MR-J4-200B Mitsubishi MELSERVO-J4 2kW Servo Drive SSCNET III/H Amplifier

MR-J4-200B Mitsubishi MELSERVO-J4 Series 2kW Servo Amplifier

Powerful servo amplifier for demanding motor control. 2kW output, 170V AC (3-phase), 11A. Uses SSCNET III/H for fast communication. Built-in dynamic brake and energy-efficient design.

Product Description

• General purpose servo amplifier for Mitsubishi motors
  • Voltage class: 200V
  • Rated output: 2kW
  • Rated output voltage: 170V AC (3-phase)
  • Rated output current: 11A
• Control method
  • Sine-wave PWM control
  • Current control for smooth motion
• Communication
  • SSCNET III/H interface
  • Three cycles: 0.222 ms, 0.444 ms, 0.888 ms
  • USB port for PC connection
• Built-in features
  • Dynamic brake for safety
  • Regenerative resistor: 100W
  • Inverse efficiency: 85%
  • Close mounting option supported
• I/O and monitoring
  • 2 analog monitoring channels
  • 3 analog input points (+/-10V)
  • 1 digital input, 2 digital outputs
• Protection rating: IP20, force-cooled open structure
• Weight: 2.18 kg (4.81 lbs)

Technical Specifications

• General
  • Manufacturer: Mitsubishi
  • Product Line: MELSERVO MR-J4
  • Part Number: MR-J4-200B
  • Type: Servo amplifier
  • Weight: 2.18 kg (4.81 lbs)
• Power ratings
  • Main circuit input: 3-phase 200-240V AC, 10.5A
  • Control circuit input: 1-phase 200-240V AC, 0.2A
  • Power consumption: 30W
  • Interface supply: 24V DC
• Output ratings
  • Rated output voltage: 3-phase 170V AC
  • Rated output current: 11A
  • Rated output: 2kW
• Communication
  • Interface: SSCNET III/H
• Efficiency and cooling
  • Inverse efficiency: 85%
  • Cooling: Force-cooled, open structure
  • Protection rating: IP20

Expert Review

• “The MR-J4-200B delivers excellent torque stability. The SSCNET III/H cycles reduce lag. Perfect for high-speed pick-and-place. Easy USB setup saves time.” – Senior Motion Control Specialist

Manager’s Insight

• “Upgrade to MR-J4-200B for better energy use. The 85% efficiency cuts power costs. Close mounting saves cabinet space. A smart choice for factory automation.” – Product Manager, PowergearX

Suitable Devices & Applications

• Compatible motors
  • Mitsubishi HG series servo motors (up to 2kW)
  • MELSERVO J4 series motors
• Typical applications
  • CNC machines, robotic arms, conveyors
  • Packaging machines, textile equipment
  • Printing presses, assembly lines
• Best for
  • High-speed positioning, torque control, speed regulation

Shipping & Warranty

• Warranty: 12 months from delivery (covers defects)
• Dispatch: 12-24 hours after order confirmation
• Shipping carriers: FedEx, UPS, DHL
• Tracking number provided same day

Frequently Asked Questions (FAQ)

• Q1: What is the difference between MR-J4-200B and MR-J4-200A?
  • A: MR-J4-200B supports SSCNET III/H network. MR-J4-200A uses pulse train input. Choose B for networked systems, A for standalone.
• Q2: Can I mount several units close together?
  • A: Yes, MR-J4-200B allows close mounting. Keep ambient temperature below 45°C for multiple units.
• Q3 (Experience-based): Why does my amplifier show alarm AL. 16?
  • A: Overcurrent. Check motor wiring and cable insulation. Reduce load or increase acceleration time.
• Q4 (Buying guide): What warranty and shipping do you offer?
  • A: 12-month warranty. Ship within 12-24 hours via FedEx, UPS, or DHL. Worldwide tracking included.
• Q5: How do I connect this amplifier to a PC?
  • A: Use the built-in USB port. Download MR Configurator2 software free from Mitsubishi.