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3 Specifications
AC Servomotors/Servo Drives 1S-series with Built-in EtherCAT® Communications User’s Manual (I586)
3-2 Servomotor Specifications
3
3-2-3 Characteristics
*1. This is a typical value for when the Servomotor is used at a normal temperature (20°C, 65%) in combination with a Servo
Drive.
*2. The rated values are the values with which continuous operation is possible at an ambient temperature of 40°C when
the Servomotor is horizontally installed on a specified radiator plate.
*3. This value is for models without options.
*4. The allowable radial and thrust loads are the values determined for a limit of 20,000 hours at normal operating tempera-
tures.
Model (R88M-) 400 VAC
Item Unit 1M1K520C 1M2K020C 1M3K020C
Rated output*
1
*
2
W 1,500 2,000 3,000
Rated torque*
1
*
2
N·m 7.16 9.55 14.3
Rated rotation speed*
1
*
2
r/min 2,000
Maximum rotation speed r/min 3,000
Momentary maximum torque*
1
N·m 21.5 28.7 43.0
Rated current*
1
*
2
A (rms) 4.1 5.7 8.6
Momentary maximum current*
1
A (rms) 13.5 19.8 28.3
Rotor inertia Without
brake
× 10
-4
kg·m
2
9.0042 12.2042 15.3122
With brake
× 10
-4
kg·m
2
9.5042 12.7042 17.4122
Applicable load inertia
× 10
-4
kg·m
2
79.9 100 142
Torque constant*
1
N·m/A
(rms)
1.75 1.75 1.74
Power rate*
1
*
3
kW/s 57 75 134
Mechanical time constant*
3
ms 0.85 0.80 0.76
Electrical time constant ms 13 14 20
Allowable radial load*
4
N 490 784
Allowable thrust load*
4
N 196 343
Weight Without brake kg 8.5 10 12
With brake kg 10.5 12 15
Radiator plate dimensions (mate-
rial)
mm
470 × 470 × t20 (aluminum)
Brake
specifi-
cations*
5
Excitation voltage*
6
V 24 VDC±10%
Current consumption
(at 20°C)
A 0.51 0.66 0.60
Static friction torque N·m 9.0 min. 12 min. 16 min.
Attraction time ms 100 max. 100 max. 150 max.
Release time*
7
ms 30 max. 30 max. 50 max.
Backlash ° 0.6 max. 0.6 max. 0.6 max.
Allowable braking work J 1,000 1,000 350
Allowable total work J 3,000,000 3,000,000 1,000,000
Allowable angular
acceleration
rad/s
2
10,000 max.
Brake lifetime (acceler-
ation/deceleration)
--- 10 million times min.
Insulation class --- Class F