







The Mitsubishi Servo Drive MR-J3-100B is a 1kW AC servo amplifier engineered for demanding industrial automation applications requiring precise speed, torque, and position control. This model supports both 3-phase and 1-phase 200–230VAC input, making it versatile for various installation environments. With a built-in regenerative resistor, high-speed pulse input up to 1Mpps (differential), and electronic gear capability, the MR-J3-100B delivers exceptional performance for CNC machines, robotics, packaging lines, and other motion control systems. Its advanced safety protections and robust construction ensure reliable operation in harsh factory conditions.
| Parameter | Specification for MR-J3-100B |
|---|---|
| Rated Output | 1 kW (1.34 HP) |
| Main Circuit Power Supply | 3-phase 200–230VAC 50/60Hz or 1-phase 200–230VAC 50/60Hz |
| Control Circuit Power Supply | 24VDC ±10% (300mA required) |
| Permissible Voltage Fluctuation | 3-phase: 170–253VAC; 1-phase: 170–253VAC |
| Permissible Frequency Fluctuation | ±5% maximum |
| Power Consumption | 45 W |
| Built-in Regenerative Resistor | 100 W |
| External Regenerative Resistor (Option) | Not applicable (built-in sufficient) |
| Control System | Sine-wave PWM control / current control system |
| Dynamic Brake | Built-in |
| Safety Features | Overcurrent, overvoltage, overload (electronic thermal), motor overheat, encoder fault, regeneration fault, undervoltage, overspeed, excess error |
| Maximum Input Pulse Frequency | 1 Mpps (differential receiver), 200 kpps (open collector), optional 4 Mpps |
| Positioning Feedback Pulse | 262,144 p/rev (encoder resolution) |
| Command Pulse Multiple (Electronic Gear) | A: 1–1,048,576; B: 1–1,048,576; Ratio: 1/10 < A/B < 2000 |
| Positioning Complete Width | 0 to ±10,000 pulses (command pulse unit) |
| Excess Error | ±3 rotations |
| Torque Limit | Set by parameters or external analog input (0 to +10VDC) |
| Speed Control Range | Analog: 1:2000; Internal: 1:5000 |
| Analog Speed Command Input | 0 to ±10VDC / rated speed |
| Speed Fluctuation Rate | ±0.01% max (load 0–100%); 0% (power ±10%); ±0.2% max (ambient 25°C±10°C) |
| Analog Torque Command Input | 0 to ±8VDC / maximum torque (input impedance 10–12kΩ) |
| Speed Limit (Torque Mode) | Set by parameters or external analog input (0 to ±10VDC) |
| Structure | Fan-cooled open (IP00) |
| Ambient Temperature | 0–55°C (operation); -20–65°C (storage) |
| Ambient Humidity | 90% RH max (non-condensing) |
| Atmosphere | Indoors, no corrosive/inflammable gas, oil mist, or dust |
| Elevation | 1000 m or less above sea level |
| Vibration | 5.9 m/s² max |
| Weight | Approx. 2.1 kg (4.6 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