MR-J4W2-44B Dual‑Axis AC Servo Amplifier by Mitsubishi

Key Technical Specifications

• Brand: Mitsubishi / Model: MR-J4W2-44B
• Product Type: Digital AC-Servo Amplifier (0.4 kW)
• Number of Axes: 2 axes – saves panel space
• Power Supply: 1-phase or 3-phase 200-240 VAC
• Safety Function: STO (IEC/EN 61800-5-2)
• Dynamic Brake: Built-in for emergency stop
• Command Interface: SSCNETIII/H – high‑speed motion network
• Weight: 3.00 lbs (1.36 kg) – lightweight design

Frequently Asked Questions (FAQ)

• Q: Can the MR-J4W2-44B run two different motors at once?
  A: Yes, it independently controls two servo motors for multi‑axis applications.
• Q: Does it require an external dynamic brake?
  A: No, the brake is built‑in – no extra components needed.
• Q: What cable does the SSCNETIII/H interface use?
  A: Use Mitsubishi dedicated SSCNETIII/H fiber optic cable.
• Q: Is the STO function SIL2 or SIL3 certified?
  A: The STO meets SIL2 (IEC 61508) and PL d (ISO 13849-1).
• Q: Can I use single‑phase power on both axes?
  A: Yes, the drive accepts 1-phase 200-240 VAC for full 0.4 kW output.

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