Industrial Motion Control Solution – Mitsubishi MR-J2S-350A | MELSERVO-J2-Super Series
Where This Product Is Used
The Mitsubishi MR-J2S-350A is a high-performance AC servo drive amplifier deployed across demanding industrial motion control environments. Typical application scenarios include:
- CNC Machine Tools – Precision axis control for milling, turning, and grinding machines requiring tight positioning accuracy and dynamic response.
- Industrial Robots & Manipulators – Joint actuation in 6-axis articulated robots and SCARA systems where torque ripple and settling time are critical.
- Automated Assembly Lines – High-speed pick-and-place, press-fit, and torque-controlled fastening stations in automotive and electronics manufacturing.
- Packaging Machinery – Servo-driven film feed, cut-and-seal, and carton erection systems demanding synchronised multi-axis coordination.
- Semiconductor & FPD Equipment – Wafer handling stages and gantry systems where sub-micron repeatability is non-negotiable.
- Printing & Converting Machines – Register control and tension management in web-fed offset and flexographic presses.
- Material Handling & Conveyors – Indexing tables, rotary transfer units, and overhead gantry cranes requiring smooth velocity profiles.
Technical Specifications
| Model | MR-J2S-350A |
| Series | MELSERVO-J2-Super (MR-J2S) |
| Manufacturer | Mitsubishi Electric Corporation |
| Rated Output Power | 3.5 kW |
| Input Voltage | 3-phase / Single-phase 200–230 V AC, 50/60 Hz |
| Control Method | Sinusoidal PWM current control |
| Encoder Interface | Incremental encoder (2,500 p/rev standard) / Absolute encoder compatible |
| Control Modes | Position, Speed, Torque (switchable) |
| Max Speed | 4,500 rpm (motor dependent) |
| Communication | RS-422 (MR Configurator compatible) |
| Regenerative Option | External regenerative resistor compatible (MR-RB series) |
| Protection Class | IP20 |
| Cooling | Forced air cooling (built-in fan) |
| Weight | Approx. 4.46 kg |
| Compatible Motors | HC-SFS352, HC-RFS353, HA-LFS series (3.5 kW class) |
| Country of Origin | Japan |
Why Engineers Specify This Model
- Proven MELSERVO-J2-Super Platform – Widely adopted across Asia-Pacific and globally; extensive field history in harsh industrial environments ensures long MTBF and predictable maintenance cycles.
- Auto-Tuning & Vibration Suppression – Real-time adaptive gain tuning and machine resonance suppression reduce commissioning time from days to hours.
- Absolute Position Retention – Battery-backed absolute encoder option eliminates homing routines after power loss, critical for multi-shift production lines.
- Seamless Mitsubishi Ecosystem Integration – Native compatibility with MELSEC Q/L/iQ-R PLCs, GOT HMIs, and MR Configurator2 software for unified engineering workflow.
- Robust Regenerative Handling – Supports external MR-RB regenerative resistors for high-inertia loads such as large rotary tables and winding machines.
- Long-Term Parts Availability – Mitsubishi Electric maintains spare-parts support for legacy J2S drives; Konmask.com stocks tested units to bridge OEM lead times.
Complete System Bill of Materials
For a fully operational servo axis based on the MR-J2S-350A, engineers typically specify:
- Servo Drive: MR-J2S-350A (this unit)
- Servo Motor: HC-SFS352 or HC-RFS353 (3.5 kW, matched inertia class)
- Encoder Cable: MR-JCCBL□M-L (standard) or MR-JCCBL□M-H (long-distance)
- Power Cable: MR-PWS1CBL□M-A1-L / -A2-L
- Regenerative Resistor: MR-RB032 or MR-RB12 (application dependent)
- EMC Filter: FR-BIF or equivalent line filter for CE compliance
- Setup Software: MR Configurator2 (SW1DNC-MRC2-E)
- Communication Cable: MR-CPCATCBL3M (USB–RS-422 converter)
Compliance & Industry Standards
- CE Marking – Low Voltage Directive (LVD) 2014/35/EU & EMC Directive 2014/30/EU
- UL 508C – Power Conversion Equipment
- RoHS Compliant (Mitsubishi Electric declaration)
- ISO 9001 manufactured facility (Mitsubishi Electric Nagoya Works)
Quality Assurance & Sourcing
Every MR-J2S-350A unit offered by Konmask.com undergoes the following before dispatch:
- Visual inspection for physical damage, corrosion, and counterfeit indicators
- Power-on functional test: DC bus charge, fan operation, and fault-code readout
- Parameter initialisation and firmware version logging
- Anti-static packaging with humidity indicator card
Units are sourced from authorised distributors, OEM decommissions, and verified secondary-market channels. Condition (New / Refurbished / Used-Tested) is clearly stated on each listing.
How to Source This Part
- Add to Cart – Click Buy Now for immediate checkout or Add to Cart to continue browsing.
- Request a Quote – For volume orders (5+ units) or urgent project requirements, email [email protected] for a dedicated quotation within 24 hours.
- Lead Time – In-stock units ship within 1–3 business days. Out-of-stock units: typical sourcing lead time 7–21 business days.
- Export & Customs – We handle export documentation (commercial invoice, packing list, CO) for international shipments. HS Code: 8504.40 (static converters).
Application-Specific FAQ
Q: Can the MR-J2S-350A be used as a drop-in replacement for an MR-J2-350A?
A: Yes, the J2S series is mechanically and electrically backward-compatible with J2 series drives. Parameter settings may differ; refer to Mitsubishi IB-0300036 migration guide.
Q: Does this drive support full-closed loop control?
A: The standard MR-J2S-350A supports semi-closed loop. Full-closed loop requires the MR-J2S-350A-S096 special specification variant with external linear scale input.
Q: What is the maximum cable length between drive and motor?
A: Standard encoder cable maximum is 30 m. With long-distance encoder cable (MR-JCCBL□M-H) and optional MR-J2S-350A-S□ specification, up to 50 m is achievable.
Q: Is a 24 V DC control power supply required?
A: No. The MR-J2S-350A derives its control power internally from the main AC supply. An external 24 V DC supply is only required if using the CN1B interface for external I/O logic isolation.
Q: Can this drive operate on single-phase 200 V input?
A: Yes, single-phase 200–230 V AC input is supported, but continuous rated output is derated. Consult Mitsubishi application note for derating curves at single-phase operation.
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