Description
SIEMENS 6SN1123-1AB00-0CA1 – SIMODRIVE 611 1‑Axis Power Module for Servo/Motion Control Racks
The SIEMENS 6SN1123-1AB00-0CA1 is a SIMODRIVE 611 1‑axis power module used in machine tools and high-performance automation lines. It sits in the 611 rack and drives a single servo axis with stable torque control and quick current response. From my experience, this variant “-1AB00” typically aligns with the 50 A output class in many 611 configurations, making it a solid match for medium-to-heavy feed axes on milling, grinding, or packaging machines. You might notice that it’s designed to work with a separate infeed module (e.g., 6SN1145 series) and a 611 control board (such as 6SN1118), so it drops into existing 611 cabinets without drama.
One thing I appreciate is how forgiving these modules are in brownfield upgrades—if your plant runs legacy PROFIBUS-based motion with SIMODRIVE 611D control units, this slot-in approach keeps downtime short. In many cases, users swap a tired power module, reuse the control hardware and feedback cabling, and the line is back by the next shift.
Order Placement Process and Guarantees
- Warranty: 365 days
- Delivery: 1 week if in stock; no more than one month at the latest
- Payment: 50% advance payment; full payment prior to delivery
- Express: FedEx, UPS, DHL
Key Features
- 1‑Axis SIMODRIVE 611 Power Stage – Drives one servo motor with smooth current control for precise positioning and speed loops.
- Output Class (typical): ~50 A – The “-1AB00” variant is commonly used where a stronger single-axis power stage is needed.
- Works with Separate Infeed Units – Uses a common DC link supplied by 6SN1145 infeed/regenerative modules, making multi‑axis racks efficient.
- Compatible with 611 Control Units – Typically paired with 6SN1118 control boards (analog or PROFIBUS via 611D), simplifying retrofit work.
- Cabinet-Friendly Layout – Booksize module format for dense mounting; rear heat-sink interface supports forced-air cooling channels.
- Industrial Reliability – Known to run for years in harsh shop-floor conditions when ventilation and dust control are done right.
Technical Specifications
| Brand / Model | SIEMENS SIMODRIVE 611 – 6SN1123-1AB00-0CA1 |
| HS Code | 850440 (Static converters, incl. AC drives/servo drives) |
| Power Requirements | 3‑phase AC, typically 380–480 V, 50/60 Hz via common DC link (supplied by separate infeed module) |
| Output (Axis) | 1 axis power module; “-1AB00” commonly used for ~50 A class applications (motor selection dependent) |
| Dimensions & Weight | Booksize SIMODRIVE 611 format; typically mid-height module; weight commonly in the 3–5 kg range |
| Operating Temperature | 0 to +45 °C (cabinet-rated; derating may apply above 40 °C without enhanced cooling) |
| Signal I/O Types | Motor phases U/V/W, DC link busbars, brake control connection; feedback and command I/O via the associated 611 control unit |
| Communication Interfaces | Provided by the 611 control board (e.g., PROFIBUS DP on 611D; analog +/-10 V on analog control variants) |
| Installation Method | Rack/cabinet mounting into SIMODRIVE 611 system, with rear heat-sink interface and forced-air cooling path |
Related or Supporting Products
- 6SN1123-1AA00-0CA1 – 1‑axis power module, typically the ~25 A class. Useful for lighter feed axes.
- 6SN1123-1AC00-0CA1 – 1‑axis power module, commonly a higher current class than -1AB00 for heavier duty axes.
- 6SN1145-1BA01-0BA0 – SIMODRIVE 611 infeed/regenerative module supplying the DC link shared by the power modules.
- 6SN1118-1NH01-0AA1 – SIMODRIVE 611D control unit (PROFIBUS). Enables fieldbus motion and encoder handling.
- 6FX2001-5xx.. – Motor/encoder cables for SIMODRIVE 611 systems; choose lengths per cabinet-to-motor distance.
A maintenance manager told us they replaced a -1AB00 in a 4‑axis milling line, kept the existing 611D control and PROFIBUS settings, and only retuned current loop parameters. The spindle was back within a few hours, which seems to be typical when the wiring and cooling channel are in good shape.
Installation & Maintenance
- Cabinet Requirements – Mount in a SIMODRIVE 611 rack with a rear heat-sink channel. Provide clean, forced-air ventilation; avoid dust buildup around cooling fins.
- Power & DC Link – Use the specified infeed (e.g., 6SN1145 series). Verify DC link polarity and busbar torque specs; isolate mains before servicing.
- Wiring Practices – Shield motor cables; bond PE/ground with low impedance. Keep encoder and signal cables separated from power to reduce noise.
- Safety – Lockout/tagout before handling. Discharge time on the DC link can be several minutes; confirm DC link voltage is safe before contact.
- Commissioning – Parameterization is done via the 611 control unit (611D/analog). Perform motor identification and current loop checks after replacement.
- Routine Care – Quarterly dust cleaning, fan and airflow check, terminal re-torque. Firmware/parameter backups on the control unit help speed recovery.
- Spares Strategy – In many cases, keeping one spare -1AB00 and one infeed module covers the most common unplanned stops on 611 racks.
Quality & Certifications
- Certifications: Typically CE marked; many units are UL/cUL recognized. Manufacturer operates under ISO 9001 quality systems.
- RoHS: Legacy 611 modules may fall under service-spare exemptions depending on region; we supply compliant or service-exempt stock accordingly.
- Warranty: 365-day warranty as standard on supply.
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