





The Mitsubishi MR-J2S-70B is a robust servo amplifier from the renowned MR-J2S series, designed to deliver precise and efficient control for 750W AC servo motors. This drive excels in applications requiring high-speed positioning, such as CNC machinery, packaging equipment, and robotic systems. Featuring sine-wave PWM control, it ensures minimal torque ripple and smooth operation across a wide speed range. The unit integrates a dynamic brake for rapid deceleration and includes a full suite of protective functions to safeguard both the drive and motor. With its fan-cooled, open-type enclosure (IP00), the MR-J2S-70B is built for continuous duty in demanding factory floor conditions. This model supports a maximum command input frequency of approximately 10 Mpps, enabling high-resolution position control.
| Parameter | MR-J2S-70B (750W) |
|---|---|
| Control Circuit Power Supply | 1-phase 200 to 230VAC, 50/60Hz |
| Control Circuit Voltage Fluctuation | 170 to 253VAC |
| Control Circuit Frequency Fluctuation | ±5% max |
| Control Circuit Power Consumption | 50W |
| Main Circuit Power Supply | 3-phase 200 to 230VAC, 50/60Hz (or 1-phase 230VAC) |
| Main Circuit Voltage Fluctuation | 170 to 253VAC (3-phase) / 207 to 253VAC (1-phase) |
| Main Circuit Frequency Fluctuation | ±5% max |
| Control System | Sine-wave PWM control / Current control system |
| Dynamic Brake | Built-in |
| Safety Features | Overcurrent shutdown, regeneration overvoltage shutdown, overload shutdown (electronic thermal), servo motor overheat protection, encoder fault protection, regeneration fault protection, undervoltage/sudden power outage protection, overspeed protection, excess error protection |
| Maximum Command Input (Position Control) | Approximately 10 Mpps |
| Structure | Fan cooling, open (IP00) |
| Ambient Temperature | 0 to 55°C (32 to 131°F) operating; –20 to 65°C (–4 to 149°F) storage |
| Ambient Humidity | 90% RH max (non condensing) operating and storage |
| Atmosphere | Indoors (no direct sunlight); no corrosive gas, inflammable gas, oil mist or dust |
| Elevation | 1000m (3280ft) or less above sea level |
| Vibration | 5.9 m/s² maximum |
| Mass | 1.7 kg (3.7 lb) |

What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22