Description
MDS-EJH-V1-15 is a Mitsubishi Electric all-in-one CNC servo drive unit from the MDS-EJH series, used in MELDAS CNC machine systems.
Description
- Manufacturer: Mitsubishi Electric
- Series: MDS-EJH / EJH series
- Model: MDS-EJH-V1-15
- Type: 1-axis servo drive (all-in-one compact amplifier)
- Application: CNC lathes, milling machines, machining centers
Main Function
This unit is a servo axis amplifier that:
- Receives motion commands from the CNC controller
- Controls a single servo motor (position, speed, torque control)
- Uses encoder feedback for closed-loop accuracy
- Has built-in power conversion (EJH = integrated drive concept)
Key Specifications
- Rated current: 15 A class
- Input supply: 380–480 VAC, 3-phase (400V class system)
- Output: 3-phase variable frequency drive up to ~360 Hz
- Power level: ~1 kW class depending on machine configuration
- Cooling: Natural air / cabinet cooling
- Protection: IP20 for cabinet installation
Role in CNC system
CNC controller → MDS-EJH-V1-15 → Servo motor → Machine axis movement
Important clarification
- Not a CV unit (those are power supply modules like MDS-EH-CV)
- Not a DH-AL reactor (those are input line filters)
- It is a servo drive (axis amplifier) controlling motion directly
Simple system view
- CV (EH/DH CV) → DC power supply
- DH-AL → AC input reactor (power conditioning)
- EJH-V1-15 → Servo drive (controls one CNC axis)