Datasheet
1S servo motor 331
2000 r/min servo motors, 230 V/400 V
Ratings and specifications
Torque-speed characteristics
Voltage 230 V 400 V
Servo motor model: R88M-1@ 23-bit incremental
encoder
M1K020H-@ M1K520H-@
23-bit absolute
encoder
M1K020T-@ M1K520T-@ M40020C-@ M60020C-@ M1K020C-@ M1K520C-@ M2K020C-@ M3K020C-@
Rated output W 1000 1500 400 600 1000 1500 2000 3000
Rated torque Nm 4.77 7.16 1.91 2.86 4.77 7.16 9.55 14.3
Instantaneous peak torque Nm 14.3 21.5 5.73 8.59 14.3 21.5 28.7 43.0
Rated current A (rms) 5.2 8.6 1.1 1.6 2.9 4.1 5.7 8.6
Instantaneous max. current A (rms) 16.9 28.4 3.9 5.5 9.4 13.5 19.8 28.3
Rated speed min
-1
2000
Max. speed min
-1
3000
Torque constant N·m/A 0.93 0.83 1.75 1.84 1.69 1.75 1.74
Rotor moment of inertia kg·m
2
x10
-4
(without brake)
6.0042 9.0042 2.5042 3.9042 6.0042 9.0042 12.2042 15.3122
kg·m
2
x10
-4
(with brake)
6.5042 9.5042 2.8472 4.2472 6.5042 9.5042 12.7042 17.4122
Electrical time constant ms 13.0 15.0 6.8 7.8 13.0 13.0 14.0 20.0
Allowable radial load N 490 784
Allowable thrust load N 196 343
Weight kg
(without brake)
6.6 8.5 3.9 4.7 6.6 8.5 10.0 12.0
kg (with brake) 8.6 10.5 4.8 5.8 8.6 10.5 12.0 15.0
Brake
specifications
Excitation voltage
*1
*1
This is a non-excitable brake (it is released when excitation voltage is applied).
24 VDC ±10%
Holding brake moment of
inertia J
kg·m
2
x10
-4
0.5 0.343 0.5 2.1
Current consumption (at 20°C) A 0.51 0.3 0.51 0.66 0.6
Static friction torque Nm (minimum) 9.0 3.92 9.0 12.0 16.0
Basic specifications
Insulation class Type F
Ambient operating/storage temperature 0 to 40°C/-20 to 65°C
Ambient operating/storage humidity 20 to 90% (non-condensing)
Atmosphere No corrosive gases
Insulation resistance 10 M min. at 500 VDC between the power terminals and FG terminal
Vibration resistance Vibration acceleration of 49 m/s
2
Impact resistance Acceleration of 98 m/s
2
max. 3 times each in X, Y and Z directions
Enclosure IP67 (except for through-shaft parts when connectors are inserted)
R88M-1M1K020H/T (230 V, 1 kW) R88M-1M40020C (400 V, 400 W)R88M-1M1K520H/T (230 V, 1.5 kW)
0
2
4
6
8
10
12
16
14
0
Rotation [r/min]
Torque [N·m]
1000 2000 3000
0
5
10
15
20
25
Rotation [r/min]
Torque [N
·m]
0 1000 2000 3000
0
1
2
3
4
5
6
7
Rotation [r/min]
Torque [N·m]
0 1000 2000 3000
R88M-1M60020C (400 V, 600 W) R88M-1M1K520C (400 V, 1.5 kW)R88M-1M1K020C (400 V, 1 kW)
0
2
1
4
3
6
8
9
10
7
5
Rotation [r/min]
Torque [N·m]
0 1000 2000 3000
0
2
4
6
8
10
12
16
14
Rotation [r/min]
Torque [N·m]
0 1000 2000 3000
0
5
10
15
20
25
Rotation [r/min]
Torque [N·m]
0 1000 2000 3000
R88M-1M2K020C (400 V, 2 kW) R88M-1M3K020C (400 V, 3 kW)
0
5
10
15
20
30
35
25
Rotation [r/min]
Torque [N·m]
0 1000 2000 3000
0
10
20
30
40
50
Rotation [r/min]
Torque [N·m]
0 1000 2000 3000
Momentary
operation range
Momentary
operation range
Momentary
operation range
Momentary
operation range
Momentary
operation range
Momentary
operation range
Momentary
operation range
Momentary
operation range
Continuous
operation range
Continuous
operation range
Continuous
operation range
Continuous
operation range
Continuous
operation range
Continuous
operation range
Continuous
operation range
Continuous
operation range