Siemens 6SL3210-1KE23-2UB1 SINAMICS G120C Compact Converter
An unfiltered compact converter with integrated USS/Modbus RTU communication and Safe Torque Off.
Technical Summary
6SL3210-1KE23-2UB1 is a larger-frame SINAMICS G120C converter for three-phase motor control. It integrates the power stage, control I/O, safety function and serial fieldbus in one enclosure.
Its USS/Modbus RTU communication and unfiltered construction distinguish it from visually similar PROFINET and filtered versions.
Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SL3210-1KE23-2UB1 |
| Product Family | SINAMICS G120C |
| Line Supply | Three-phase 380–480 V AC, +10% / −20% |
| Line Frequency | 47–63 Hz |
| Low-Overload Power | 15 kW |
| High-Overload Power | 11 kW |
| Filter | Unfiltered |
| Fieldbus | USS / Modbus RTU |
| Control I/O | 6 DI, 2 DO, 1 AI, 1 AO and motor-temperature input |
| Safety Function | Safe Torque Off |
| Protection | IP20 / UL open type |
| Frame Size | FSC |
| Product Status | Active |
Features
- Integrated drive and control hardware supports compact serial-networked cabinet designs.
- Configurable motor-control modes allow the commissioning engineer to match common industrial loads.
- Onboard digital and analog points can handle local commands and process signals.
- Diagnostic and parameter access support planned maintenance through the G120C toolchain.
Compatibility
- Use with a controller or supervisory device that supports the configured USS or Modbus RTU interface.
- Provide the external EMC measures required by the unfiltered drive and the site installation category.
- Select motor, line protection, cabling and braking components from the applicable Siemens engineering data.
Replacement
- Preserve the serial address, baud rate, protocol settings and controller register mapping.
- Check the complete order code before substituting another FSC converter because communication and filter variants differ.
- After loading the validated parameters, test local I/O, serial control, motor behavior and safe-torque-off operation.
FAQ
Can 6SL3210-1KE23-2UB1 connect directly to a PROFINET controller?
Not through its integrated fieldbus; the controller architecture must support the documented serial interface or use an engineered gateway.
What EMC work is required when selecting 6SL3210-1KE23-2UB1?
Review the unfiltered construction against the site emission limits and choose approved line-side filtering and shield practices where required.
Which serial settings should be saved before replacing 6SL3210-1KE23-2UB1?
Record protocol, node address, baud rate, parity, control words, register mapping and timeout behavior.
Can a different G120C power rating use the 6SL3210-1KE23-2UB1 parameter file unchanged?
No. Motor, current, thermal, protection and control data must be checked against the exact converter and load.
What should accompany a 6SL3210-1KE23-2UB1 quotation request?
Provide the nameplate, motor data, serial-network details, EMC arrangement, braking hardware and cabinet environment.
What commissioning checks are important for 6SL3210-1KE23-2UB1?
Validate motor direction, load response, serial communications, local I/O, fault handling and the machine safety circuit.
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