Overview
Versa Drives’ low-voltage DC compressor controller platform is designed for 3-phase PMSM compressors used in off-grid, mobile, and renewable-energy systems. The platform currently includes validated 12 V and 24 V DC compressor controllers in the 500 W class, and is extensible to 48 V DC for higher-voltage compressor systems.
These controllers are optimised for battery-operated and solar-powered compressor applications, providing sensorless PMSM control, high efficiency, and robust protection features for demanding field conditions.
Key Features
- Low-voltage DC PMSM compressor controllers for 12 V, 24 V and 48 V systems
- Supports 3-phase PMSM compressor motors in the ~500 W power class
- Sensorless PMSM control – no encoder or Hall sensors required
- High drive efficiency (>90%) for battery and solar-powered applications
- Wide operating voltage ranges for 12 V and 24 V battery systems; 48 V variant derived from the same platform
- Simple digital enable control for straightforward integration into compressor systems
- Comprehensive protections: under-voltage, over-voltage, short-circuit, over-temperature, over-current
- Designed with IEC 61800-3 and IEC 61800-5 in mind for industrial environments
- IP44-rated electronics; -10 °C to 50 °C operating temperature and up to 95% non-condensing humidity
- Firmware-configurable soft start, ramp profiles, and protection thresholds for different compressor duties
Applications
- Battery-operated air compressors for remote industrial and service applications
- Solar-powered air compressor systems in off-grid or hybrid solar installations
- Auxiliary compressors in electric vehicles where 12 V, 24 V or 48 V DC is available
- Portable compressor units for tools, tyre inflation, and field maintenance
- Other low-voltage PMSM compressor applications that demand compact, efficient, and robust controllers
Technical Specifications – 12 V Variant
| Parameter | Value |
|---|---|
| Controller rated voltage | 12 V DC |
| Controller operating range | 10–16 V DC |
| Motor type | 3-phase PMSM |
| Shaft power | 500 W |
| Input current | 58 A (application-dependent) |
| Line current | 70 Arms (application-dependent) |
| Position feedback | Sensorless PMSM |
| Drive efficiency | >90% |
| Overload capacity | 110% |
| Digital inputs | 1× digital enable input |
| Protection | Under-voltage, Over-voltage, Short-circuit, Over-temperature, Over-current |
| Certification target | IEC 61800-3, IEC 61800-5 |
| IP rating | IP44 |
| Humidity | Up to 95% RH (non-condensing max.) |
| Operating temperature | -10 °C to 50 °C |
Technical Specifications – 24 V Variant
| Parameter | Value |
|---|---|
| Controller rated voltage | 24 V DC |
| Controller operating range | 20–30 V DC |
| Motor type | 3-phase PMSM |
| Shaft power | 500 W |
| Input current | 28 A (application-dependent) |
| Line current | 34 Arms (application-dependent) |
| Position feedback | Sensorless PMSM |
| Drive efficiency | >90% |
| Overload capacity | 110% |
| Digital inputs | 1× digital enable input |
| Protection | Under-voltage, Over-voltage, Short-circuit, Over-temperature, Over-current |
| Certification target | IEC 61800-3, IEC 61800-5 |
| IP rating | IP44 |
| Humidity | Up to 95% RH (non-condensing max.) |
| Operating temperature | -10 °C to 50 °C |
48 V Variant
The 48 V DC compressor controller variant is derived from the same PMSM controller platform and is intended for similar ~500 W compressor motors in 48 V battery or DC bus systems. Electrical ratings (voltage window, continuous and peak current, and exact power limit) are defined based on the target compressor and application requirements. Like the 12 V and 24 V variants, it uses sensorless PMSM control with >90% drive efficiency and includes under/over-voltage, over-current, short-circuit and over-temperature protections, with IP44 construction and an operating range of -10 °C to 50 °C in non-condensing environments.
Enquiry Note
If you are interested, please share a few lines about your product, motor rating and supply voltage. We will review your requirement, map it to the closest Versa motor–drive platform and get back to you with next steps.
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