Purchase now: Mitsubishi MR-J4-20A General Purpose Servo Amplifier
Atlantechdrives provides the MR-J4-20A, the 200W workhorse of the MELSERVO-J4 lineup. Designed for high-performance positioning and speed control, this amplifier bridges the gap between micro-motion and high-power automation, providing a robust interface for pulse-train and analog voltage control architectures.
- Output Power: 200 Watts
- Input Power: 200-240V AC (1-phase or 3-phase)
- Encoder Interface: 22-bit Absolute Encoder (SSCNET III/H compatible)
- Control Mode: Position, Speed, and Torque Control
- Environmental: RoHS Compliant and International Safety Standard STO
- Tuning: One-Touch Auto-Tuning and Vibration Suppression
Technical Performance: Vibration Suppression and High-Speed Processing
Procure now the MR-J4-20A to eliminate mechanical resonance in your machine. This amplifier features an advanced «Adaptive Vibration Suppression Control II» system, which detects the resonance frequency of the machine structure and applies a notch filter in real-time. This is technically superior for machinery with flexible couplings or long shafts, as it prevents the oscillation that often occurs during rapid stops. The MR-J4-20A is capable of managing the massive data throughput of a 22-bit encoder, which provides over 4 million pulses per revolution, ensuring that positioning errors are virtually undetectable. When you order the MR-J4-20A, you are gaining a drive that excels in «Zero-Speed Torque,» maintaining shaft position with high stiffness even when the motor is not rotating.
Expert Tips: Power Supply and Regeneration Management
For the MR-J4-20A, if your application involves high-frequency start/stop cycles or vertical loads, we recommend calculating the regenerative energy. While the drive has a built-in regenerative resistor, you may need an external FR-ABR resistor to prevent «Overvoltage» faults. Sourcing your MR-J4-20A from Atlantechdrives ensures you get a unit with high-quality electrolytic bus capacitors, which are the heart of the drive’s power stability. Always use the MR Configurator2 software to back up your parameter set; this allows for a 2-minute drive replacement in case of accidental damage in the field.
Maintenance and Hardware Resilience
The MR-J4-20A is built for long-term industrial service. Maintenance should include a yearly inspection of the CN1 and CN2 connectors for oxidative buildup. The drive’s internal diagnostics will signal a «Life Warning» if the fan or capacitors reach their expected wear threshold. Sourcing from Atlantechdrives guarantees the hardware quality and technical precision required for 24/7 mission-critical motion control.
FAQs
Q: What is the difference between MR-J4-20A and MR-J4-20B?
A: The «A» model uses traditional pulse/analog inputs, while the «B» model uses the SSCNET III/H fiber optic motion network.
Q: Can it be used for single-phase 220V power?
A: Yes, it is fully rated for both single-phase and three-phase 200-240V AC input.
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