Mitsubishi MR-J2S-60B MELSERVO J2S 600W SSCNET III/H Servo Amplifier

The Mitsubishi Electric MELSERVO J2‑Super series MR‑J2S‑60B is a high‑performance AC servo amplifier for motion control in industrial automation systems. Rated output 600 W (0.6 kW) at 200‑230 V AC, single‑phase or three‑phase input. Built‑in SSCNET III/H high‑speed fiber‑optic communication interface for multi‑axis synchronisation with Mitsubishi motion controllers. Supports position, speed, and torque control modes with 17‑bit absolute encoder feedback (131,072 pulses/revolution). This product is discontinued and available as a spare part for maintaining existing MELSERVO J2S‑based systems.

Applications:

• Multi‑axis motion control in automated assembly lines and pick‑and‑place robotics

• CNC machine tools and high‑speed positioning equipment

• Semiconductor manufacturing and precision electronics assembly

• Packaging machinery, labeling equipment, and material handling systems

Core Specifications:

• Rated output power: 600 W (0.6 kW)

• Rated output current: 3.6 A

• Supply voltage: 200‑230 V AC, 50/60 Hz (single‑phase or three‑phase input)

• Control interface: SSCNET III/H (high‑speed fiber‑optic communication)

• Control modes: Position, speed, torque control

• Encoder feedback: 17‑bit absolute/incremental encoder (131,072 pulses/revolution)

• Speed loop frequency response: ≥550 Hz

• Built‑in dynamic brake: Yes

• Built‑in regenerative resistor: Yes

• Cooling method: Natural cooling (fanless)

• Enclosure rating: IP20

• Dimensions (W × H × D): 70 mm × 168 mm × 190 mm

• Weight: approx. 2.0 kg

• Ambient operating temperature: 0 °C … 55 °C

Advanced Specifications:

• Position control:

  • Maximum input pulse frequency: 500 kpps (differential line driver), 200 kpps (open‑collector)

  • Electronic gear: A/B multiplication (A = 1‑65535, B = 1‑65535, 1/50 < A/B < 500)

  • Positioning complete width: 0 to ±10,000 pulses (command pulse unit)

• Speed control:

  • Speed control range: 1:2000 (analog speed command), 1:5000 (internal speed command)

  • Analog speed command input: 0 to ±10 V DC / rated speed

• Torque control:

  • Analog torque command input: 0 to ±8 V DC

• Protection functions:
  Overcurrent shut‑off, regenerative overvoltage shut‑off, overload shut‑off (electronic thermal), servo motor overheat protection, encoder fault protection, undervoltage protection, overspeed protection, excessive error protection

• Digital I/O:

  • Digital inputs: 9 (24 V DC)

  • Digital outputs: 3 (relay contacts)

Motor Compatibility:

• Compatible with Mitsubishi HC‑SFS series (medium‑inertia) and HC‑LFS series (low‑inertia) servo motors

• Compatible motors: HC‑SFS52, HC‑SFS53, HC‑LFS52

System Integration:

• This servo amplifier belongs to the Mitsubishi Electric MELSERVO J2‑Super series.

• SSCNET III/H high‑speed fiber‑optic communication enables multi‑axis synchronization with Mitsubishi motion controllers (Q17, Q170, Q172 series).

• For detailed wiring, connector pinout, and parameter setting, refer to the MR‑J2S‑B Instruction Manual.

Standards & Compliance:
Refer to manufacturer official documentation for detailed certification and compliance information.

Related Products:

• HC‑SFS52 – 600 W medium‑inertia servo motor with 17‑bit absolute encoder

• MR‑J3ENCBL2M‑A1 – Encoder cable, 2 m (standard bending life)

• MR‑PWS1CBL2M‑A1 – Power cable, 2 m

• MR‑BAT6V1SET – Battery for absolute encoder