Description
Mitsubishi MR-JET-20G-N1 – EtherCAT servo amplifier for 2.0 kW-class motion control
The Mitsubishi MELSERVO-JET MR-JET-20G-N1 is an EtherCAT servo amplifier designed for fast, precise control of 2.0 kW-class servomotors. From my experience, the “-G” variant is the right pick when you want clean integration with an EtherCAT master and tight cycle times without the wiring overhead of pulse/analog systems. You might notice that the compact “book” form factor also makes panel layout easier, especially when you’re trying to squeeze multiple axes into a small cabinet.
Typical applications include high-speed pick-and-place, indexing tables, packaging formers, and small machine tools. One thing I appreciate is how the MR-JET series keeps the setup workflow straightforward—auto-tuning is quick, and the built-in safety (STO) helps most OEMs hit CE/UL requirements with fewer add-ons.
Company’s Order Placement Process and Guarantees
- Warranty: 365 days
- Lead time: 1 week for in-stock items; no more than one month at the latest
- Payment: 50% advance payment; full payment prior to delivery
- Express delivery: FedEx, UPS, DHL
Key Features
- EtherCAT (CoE) interface: Seamless motion integration; typically supports cyclic synchronous modes for tight control loops.
- 2.0 kW-class drive capacity: Suited for medium-inertia axes—cartesian robots, feeders, and light machining spindles.
- Compact “book” design: Space-efficient mounting; in many cases you can reduce cabinet width compared with older MR-J3/J4 frames.
- Auto-tuning and vibration suppression: Faster commissioning and better settling on flexible mechanisms.
- STO (Safe Torque Off): Dual-channel STO helps meet PL d / SIL 2 safety concepts without external contactors in most cases.
- Usability touches: Status indicators and PC tool support (MR Configurator2) make parameter edits and backup straightforward.
- Robust diagnostics: Clear alarms/monitoring cut troubleshooting time during line startups.
A maintenance lead at a packaging OEM told us this series “cut our cabinet footprint and the EtherCAT setup was painless—no surprises during FAT.”
Technical Specifications
| Brand / Model | Mitsubishi MELSERVO-JET / MR-JET-20G-N1 |
| Series / Type | MELSERVO-JET, EtherCAT servo amplifier (“-G” type) |
| HS Code | 8504.40 (Static converters / servo drives) |
| Rated Capacity Class | 2.0 kW class (match to motor selection) |
| Power Requirements | 200–240 VAC, 50/60 Hz; capacity and phase depend on axis sizing (3‑phase typical for this class) |
| Communication Interfaces | EtherCAT (CoE); PC connection via engineering tool (USB/Ethernet as supported by the series) |
| Signal I/O Types | 24 VDC digital I/O (limits/home/ready/alarm reset), STO dual-channel; analog/monitor outputs as provided by the series |
| Encoder/Feedback | Mitsubishi-compatible high‑resolution serial encoder (incremental/absolute per motor) |
| Operating Temperature | 0 to 55 °C, non‑condensing (derating may apply near upper limit) |
| Dimensions & Weight | Compact book-size frame; width for this capacity is typically ~65–75 mm; approx. 1.5–2.0 kg |
| Installation Method | Panel/cabinet mount (vertical), forced-air cooling; use proper clearances for ventilation |
| Safety | STO (Safe Torque Off); meets typical PL d / SIL 2 architectures when correctly wired |
Related or Supporting Products
- MR-JET-10G-N1: EtherCAT, 1.0 kW class—same interface, lower capacity.
- MR-JET-40G-N1: EtherCAT, 4.0 kW class—for heavier axes with higher torque demand.
- MR-JET-20A-N1: “A” type with pulse train/analog control—use when EtherCAT is not required.
- MR-J5-20G: Newer-generation EtherCAT drive with higher encoder resolution and advanced control (migration path).
- Compatible servomotors (2.0 kW class): Select Mitsubishi matched motors in the corresponding inertia class; confirm encoder type and brake options when pairing.
If you’re swapping from legacy MR-J3/MR-J4 drives, the MR-JET typically reduces wiring and helps standardize on EtherCAT across machines.
Installation & Maintenance
- Cabinet & environment: Mount vertically in a closed metal cabinet (IP54 or better is common). Keep ambient 0–55 °C, RH 10–80% non‑condensing.
- Ventilation: Provide top/bottom clearance and forced-air flow; avoid mounting heat sources directly below the drive.
- Power & grounding: Use a dedicated breaker and appropriate EMC filter; bond PE ground with short, low-impedance connection.
- Cabling: Use shielded motor/encoder and EtherCAT cables; separate power and signal routes to minimize noise. Keep STO and I/O wiring short and neat.
- Tuning & verification: Run auto-tune with the actual load; check following error and vibration suppression settings under worst-case conditions.
- Routine maintenance: Quarterly dust cleaning, fan/airflow check, and terminal torque re-check. Back up parameters via MR Configurator2. Firmware updates as released by Mitsubishi (where applicable).
- Safety checks: Validate STO wiring periodically and document the functional test results for compliance records.
Quality & Certifications
- CE, UL/cUL, and RoHS compliance (typical for MELSERVO-JET series; verify on the nameplate for your unit)
- Manufacturer warranty: typically 12 months from delivery (standard Mitsubishi policy for new units)
If you need a compatibility check (motor model, EtherCAT master, or cabinet power budget), send your BOM and we’ll validate the pairing before you place the order.
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