Mitsubishi MR-J3-20A Servo Drive

Series#: Mitsubishi

Product Details

Model: MITSUBISHI MR-J3-20A – High-performance servo drive for 200W AC servo systems.
Sine-wave PWM control with current control system ensures precise torque and speed regulation.
Built-in dynamic brake for models up to 100A, enhancing safety during power loss or emergency stops.
Supports 1 Mpps differential input or 200 kpps open collector for flexible positioning commands.
Wide operating temperature range: 0 to 55°C, with 90% RH non-condensing humidity tolerance.
Compact self-cooling IP00 enclosure – ideal for panel mounting in industrial environments.
100% Original product. We provide efficient, traceable, and secure global shipping solutions.

Specification

The MITSUBISHI MR-J3-20A servo drive is a cornerstone of the MR-J3 series, engineered for 200W AC servo motors requiring high-speed, high-precision motion control. This amplifier integrates advanced sine-wave PWM control with a current control system, delivering exceptional torque linearity and speed stability across all operating modes. Designed for 3-phase 200–230VAC or 1-phase 200–230VAC input, it supports positioning, speed, and torque control modes with electronic gear ratios up to 2000:1. The MR-J3-20A features a built-in dynamic brake for reliable deceleration and includes comprehensive safety protections such as overcurrent, overvoltage, and overload shutdown. With a maximum input pulse frequency of 1 Mpps (differential) and a positioning feedback resolution of 262,144 pulses per revolution, this drive is ideal for applications in CNC machinery, robotics, and automated assembly lines. Its self-cooling open IP00 structure ensures reliable operation in clean indoor environments, with a weight of just 0.8 kg (1.8 lb) for easy installation.

Parameter	Specification (MR-J3-20A)
Power Supply (Main Circuit)	3-phase 200–230VAC 50/60 Hz or 1-phase 200–230VAC 50/60 Hz
Permissible Voltage Fluctuation	3-phase: 170–253VAC; 1-phase: 170–253VAC
Permissible Frequency Fluctuation	±5% maximum
Power Consumption	30 W
Interface Power Supply	24VDC ±10%, 300 mA required
Built-in Regenerative Resistor	10 ohms
Control System	Sine-wave PWM control / current control system
Dynamic Brake	Built-in
Safety Features	Overcurrent, overvoltage, overload, motor overheat, encoder fault, undervoltage, overspeed, excess error
Maximum Input Pulse Frequency	1 Mpps (differential), 200 kpps (open collector)
Positioning Feedback Pulse	262,144 p/rev (encoder resolution)
Command Pulse Multiple	Electronic gear A/B: A=1 to 1,048,576; B=1 to 1,048,576; 1/10 < A/B < 2000
Positioning Complete Width	0 to ±10,000 pulses (command pulse unit)
Excess Error Setting	±3 rotations
Torque Limit	Set via parameters or external analog input (0 to +10VDC / max torque)
Speed Control Range	Analog: 1:2000; Internal: 1:5000
Analog Speed Command	0 to ±10VDC / rated speed
Speed Fluctuation Rate	±0.01% max (load fluctuation 0–100%); ±0.2% max (ambient temperature 25°C ±10°C)
Torque Control Mode Input	0 to ±8VDC / maximum torque (impedance 10–12 kΩ)
Speed Limit in Torque Mode	Set via parameters or external analog input (0 to ±10VDC / rated speed)
Structure / Cooling	Self-cooling, open type (IP00)
Ambient Temperature	Operating: 0–55°C; Storage: -20–65°C (non-freezing)
Ambient Humidity	90% RH max (non-condensing)
Atmosphere	Indoors, no corrosive gas, oil mist, or dust
Elevation	1000 m or less above sea level
Vibration Resistance	5.9 m/s² maximum
Weight	0.8 kg (1.8 lb)