Lenze SMD
The Lenze SMD (Smart Micro Drive) series are compact frequency inverters (Variable Frequency Drives - VFDs) that were designed for standard industrial motor control applications.
Key Features and Specifications
| FeatureDetailSource | ||
| Product Type | Frequency Inverter (VFD) | |
| Control Method | V/f control (linear or quadratic) | |
| Power Range | 0.25 to 22 kW | |
| Input Voltage | Single-phase or three-phase 200/240 V; Three-phase 400/480 V | |
| Output Frequency | 0 to 500 Hz (typically 0-240 Hz in standard applications) | |
| Enclosure | IP20 (IP65 available with through-hole mounting options) | |
| Overload Capacity | 150% of rated current for 60 seconds | |
| I/O | Analog , 3-4 freely programmable digital s, 1 programmable relay output | |
| Communication | RS485 (Modbus RTU) and CAN-BUS options available on specific models | |
| Display | Clearly legible LED display | |
| Programming | Electronic Programming Module (EPM) - a removable memory chip for quick configuration transfer |
Main Advantages
- Ease of Use: Commissioning only requires a few parameters, making setup quick and easy.
- Cost-Effective: It provided a solution that offered many advanced features at a reasonable price point, without excessive, unneeded functions.
- Integrated Protection: Features built-in motor overload protection, short circuit, earth fault, and overvoltage protection, reducing the need for additional hardware.
- Flexible Mounting: Standard IP20 enclosure with options for through-hole mounting to achieve IP65 in the control cabinet, allowing for better thermal management.
Product Status
The Lenze SMD series is now a discontinued/superseded product line. Lenze recommends migrating to newer drives like the i510 protec and i550 protec series for current projects and replacements.
For documentation or support on existing units, you can refer to manuals such as the Lenze SMD Basic Manual or visit the official Lenze website for migration information.