Mitsubishi M80 Servo Drive MDS-EJH-V1-10

MDS-EJH-V1-10 is a Mitsubishi Electric servo drive unit from the MDS-EJH series used in CNC machine tools.

Description

• Manufacturer: Mitsubishi Electric
• Series: MDS-EJ / EJH series
• Model: MDS-EJH-V1-10
• Type: 1-axis servo drive (all-in-one compact drive with built-in power section)
• Application: CNC lathes, machining centers, milling machines, industrial automation

Main Function

This unit is a servo amplifier (axis drive) that:

• Receives motion commands from the CNC controller
• Controls a single servo motor axis (position, speed, torque control)
• Uses encoder feedback for closed-loop precision control
• Handles power conversion internally (no separate external converter needed in EJH design)

Key Specifications

• Rated current: 10 A class
• Input supply: 200–240 VAC, 3-phase or single-phase (system dependent)
• Drive type: Integrated servo drive (EJH all-in-one architecture)
• Cooling: Forced air / cabinet cooling
• Protection: IP20 industrial cabinet type

Role in CNC system

CNC controller → MDS-EJH-V1-10 → Servo motor → Machine axis movement

Important clarification

• Not a CV unit (those are separate power supplies like MDS-EH-CV)
• Not a DH-AL reactor (those are AC input filters)
• It is a compact servo drive with integrated power stage

Simple system view

• CV (EH/DH) → DC power supply
• DH-AL → AC input reactor (power conditioning)
• EJH-V1-10 → Servo drive (controls axis motor)