Mitsubishi M80 Power Supply MDS-EH-CV-550

MDS-EH-CV-550 is a Mitsubishi Electric MDS-EH series AC converter / power supply unit designed for high-power CNC servo and spindle drive systems used in industrial machine tools.

Description

• Manufacturer: Mitsubishi Electric
• Series: MDS-EH Series
• Model: MDS-EH-CV-550
• Type: AC Converter / Servo-Spindle Power Supply Unit
• Application: CNC machining centers, heavy-duty lathes, milling machines, automated industrial systems
• Voltage Class: 400V class

Main Functions

• Converts 3-phase AC input into high-voltage DC bus power
• Supplies DC power to Mitsubishi servo and spindle amplifier modules
• Supports regenerative braking systems
• Designed for MELDAS CNC drive systems
• Provides stable high-power operation for multi-axis CNC equipment

Typical Specifications

• Power Capacity: 55 kW class
• Input Voltage (3-phase): 380–440 VAC
• Input Current: Approx. 130 A
• Output Voltage: DC 540–680 V
• Cooling Method: Natural convection / industrial cooling design
• Protection Class: IP20
• Operating Temperature: 0–50°C

Common Connections

• R/L1, S/L2, T/L3 → 3-phase AC input
• L+ / L− (TE2) → DC converter output
• TE3 → Control power input
• CN4 / CN9 → Servo/spindle communication connectors
• CN24 → Emergency stop input
• PE → Grounding terminal

Features

• High-capacity CNC power conversion
• Stable DC bus output for servo/spindle amplifiers
• Compact cabinet-mount design
• High reliability for continuous industrial duty
• Compatible with Mitsubishi MDS-EH spindle and servo systems

Related Models

• MDS-EH-CV-370
• MDS-EH-CV-450
• MDS-EH-CV-750
• Later replacement variants include MDS-DH and MDS-DH2 series