2: What axis function does this model provide?
It is a high-performance SIMODRIVE 611D control unit for one-axis positioning with a direct measuring system.
6SN1118-0DJ23-0AA2: Why retain the AA2 suffix?
Hardware, firmware and system compatibility depend on the exact order reference.
6SN1118-0DJ23-0AA2: Can it use an indirect encoder instead?
Do not assume so; the listed function is direct measuring-system positioning.
6SN1118-0DJ23-0AA2: What data should be backed up?
Save axis parameters, PLC data, offsets, homing values, diagnostics and firmware.
6SN1118-0DJ23-0AA2: Can a two-axis 611D board replace it?
Only with a documented control architecture and parameter compatibility check.
6SN1118-0DJ23-0AA2: What tests follow replacement?
Verify feedback, homing, position accuracy, diagnostics, interlocks and safety.

