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MR-J3-70B-RJ004U502

The MR-J3-70B-RJ004U502 is a 700W servo amplifier from Mitsubishi's MR-J3 series, featuring SSCNET III high-speed communication and a pre-installed regenerative resistor. Designed for precision motion control, this model is optimized for industrial automation systems requiring reliable performance and easy integration.

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Key Specifications
Parameter Specification
Model MR-J3-70B-RJ004U502
Series MR-J3 (SSCNET III)
Rated Output 0.7 kW (700W)
Max. Current 4.5 A (continuous), 13.5 A (instantaneous)
Power Supply 3-phase AC 200-230V (±10%), 50/60Hz
Control Method IGBT PWM (Vector Control)
Feedback 17-bit absolute encoder (131,072 pulses/rev)
Communication SSCNET III (Fiber-optic, 10Mbps)
Regenerative Resistor Pre-installed (RJ004)
3. Control Features
✔ High-Performance Motion Control:

2.5kHz frequency response

Advanced vibration suppression (Adaptive Filter II)

Auto-tuning for optimal servo gain

✔ Network Integration:

Real-time multi-axis synchronization (up to 32 axes)

Compatible with Mitsubishi PLCs (Q/L series)

✔ User-Friendly:

LED status indicators

One-touch tuning function

Built-in EMC filter

4. Protection & Safety
Overcurrent/Overvoltage protection

Dynamic brake (STO compliant)

Encoder error detection

Regenerative overload prevention

IP20 Protection (Enclosure required for harsh environments)

5. Physical Specifications
| Dimension (W×H×D) | 90 × 130 × 150 mm |
| Weight | 1.8 kg |
| Cooling Method | Natural convection |
| Mounting | Panel mounting |

6. Environmental Ratings
Operating Temp.: 0°C to +55°C

Storage Temp.: -20°C to +65°C

Humidity: 20-90% RH (non-condensing)

Vibration Resistance: 4.9 m/s² (10-55Hz)