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1. FUNCTIONS AND CONFIGURATION
1.3 Unit standard specifications
(1) Base unit
Model MR-J2M-BU4 MR-J2M-BU6 MR-J2M-BU8
Number of slots 4 slots 6 slots 8 slots
Voltage/frequency 3-phase 200 to 230VAC or 1-phase 200 to 230VAC, 50/60Hz
Permissible voltage fluctuation 1-phase 170 to 253VAC
Permissible frequency fluctuation Within 5%
(Note)
Control
circuit
power
supply
Inrush current 20A (5ms)
Voltage/frequency 3-phase 200 to 230VAC or 1-phase 200 to 230VAC, 50/60Hz
Permissible voltage fluctuation 3-phase 170 to 253VAC or 1-phase 170 to 253VAC, 50/60 Hz
Permissible frequency fluctuation Within 5%
Maximum servo motor connection
capacity [W]
1600 2400 3200
Continuous capacity [W] 1280 1920 2560
Main
circuit
power
supply
Inrush current 62.5A (15ms)
Function Converter function, regenerative control, rushing into current control function
Protective functions
Regenerative overvoltage shut-off, regenerative fault protection,
undervoltage /instantaneous power failure protection
[kg] 1.1 1.3 1.5
Mass
[lb] 2.4 2.9 3.3
Note. The control circuit power supply is recorded to the interface unit.
(2) Drive unit
Model MR-J2M-10DU MR-J2M-20DU MR-J2M-40DU MR-J2M-70DU
Voltage/frequency 270 to 311VDC
Power
supply
Permissible voltage fluctuation 230 to 342VDC
Control system Sine-wave PWM control, current control system
Dynamic brake Built-in
Protective functions
Overcurrent shut-off, functions overload shut-off (electronic thermal relay), servo
motor overheat protection, encoder fault protection, overspeed protection,
excessive error protection
Structure Open (IP00)
Cooling method Self-cooled Force-cooling (With built-in fan unit)
[kg] 0.4 0.4 0.4 0.7
Mass
[lb] 0.89 0.89 0.89 1.54
(3) Interface unit
Model MR-J2M-P8A
Control circuit power supply Power supply circuit for each unit(8 slots or less)
Interface
Pulse train interface 8 channels
RS-232C interface 1 channel
RS-422 interface 1 channel
DIO
Forced stop input (2 points), alarm output (2 points), input signal (40 points),
output signal (16 points)
AIO Analog monitor 3channels
Structure Open (IP00)
[kg] 0.5
Mass
[lb] 1.10