Description
The Siemens SINAMICS G120C PN is a compact variable frequency drive (VFD) for controlling the speed and operation of compatible three-phase AC motors. Model 6SL3210-1KE21-3AF1 combines motor-control functions, PROFINET communication and built-in protection features in a space-saving drive unit.
It is designed for industrial applications that need adjustable motor speed, integration with automation systems and coordinated motor control.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Siemens |
| Product Family | SINAMICS G120C |
| Model / Order Number | 6SL3210-1KE21-3AF1 |
| Drive Type | Compact Variable Frequency Drive (VFD) |
| Input Supply | Three-Phase, 380–480V AC, +10% / −20% |
| Input Frequency | 47–63 Hz |
| Rated Power (Low Overload – LO) | 5.5 kW |
| Rated Power (High Overload – HO) | 4.0 kW |
| Rated Output Current (LO) | 12.5A |
| Rated Output Current (HO) | 8.8A |
| Fieldbus Communication | PROFINET |
| Integrated EMC Filter | Class A |
| Safety Function | Integrated Safe Torque Off (STO) |
| Protection Rating | IP20 / UL Open Type |
| External Supply | 24V DC for the Specified I/O Interface |
Key Features and Benefits
Adjustable Motor Speed
The drive controls motor operation by adjusting output frequency and voltage according to the selected control method and application requirements.
PROFINET Communication
PROFINET connectivity supports integration with compatible industrial automation and control systems.
Integrated Safe Torque Off
The built-in STO function supports safety-related designs when implemented with the required safety circuitry and procedures. STO is not electrical isolation and does not replace lockout procedures.
Integrated Class A Filter
The built-in Class A filter supports electromagnetic compatibility requirements when installed according to Siemens’ instructions and applicable regulations.
Multiple Motor-Control Methods
The G120C supports V/f control and sensorless vector control, allowing configuration for suitable motor and load requirements.
Typical Applications
Depending on motor ratings and system design, the Siemens SINAMICS G120C PN may be used in:
– Conveyor systems
– Pumps and fans
– Packaging machinery
– Material-handling equipment
– Industrial production lines
– General-purpose machine automation
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