Mitsubishi MR-J3-100A-RJ070 Servo Driver — MELSERVO-J3 10 kW AC Servo Amplifier

Mitsubishi · MELSERVO-J3 · 10 kW Servo Amplifier · In stock

The MR-J3-100A-RJ070 is a 10 kW, 3-phase 200 V AC servo amplifier from the Mitsubishi MELSERVO-J3 family, with the "RJ070" factory option / firmware card mounted on the base MR-J3-100A. The drive accepts analog ±10 V, pulse-train and RS-485 Modbus commands, reads back position from an 18-bit serial encoder and runs in position, speed or torque mode. KOEED keeps the MELSERVO-J3 lineup in stock for in-place repair and migration projects on semiconductor handlers, large CNC, packaging, printing, label, AGV / ROV and robotic-arm platforms. Send your bill of materials to Moritta@KOEED.COM for availability and price within 24 hours.

1. Key Technical Specifications / Overview

The MR-J3-100A is the 10 kW (rated continuous) member of the servo amplifier range in the MELSERVO-J3 series. The "-RJ070" suffix denotes a factory option / firmware revision card layered on top of the standard MR-J3-100A; electrical envelope and control set match the base unit, while the RJ070 variant typically ships pre-loaded with OEM line-builder parameter sets and supplementary I/O. The headline numbers and the most-asked spec fields are summarised in the ledger table below.

2. Application Scenarios / Where It Fits

The 10 kW class of MELSERVO-J3 is the work-horse for medium-to-large axes on production machinery. Paired with HF-JP, HF-JR, HF-KP or HF-MP series motors, the MR-J3-100A-RJ070 is most often found driving:

• Semiconductor pick-and-place handlers, die bonders and lithography stages where the 18-bit encoder supports sub-micron repeatability.
• Large CNC mills, lathes and 5-axis machining centres — spindle orientation, tool magazine indexing and feed-axis applications that need clean torque control.
• High-speed flexo, offset and digital printing presses, plus label and converting lines that rely on synchronised registration between many axes.
• Packaging machinery (cartoner, case packer, palletiser) where the J3 vibration-suppression filter shortens settling time on high-inertia loads.
• AGV / ROV traction and steering drives, and robotic arms where torque-mode control over RS-485 / Modbus closes the outer position loop in a host PLC.
• General factory automation retrofit projects replacing earlier MR-J2S / MR-J2-Super drives without changing the motor footprint.

Browse adjacent power classes in the same family: MR-J3-40A (0.4 kW), MR-J3-70A (0.75 kW), MR-J3-200A (2.0 kW) and MR-J3-350A (3.5 kW). For SSCNET III fibre-bus integration step up to the MR-J3-100B; for CC-Link IE field use the MR-J3-100T.

3. Integration & Wiring Notes

The MR-J3-100A-RJ070 uses the standard MR-J3 connector set. Treat the wiring story in five blocks: main power (TE1), motor leads (U/V/W on TE2), regenerative resistor (P-C / D, with the internal jumper open when fitting an external unit), 24 VDC control I/O on the CN1 50-pin connector and the serial encoder cable on CN2. Connection details are summarised below; verify against the Mitsubishi MR-J3-A Instruction Manual (SH(NA)030005) for production hardware.

• Pulse-train commands: use line-driver (high-speed) inputs on CN1 PP / PG and NP / NG to a Mitsubishi MELSEC FX / Q / iQ-R positioning module, or to a Allen-Bradley or Siemens CPU equipped with a pulse output card.
• Analog ±10 V: wire the speed / torque reference to CN1 VC / LG; suitable for closed-loop control by an Omron SYSMAC analog output or a Schneider Modicon M340 / M580 analog card.
• RS-485 / Modbus: connect to CN3; MR-J3 supports the MR-PRU03 setup interface and basic Modbus parameter read / write — a common entry point for Yaskawa MP-series controllers or KEYENCE KV-series PLCs as master.
• Encoder cable: use the dedicated MR-J3ENCBL_M-A1-L (load side) and -A2-L (motor side) cables; do not improvise. Maximum cable run is 50 m with the standard cable.
• Brake circuit: motors with a holding brake require a separate 24 VDC supply; never share the control 24 V rail.
• EMC filter & choke: recommended on the line side for CE-marked machines. KOEED can quote matching Mitsubishi FR-BSF / FR-HAL parts on the same RFQ.

Cross-brand replacement planning — if you are migrating away from Fanuc αi / βi amplifiers, Panasonic MINAS A4 / A5 or a Yaskawa Σ-V drive on the same mechanical envelope, send the existing nameplate and the host PLC type to Moritta@KOEED.COM and we will map the I/O pinout and gain settings against the MR-J3-100A-RJ070.

4. Installation & Commissioning Tips

Treat the MR-J3-100A-RJ070 like the rest of the 10 kW J3 chassis: vertical mounting, ≥ 40 mm clearance top and bottom for the fan stack, and ≥ 10 mm side-to-side when ganging multiple drives. The unit dissipates roughly 350 – 450 W at full load, so size the cabinet thermal budget accordingly. The commissioning checklist that catches the most field issues:

• Confirm the regenerative resistor selection against the deceleration energy of the load; oversizing is cheap, undersizing trips AL.30 (Regenerative alarm) at the worst possible moment.
• Set parameter PA01 for the correct control mode (position / speed / torque) before the first JOG; the RJ070 card often ships pre-configured but verify against the OEM document.
• Run the built-in real-time auto-tune at first power-up with the load coupled; switch to manual tuning only after the inertia ratio (PB06) is stable.
• Use the on-board 7-segment display plus PA / PB / PC / PD parameter groups for first-pass diagnostics; for deep tracing, attach the MR-PRU03 / MR Configurator2 over USB or RS-422.
• When fault codes appear (AL.10 / AL.16 / AL.20 / AL.32 / AL.50), translate them with the KOEED PLC Error Code Database and confirm against the J3 instruction manual before swapping hardware.
• For scaled feedback / set-point work, convert IEEE 754 floats to / from Modbus hex registers with the PLC Hex to Float Converter, and validate RS-485 framing with the Modbus CRC Calculator.

5. Procurement, Warranty & Lead Time

KOEED is an independent multi-brand sourcing channel for industrial automation spares, covering Allen-Bradley, Siemens, Mitsubishi, Omron, Fanuc, Schneider, Yaskawa, Panasonic and KEYENCE. The MR-J3-100A-RJ070 is part of that B2B-only catalogue: orders are quoted, not list-priced, because OEM option cards, packaging condition and shipping route all move the landed cost.

• Quote turnaround: 24 business hours on a single line item; 48 – 72 hours on a full BOM.
• Warranty: 12 months from invoice on tested units, covering DOA and electrical failure under normal operation. RMA handled by the original purchasing entity.
• Lead time: in-stock units ship same week from the China Sourcing Company fulfilment hub via DHL / FedEx / UPS. Reserved or refurbished units typically add 5 – 10 working days.
• Refurbished & obsolete units: KOEED specialises in hard-to-find and discontinued drives. If the new MR-J3-100A-RJ070 is no longer manufactured for your region, ask for a tested refurbished or surplus alternative on the same RFQ.
• Bulk & project pricing: available on multi-axis machine builds; send the full instrument list to Moritta@KOEED.COM rather than ordering line-by-line.