Description
The Mitsubishi MR-J2M-10DU-S020 is a multi-axis servo amplifier (drive unit) base module from the MELSERVO-J2 Super (J2M) series, designed for centralized cabinet mounting to drive multiple small-capacity Mitsubishi servo axes (typically 50W–1kW per axis, depending on connected J2M axis modules).
Unlike standalone J2-series drives (MR-J2S-□A), the J2M system consists of:
- MR-J2M-10DU-S020 → Main Base Unit (Power Supply + Communication Interface) — houses the main power input (3×200V AC), regenerative resistor terminal, and communicates with the motion controller (via SSCNET or parallel I/O depending on configuration). The “-S020” suffix typically denotes a specific regional / cable-kit variant for the J2M base.
- MR-J2M-□□DU Axis Modules (e.g., MR-J2M-10DU-A — 100W axis module, MR-J2M-20DU-A — 200W, etc.) → Snap onto the right side of the base unit; each controls one servo motor.
The J2M architecture reduces panel space vs multiple individual J2S drives and shares a common DC bus among axes for regenerative energy distribution.
Key Features
- Multi-Axis Architecture: 1 Base Unit + up to 3 (or more, depending on power) Axis Modules — saves DIN rail space.
- Power Supply: 3-phase AC 200–230V input on base unit; supplies DC bus to all attached axis modules.
- Control Interface: Connects to Mitsubishi Motion Controllers (AD71, QD75, etc.) via SSCNET (Serial Servo Communication Network — J2 era = SSCNET, not SSCNET III) or can operate in stand-alone mode with I/O modules (some variants).
- Compatible Motors: Mitsubishi HC-KFS, HF-KP (J2-compatible 17-bit encoder motors — 50W–1kW typical for 10DU base).
- Regenerative Brake: External regenerative resistor connects to base unit terminals (optional — required for frequent deceleration).
- Country of Origin: Japan (Mitsubishi Electric)
Model / System Composition Table (J2M Series Example)
Model | Type | Function | Notes |
|---|---|---|---|
MR-J2M-10DU-S020 | J2M Base Unit (Main) | Power input (3×200V AC), SSCNET I/F, regen term., 24V ctrl pwr | Houses up to 3 axis modules (10DU = small cap. base) |
MR-J2M-10DU-A | J2M Axis Module | 100W (0.1kW) axis drive — snaps onto base | For HC-KFS053 / HF-KP053 etc. |
MR-J2M-20DU-A | J2M Axis Module | 200W (0.2kW) axis drive | For HC-KFS13 / HF-KP13 etc. |
MR-J2M-40DU-A | J2M Axis Module | 400W (0.4kW) axis drive | For HC-KFS23 / HF-KP23 etc. |
MR-J2S-70A | Standalone J2S Drive | Single-axis 750W — NOT part of J2M stack | Compare if multi-axis consolidation desired |
⚠️ Important Notes:
Technical Specifications (MR-J2M-10DU-S020 Base Unit — Representative)
Parameter | Specification |
|---|---|
Model / Order Code | MR-J2M-10DU-S020 (Mitsubishi MELSERVO-J2M Base Unit) |
Series | MELSERVO-J2 Super — Multi-Axis (J2M) |
Main Power Input (L1/L2/L3) | 3-phase AC 200–230 V (+10% / -15%), 50/60 Hz |
Control Power (L11/L21) | Single-phase AC 200–230 V (derived from main or separate — check manual) or DC 24V ctrl pwr on some J2M |
Max. Attached Axis Modules | Up to 3 (for 10DU small-base — total current sum within base rating ~ 10A combined?) — verify exact by axis module combo |
Communication | SSCNET (Serial Servo Network — J2 era) to Mitsubishi Motion CPU (QD75MH, A-Series Motion, etc.) |
Regenerative Resistor Terminals | Yes — external resistor (MR-RB series or equivalent) connects to R/L+, R/L- |
Protective Functions | Overcurrent, overvoltage, undervoltage, overload, encoder error, regenerative fault |
Mounting | Panel mount / DIN rail (via base bracket) |
Dimensions (Base Unit W×H×D) | ~ 60 mm(W) × 168 mm(H) × 135 mm(D) (add axis modules to right: + ~ 30 mm per axis module) |
Weight (Base Only) | ~ 1.0 kg |
Operating Temp. | 0 … +55 °C (no condensation) |
Standards | CE (some production batches), UL, cUL, RoHS (later prod.) |
(Axis Module example — MR-J2M-10DU-A: Rated 100W, 0.64A cont., matches HC-KFS053/HF-KP053 motor with 17-bit encoder)
Warranty & After-Sales
- Factory new (NOS) units: 12 months warranty
- Refurbished units: 3-6 months warranty (power-up + SSCNET link + axis rotation test on Mitsubishi test rig)
- Technical support for:
- J2M system composition check (Base + correct axis module p/n per motor kW)
- SSCNET cabling & motion controller (QD75MH / AD71) I/O & parameter setup
- Regen resistor sizing (MR-RB□ or equivalent)
- Cross-check if migrating to J3M / J4M (different SSCNET III I/F & motor encoders — not drop-in)
- Alarm code interpretation (AL.E6 = encoder, AL.16 = overcurrent, etc.)
- Compatible axis modules, cables (MR-J2HBUS□M — SSCNET cable, power cables MR-PWCNS□), and regen resistors available
Delivery Time
- Standard delivery: 3-5 working days (subject to NOS stock — J2M is legacy)
- Express shipping available upon request
Why Choose Our Store
- Genuine Mitsubishi J2M components — new-old-stock (NOS) & tested refurbished
- Global supply network with competitive pricing on legacy servo
- Expertise in Mitsubishi J2/J2M multi-axis system configuration & migration planning
- Comprehensive technical documentation (J2M system diagram, SSCNET pinout, regen resistor selection)
- Responsive customer service and support
Applications
- Multi-Axis Machine Centers: 2–3 small servo axes (X/Y/Z light duty) consolidated in one drive stack — saves panel width vs individual J2S drives.
- Electronics Assembly: Small pick-place heads, dispensing valves — multiple light axes from one base.
- Packaging / Labeling: Indexing turrets + feed rolls — 2–3 axes from single J2M base.
- Retrofit / Spare: Replace failed J2M base in existing legacy equipment — exact p/n match ensures drop-in compatibility.
- Cost-Sensitive Legacy Support: Where J2M + HC-KFS/HF-KP motors remain in service — extending life w/ genuine spares.
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