Description
The Mitsubishi MDS-E-CV-550 is a very high-capacity CNC converter / power supply unit from Mitsubishi Electric’s MDS-E series, used as the main DC bus power source for spindle and servo drive systems in large CNC machine tools.
It is not a motor or spindle drive, but the central power supply module of the CNC drive cabinet.
Key Specifications (MDS-E-CV-550)
| Specification | Value |
|---|---|
| Series | MDS-E Series |
| Type | Power Supply / Converter Unit |
| System Role | DC link supply for spindle + servo drives |
| Rated Power Capacity | 55 kW class |
| Input Voltage | 3-phase 200–230 V AC |
| Input Current | ~130 A |
| Output DC Voltage | ~540–680 V DC |
| Output Current | ~106 A |
| Cooling Method | Forced air cooling |
| Protection Rating | IP20 (cabinet type) |
| System Compatibility | MDS-E spindle (SP/SP2) + servo drive systems |
| Weight | ~22–23 kg |
📌 Source: Industrial CNC drive listings and MDS-D/E power supply documentation confirm the CV-550 class as a 55 kW DC power supply unit used in Mitsubishi MELDAS systems with ~540–680 V DC bus output.
What it does (simple explanation)
The MDS-E-CV-550 converts incoming AC power into a stable high-voltage DC bus (≈540–680 V DC), which is then supplied to:
- spindle drives (SP / SP2 series)
- servo amplifiers
So it functions as the main electrical backbone of large CNC drive systems.
Features
- High-power DC link generation for CNC systems
- Supplies multiple high-capacity spindle + servo modules
- Stable voltage regulation under heavy machining loads
- Handles regenerative energy from braking operations
- Forced-air cooling for continuous industrial operation
- Built for Mitsubishi MELDAS CNC architectures
Typical Applications
- Large CNC machining centers
- Heavy-duty milling and boring machines
- CNC turning centers for large workpieces
- Multi-axis industrial automation systems
- High-power CNC production lines