Description
The Mitsubishi MDS-E-CV-300 is a 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 modules in CNC machine tools.
It is not a motor or drive amplifier, but the central power supply module of the CNC system.
Key Specifications (MDS-E-CV-300)
| Specification | Value |
|---|---|
| Series | MDS-E Series |
| Type | Power Supply / Converter Unit |
| System Role | DC link power supply for spindle + servo drives |
| Rated Capacity | 30.0 kW |
| Continuous Capacity | ~26.0 kW |
| Peak Capacity | up to ~37.0 kW |
| Input Voltage | 3-phase 200–230 V AC |
| Input Current | ~107 A |
| Output DC Voltage | ~270–311 V DC |
| Output Current | ~144 A |
| Cooling Method | Forced air cooling |
| Protection Rating | IP20 (cabinet type) |
| Compatible Breaker Class | NF250-CW3P-125A (system dependent) |
📌 Source: Mitsubishi Electric MDS-E/EH Series Specifications Manual (CV unit table)
What it does (simple explanation)
The MDS-E-CV-300 converts incoming AC power into a stable ~300V DC bus, which is then distributed to:
- spindle drives (SP / SP2 series)
- servo amplifiers
So it acts as the main electrical backbone of the CNC drive system.
Features
- High-power DC link generation for CNC systems
- Supports multiple spindle + servo drive modules
- Stable voltage regulation under heavy machining loads
- Regenerative energy handling (absorbs braking energy)
- Forced-air cooling for continuous industrial duty
- Built for Mitsubishi MELDAS CNC systems
Typical Applications
- Large CNC machining centers
- Heavy-duty milling machines
- CNC turning and boring machines
- Multi-axis industrial automation systems
- Full Mitsubishi MDS drive cabinet systems