Siemens 6SN1123-1AB00-0CA2 SIMODRIVE 611 2-Axis 50A Power Module
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Product Information
The Siemens 6SN1123-1AB00-0CA2 is a 2-axis SIMODRIVE 611 power module (LT module) engineered for high-precision motion control in automated manufacturing lines, robotics, and CNC machine tools. Operating with an input voltage range of 380 V AC to 480 V AC and delivering an output voltage of 0 V DC to 600 V DC, this dual-axis power stage provides up to 50 A peak current to drive two independent servo axes within a single module slot. Designed specifically for Siemens 1FT5 and 1FT6 servo motor series with rated currents of 25 A and 18 A respectively, the unit features an internal heat dissipation cooling design that manages thermal loads through standard enclosure airflow, eliminating the need for custom panel cutouts or external heatsinks.
As an integral part of the modular SIMODRIVE 611 drive architecture, the 6SN1123-1AB00-0CA2 relies on an inserted plug-in control card, such as a Universal or High Performance control card, to hold control logic and parameter settings. Because machine configurations, tuning parameters, and motion profiles reside on the control card rather than on the power module itself, replacing a unit is simple and efficient. Maintenance personnel can isolate incoming power, disconnect motor and bus wiring, swap the existing control card into the replacement power module, and re-energize the assembly without losing programmed setup data. Sourcing a fully tested power module from ABC Industrial Parts ensures straightforward physical substitution and reliable dual-axis power delivery.
System status evaluation and commissioning diagnostics for the 6SN1123-1AB00-0CA2 are handled via the plug-in control card interface using SimoCom U software. While runtime telemetry and axis control functions are managed electronically by the control module, hardware-level failures such as internal switching faults or degraded power output require direct module replacement or repair. First-line troubleshooting should include checking the 380 V AC to 480 V AC line supply, verifying output wiring to connected 1FT5 or 1FT6 motors, and confirming that the control card is securely seated. When internal power component faults occur, replacing the damaged module with a tested spare from ABC Industrial Parts offers the most efficient route back to full operation.
Technical Specifications
| Manufacturer | Siemens |
| Part Number | 6SN1123-1AB00-0CA2 |
| Model / Type | LT Module |
| Component Type | Servo Drive Power Module |
| Product Family | SIMODRIVE 611 |
| Number of Axes | 2 |
| Rated Peak Current | 50 A |
| Rated Current (1FT5 Motors) | 25 A |
| Rated Current (1FT6 Motors) | 18 A |
| Input Voltage | 380-480 V AC |
| Output Voltage | 0-600 V DC |
| Cooling Method | Internal heat dissipation |
| Weight | 6.80 kg |
| Operating Temperature Range | 0 to 45 °C |
Programming and Configuration
The Siemens 6SN1123-1AB00-0CA2 operates strictly as the power execution stage of a SIMODRIVE 611 axis unit, delegating control logic, axis tuning, and parameterization to an inserted plug-in control card. Control modules, including SIMODRIVE 611 Universal and High Performance variants, store motor parameter sets, current limits, control loops, and motion settings.
Software setup and parameter adjustment are performed using SimoCom U commissioning software, which connects directly to the installed control card interface. Because the 6SN1123-1AB00-0CA2 power section contains no non-volatile parameter memory, replacing the hardware power module does not require re-commissioning or uploading parameters, as long as the original plug-in control card is retained and installed onto the spare unit.
Communication and System Integration
Designed for integration into the modular SIMODRIVE 611 drive framework, the 6SN1123-1AB00-0CA2 dual-axis power module receives input power via an upstream infeed supply and supplies regulated 0 to 600 V DC power to connected servo motors. System control signals and fieldbus communications pass through the backplane and plug-in control card inserted into the front slot of the power stage.
The module features output terminals for driving two independent servo motor channels. It is engineered to power Siemens 1FT5 motors up to 25 A rated current and Siemens 1FT6 motors up to 18 A rated current. Operating across an ambient temperature range of 0 °C to 45 °C, its internal cooling architecture simplifies panel integration by dissipating thermal energy directly into the cabinet interior without needing external pass-through heatsinks.
Diagnostics and Status Indication
Diagnostic feedback and state monitoring for the 6SN1123-1AB00-0CA2 power module are accessed via the plugged-in SIMODRIVE 611 control card. System operators and service technicians use SimoCom U commissioning software to read live operating status, monitor current output, and diagnose drive faults.
Basic checks during maintenance include verifying that incoming AC input voltage remains within the 380 V AC to 480 V AC operating range, confirming intact motor power cables on both output channels, and ensuring adequate cabinet ventilation to maintain temperatures within the 0 °C to 45 °C specification.
Replacement and Spare Part Considerations
When selecting a replacement for a Siemens 6SN1123-1AB00-0CA2 power module, verify that the 50 A peak current rating, 2-axis configuration, and internal cooling design match the original unit specifications. This unit is built for direct panel mounting using standard cabinet airflow.
To complete a module swap, disconnect power from the SIMODRIVE 611 rack, remove motor connections and DC bus links from the defective unit, and detach the plug-in control card. Reinstall the control card into the replacement 6SN1123-1AB00-0CA2 module and reconnect all cabling. Transferring the control card preserves all programmed application data and motor parameters.
Frequently Asked Questions
Which servo motor series are compatible with the Siemens 6SN1123-1AB00-0CA2?
The module is designed to drive Siemens 1FT5 servo motors (rated at 25 A) and Siemens 1FT6 servo motors (rated at 18 A) in dual-axis configurations.
Do I need to reprogram the drive when replacing a 6SN1123-1AB00-0CA2 power module?
No. Drive parameters and control logic are stored on the plug-in SIMODRIVE 611 control card. Transferring your existing control card to the replacement power module retains all stored parameters.
What software is used for commissioning and diagnostics with this module?
Diagnostics and parameter management are performed using SimoCom U commissioning software connected via the plugged-in SIMODRIVE 611 control card interface.
What are the input and output voltage specifications for the 6SN1123-1AB00-0CA2?
The module operates with an input voltage of 380 to 480 V AC and delivers an adjustable output voltage range of 0 to 600 V DC with a 50 A peak current rating.
Does the 6SN1123-1AB00-0CA2 require external heatsink panel cutouts?
No. The module utilizes internal heat dissipation, managing thermal losses via standard enclosure airflow without requiring cutouts for external heatsinks.
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Disclaimer:
We are not an authorised distributor of Siemens.
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