Mitsubishi M80 Servo Drive MDS-EJ-V1-80

MDS-EJ-V1-80 is a Mitsubishi Electric CNC servo drive (axis amplifier) from the MDS-EJ series, used in MELDAS CNC machine tool systems.

Description

• Manufacturer: Mitsubishi Electric
• Series: MDS-EJ / EJH
• Model: MDS-EJ-V1-80
• Type: Servo amplifier / 1-axis drive unit
• Application: CNC lathes, machining centers, milling machines, industrial automation

Main Function

This unit is a high-current servo drive that:

• Receives motion commands from CNC controller
• Drives a servo motor (position, speed, and torque control)
• Works in closed-loop with encoder feedback
• Controls one machine axis (X/Y/Z or auxiliary axis)

Key Specifications

• Rated current: 80 A class
• Supply voltage: 200–230 VAC (200V class CNC system)
• Drive type: AC servo amplifier with built-in control and protection functions
• Cooling: Forced air (cabinet mounted)
• Protection: Industrial IP20 enclosure

System Role in CNC

CNC controller → MDS-EJ-V1-80 (servo drive) → Servo motor → Machine axis movement

Important clarification

• Not a CV unit (those are power supply converters like MDS-EH-CV)
• Not a DH-AL reactor (those are input filters)
• It is the actual high-power axis motor driver

Simple breakdown of Mitsubishi CNC architecture

• • MDS-EH / DH CV → DC power supply unit
  • DH-AL → AC input reactor (power conditioning)
  • MDS-EJ-V1-80 → Servo drive (controls motor motion)