Mitsubishi MR-JN-20A 200W Compact AC Servo Amplifier – MR-JN Series
When a servo drive fails on the production line, everything stops. Precision positioning is lost, throughput collapses, and every minute of downtime translates directly into lost revenue and missed delivery commitments. In high-cycle automation environments — packaging lines, CNC machining centers, conveyor indexing systems — the servo amplifier is the invisible backbone that keeps motion control accurate and repeatable. Without a reliable unit like the Mitsubishi MR-JN-20A, even the most sophisticated mechanical design becomes inoperable.
The Mitsubishi MR-JN-20A is a 200W compact AC servo amplifier from Mitsubishi Electric’s MR-JN Series — an entry-level yet highly capable servo drive platform engineered for space-constrained control panels and cost-sensitive OEM applications. Accepting pulse train and analog voltage command inputs, the MR-JN-20A integrates seamlessly into standard PLC-based motion architectures without requiring a dedicated motion network, making it one of the most widely deployed compact servo drives in global factory automation.
Technical Specifications
- Model: MR-JN-20A
- Series: MR-JN Series (Mitsubishi Electric)
- Rated Output Power: 200 W
- Power Supply Input: Single-phase AC 100–120 V / 200–240 V, 50/60 Hz
- Command Interface: Pulse train input (differential / open-collector); Analog voltage (±10 V speed/torque)
- Control Modes: Position control, Speed control, Torque control
- Encoder Compatibility: Mitsubishi MR-JN compatible servo motors (incremental encoder)
- Regenerative Brake: Built-in regenerative resistor
- Protection Functions: Overcurrent, overvoltage, undervoltage, overheat, encoder error
- Ambient Operating Temperature: 0 °C to 55 °C
- Cooling Method: Natural convection
- Weight: Approx. 0.8 kg
- Compliance: CE, UL (refer to official Mitsubishi Electric datasheet for full certification list)
Key Features & Benefits
- Ultra-Compact Footprint: Slim body design minimizes control panel space, ideal for OEM machine builders with tight enclosure constraints.
- Universal AC Input: Single-phase 100–240 V wide-range input eliminates the need for separate transformers in multi-voltage global deployments.
- Pulse & Analog Command Compatibility: Works directly with virtually any PLC pulse output or analog command signal — no proprietary motion bus required.
- Three Control Modes in One Unit: Seamlessly switch between position, speed, and torque control to match diverse application requirements.
- Built-in Regenerative Resistor: Handles deceleration energy internally for most light-duty applications, reducing external component count.
- Comprehensive Fault Protection: Multi-layer protection circuitry safeguards both the drive and connected servo motor from electrical and thermal faults.
- Easy Parameter Setup: Compatible with Mitsubishi MR Configurator2 software for rapid commissioning and diagnostics.
Industry & Equipment Applications
- Packaging Machinery: Indexing, sealing, and labeling stations requiring precise position control at high cycle rates.
- CNC Machine Tools: Auxiliary axis control for tool changers, rotary tables, and workpiece positioners.
- Conveyor & Material Handling: Speed-controlled belt drives and positioning conveyors in logistics and assembly lines.
- Semiconductor & Electronics Manufacturing: Pick-and-place, dispensing, and inspection equipment demanding sub-millimeter repeatability.
- Textile Machinery: Tension control and feed-roll positioning in weaving and knitting equipment.
- Medical & Laboratory Automation: Low-noise, precise motion for diagnostic and sample-handling equipment.
System Integration & Compatible Parts
The MR-JN-20A is designed to pair with Mitsubishi Electric’s MR-JN compatible servo motors. For complete system integration, the following related components are commonly specified:
- Compatible Servo Motors: Mitsubishi HF-KN series (e.g., HF-KN13, HF-KN23) — confirm motor-amplifier pairing via Mitsubishi Electric selection guide.
- Programming & Commissioning: MR Configurator2 software (SC-MRCGP2E)
- Communication Cable: MR-J3USBCBL3M (USB setup cable)
- Regenerative Option: MR-RB032 external regenerative resistor (for high-inertia or high-cycle applications)
- Upper-Level Controllers: Mitsubishi MELSEC Q/L/iQ-R series PLCs with pulse output modules
Note: Always verify compatibility using the official Mitsubishi Electric product catalog or contact Konmask.com for application engineering support.
Our Quality Assurance Process
At Konmask.com, every MR-JN-20A unit we supply undergoes a structured verification process before shipment:
- Source Verification: Units are sourced from authorized distributors or verified surplus channels with full traceability documentation.
- Visual & Physical Inspection: Enclosure integrity, connector condition, label authenticity, and firmware version checks.
- Functional Testing: Where applicable, units are bench-tested for power-on self-diagnostics and basic communication response.
- Packaging: Anti-static packaging with moisture barrier and shock-absorbing foam for safe international transit.
- Documentation: Certificate of conformity and inspection report available upon request.
How to Order
- Submit an inquiry via the Contact / RFQ form on this page with your required quantity and delivery timeline.
- Our technical team will confirm availability, lead time, and provide a formal quotation within 1 business day.
- Upon order confirmation, we arrange secure packaging and international shipping with full tracking.
- Post-delivery technical support is available via email or WhatsApp for installation and commissioning queries.
Minimum Order Quantity: 1 unit | Lead Time: Subject to stock availability — contact us for current status.
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: Focused exclusively on PLC, servo, DCS, and motion control components — not a generalist marketplace.
- ✅ Global B2B Supply: Serving OEMs, system integrators, and MRO procurement teams across Asia, Europe, and the Americas.
- ✅ Technical Expertise: Our team includes experienced automation engineers who can assist with product selection and system compatibility.
- ✅ Competitive Pricing: Direct sourcing relationships enable competitive pricing on both new and surplus inventory.
- ✅ Responsive Support: Fast quotation turnaround and dedicated after-sales technical assistance.
Frequently Asked Questions
Q: What is the difference between MR-JN-20A and MR-J4-20A?
A: The MR-JN Series is an entry-level, pulse/analog command servo drive without SSCNET III/H network support. The MR-J4 Series is a higher-performance platform with SSCNET III/H synchronous network capability, advanced auto-tuning, and higher dynamic response. Choose MR-JN for standalone or PLC pulse-command applications; choose MR-J4 for multi-axis synchronized motion systems.
Q: Can the MR-JN-20A be used with third-party servo motors?
A: The MR-JN-20A is designed and optimized for use with Mitsubishi Electric MR-JN compatible servo motors. Use with third-party motors is not officially supported and may result in suboptimal performance or fault conditions.
Q: What power supply does the MR-JN-20A require?
A: Single-phase AC 100–120 V or 200–240 V, 50/60 Hz. No three-phase supply is required, making it suitable for standard single-phase industrial and commercial power environments.
Q: Is the MR-JN-20A CE certified?
A: Yes, the MR-JN Series carries CE marking. Please refer to the official Mitsubishi Electric product documentation for the full list of applicable directives and standards.
Q: How do I configure parameters for the MR-JN-20A?
A: Parameters can be set via the front-panel display and push-button interface, or using Mitsubishi’s MR Configurator2 software connected via USB (MR-J3USBCBL3M cable required).
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