Specifications

Servo Amplifier Specifications
51
MR-J2S-B (400V) type
11KB4
(-U
M)
15KB4
(-UM)
22KB4
(-UM)
30KB4
(-UM)
37KB4
(-U
M)
Servo-amp model MR-J2S-
Voltage/frequency
(Note 1)
3-phase 380 to 480VAC 50/60Hz
(Note 2)
3-phase 323 to 528VAC 50/60Hz
Sine-wave PWM control/current control system
Approximately 10Mpps
Overcurrent shutdown, regeneration overvoltage shutdown, overload shutdown (electronic thermal),
servomotor overheat protection, encoder fault protection, regeneration fault protection,
undervoltage/sudden power outage protection, overspeed protection, excess error protection
Fan cooling, open (IP00)
0 to 55°C (32 to 131°F) (non freezing), storage: –20 to 65°C (–4 to 149°F) (non freezing)
90% RH max. (non condensing), storage: 90% RH max. (non condensing)
Indoors (no direct sunlight); no corrosive gas, inflammable gas, oil mist, or dust
1000 meters or less above sea level
5.9m/s
2
max.
Permissible voltage fluctuation
Permissible voltage fluctuation
Permissible frequency fluctuation
Main-
circuit
power
supply
Control system
Dynamic brake
Safety features
Maximum command input at the position control
Structure
Ambient temperature
Ambient humidity
Voltage/frequency
(Note 1)
Atmosphere
Elevation
Oscillation
Mass (kg [lb])
Mass (kg [lb])
Converter unit model
Voltage/frequency
Permissible voltage fluctuation
Permissible frequency fluctuation
Power consumption (W)
Voltage/frequency
Permissible voltage fluctuation
Permissible frequency fluctuation
Power consumption (W)
1-phase 380 to 480VAC 50/60Hz
1-phase 323 to 528VAC 50/60Hz
±5% max.
50
—
MR-HP55KA4
External option
Permissible frequency fluctuation
±5% max.
—
—
—
—
—
—
—
—
Control-
circuit
power
supply
Servo-ampConverter unit
Environ-
ment
Main-
circuit
power
supply
Control-
circuit
power
supply
45KB4 55KB4
15 (33) 16 (35.3) 20 (44.1) 36 (79.3) 47 (103.5) 47 (103.5) 47 (103.5)
The servo amplifier’s main circuit power is supplied
from the converter unit.
3-phase 380 to 480VAC 50/60Hz
(Note 2)
3-phase 323 to 528VAC 50/60Hz
±5% max.
1-phase 380 to 480VAC 50/60Hz
1-phase 323 to 528VAC 50/60Hz
±5% max.
50
22 (48.5)
Notes: 1.Rated output and rated speed of the servomotor used in combination with the servo-amp are as indicated when using the power-supply voltage and frequency listed. The output
capacity and speed cannot be guaranteed when the power-supply voltage is less than specified.
2. For torque characteristics when combined with a servomotor, refer to “servomotor torque characteristics” in this catalog.