Mitsubishi M80 Servo Drive MDS-EJ-V1-30

MDS-EJ-V1-30 is a Mitsubishi Electric MDS-EJ series servo drive unit used in CNC machine tools.

Description

• Manufacturer: Mitsubishi Electric
• Series: MDS-EJ / EJH Series
• Model: MDS-EJ-V1-30
• Type: 1-axis servo amplifier / servo drive
• Application: CNC lathes, milling machines, machining centers, industrial automation systems

Main Function

This unit is a servo drive (axis controller). It:

• Receives motion commands from the CNC controller
• Drives a servo motor with precise speed, torque, and position control
• Works in closed-loop control using encoder feedback
• Provides fast dynamic response for machining accuracy

Key Specifications (typical)

• Rated current: 30 A class
• Supply voltage: 200–230 VAC (200V class systems)
• Drive type: PWM servo amplifier with dynamic braking
• Cooling: Forced air (cabinet mounted)
• Protection: IP20 (industrial cabinet use)

System Role in CNC

In a Mitsubishi CNC system:

CNC controller → MDS-EJ-V1-30 (servo drive) → Servo motor → Machine axis movement

Key Features

• High-precision motion control
• Fast response for CNC machining cycles
• Built-in braking (dynamic brake function)
• Compact all-in-one drive design (EJ series architecture)
• Used for individual axis control (X, Y, Z, etc.)

Simple Understanding

• CV units (EH / DH CV) = power supply (creates DC bus)
• DH-AL reactors = power input protection/filter
• MDS-EJ-V1-30 = servo drive (controls motor movement)