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Servo/Motion – MR-J3

Compact, precise and user-friendly

The new MR-J3 generation of servo drives delivers state-of-the-art technology and simple operation in a very compact package. New functions like the advanced vibration suppression system and the further improved real-time autotuning ensure maximum precision, very short positioning times and simple installation. The new amplifiers are a full 40% slimmer compared to previous series.

The MR-J3 series is available in three versions: The MR-J3-A models are suitable for drive systems with conventional control and are designed for regulating speed, torque and position control tasks. The MR-J3-A servo models are also available with an EtherCAT option. The MR-J3-B models are specified for complex, multi-axis movement sequences and for use in networked automation systems. A servo amplifier with built-in positioning (MR-J3-T) is also available.

The units configure themselves by Plug & Play for Mitsubishi Electric’s motion control and positioning control systems, to which they are connected via the high-speed optical SSCNET III network, which has a cycle period of just 0.44 milliseconds. The MR-J3 is currently available with outputs from 50W to 55kW. Units with higher outputs are being added to the range at regular intervals.

Highlights:

  • High-speed controllers for ultra-short positioning times; average speed frequency response 2100Hz
  • High-resolution encoders for maximum speed constancy (18 bits 262,144 P/rev)
  • Advanced vibration suppression for outstanding adaptation to machine requirements
  • Autotuning for extremely fast setup and installation
  • Optimum cost/benefit ratio
  • Absolute position encoder included as standard equipment
  • Minimum wiring overheads thanks to Plug & Play configuration and automatic motor identification
  • Supports global standards

Product range

Servo Amplifiers
MR-J3-A/B/T
(200 V Type)
10A
10B
10T
20A
20B
20T
40A
40B
40T
60A
60B
60T
70A
70B
70T
100A
100B
100T
200A
200B
200T
350A
350B
350T
500A
500B
500T
700A
700B
700T
Power supply Voltage/frequency* 3-phase 200-230V AC, 50/60Hz
1-phase 200-230V AC, 50/60Hz
3-phase 200-230V AC, 50/60Hz
Permissible voltage fluctuation 3-phase 200-230V AC: 170-253V AC
1-phase 230V AC: 207-253V AC
3-phase 170-253V AC
Permissible frequency fluctuation Max. ±5%
Control system Sinusoidal PWM control / current control system
Dynamic brake Built-in
Protective functions Overcurrent shutdown, regeneration overvoltage shutdown, overload shutdown (electronic thermal relay), servo motor overheating protection, encoder fault protection, regeneration fault protection, undervoltage / sudden power outage protection, overspeed protection, excess error protection
Cooling / protection rating Self-cooling, open (IP00) Fan cooling, open (IP00)
Environment Ambient temperature Operation: 0-55°C (non-condensing);
Storage: -20-65 °C (non-condensing)
Relative humidity Operation: 90% RH max. (non-condensing);
Storage: 90% RH max. (non-condensing)
Elevation Max. 1000m above sea-level
Vibration Max. 5.9m/s² (0.6G)
Weight [kg] 0.8 0.8 1.0 1.0 1.4 1.4 2.3 2.3 4.6 6.2
Servo Amplifiers
MR-J3-A4/B4/T4
(400 V Type)
60A4
60B4
60T4
100A4
100B4
100T4
200A4
200B4
200T4
350A4
350B4
350T4
500A4
500B4
500T4
700A4
700B4
700T4
11KA4
11KB4
15KA4
15KB4
22KA4
22KB4
Power supply Voltage/frequency* 3-phase 380-480V AC, 50/60Hz
Permissible voltage fluctuation 3-phase 323-528V AC, 50/60Hz
Permissible frequency fluctuation Max. ±5%
Control system Sinusoidal PWM control / current control system
Dynamic brake Built-in External option
Protective functions Overcurrent shutdown, regeneration overvoltage shutdown, overload shutdown (electronic thermal relay), servo motor overheating protection, encoder fault protection, regeneration fault protection, undervoltage / sudden power outage protection, overspeed protection, excess error protection
Cooling / protection rating Self-cooling, open (IP00) Fan cooling, open (IP00)
Environment Ambient temperature Operation: 0-55°C (non-condensing);
Storage: -20-65 °C (non-condensing)
Relative humidity Operation: 90% RH max. (non-condensing);
Storage: 90% RH max. (non-condensing)
Elevation Max. 1000m above sea-level
Vibration Max. 5.9m/s² (0.6G)
Weight [kg] 1.7 1.7 2.1 4.6 4.6 6.2 18 18 19