3 Specifications
3-50
G5-series AC Servomotors and Servo Drives User’s Manual (with Built-in EtherCAT Communications)
Model (R88M-)
400 VAC
K2K020F K3K020F K4K020F K5K020F
Item Unit K2K020C K3K020C K4K020C K5K020C
Rated output *
1
W 2,000 3,000 4,000 5,000
Rated torque *
1
N · m9.5514.319.123.9
Rated rotation speed r/min 2,000
Maximum rotation speed r/min 3,000
Momentary maximum torque *
1
N · m28.743.057.371.6
Rated current *
1
A (rms) 5.9 8.7 10.6 13.0
Momentary maximum current *
1
A (rms)25374555
Rotor inertia Without brake
kg · m
2
8.72 × 10
-4
12.9 × 10
-4
37.6 × 10
-4
48.0 × 10
-4
With brake
kg · m
2
10.0 × 10
-4
14.2 × 10
-4
38.6 × 10
-4
48.8 × 10
-4
Applicable load inertia −
10 times the rotor inertia max. *
2
Torque constant *
1
N · m/A1.271.181.401.46
Power rate *
1
Without brake kW/s 105 159 97.1 119
With brake kW/s 91.2 144 94.5 117
Mechanical
time
constant
Without brake ms 0.68 0.56 0.60 0.60
With brake ms 0.78 0.61 0.61 0.61
Electrical time constant ms 10 12 21 19
Allowable radial load *
3
N 490 784 784 784
Allowable thrust load *
3
N 196 343 343 343
Weight Without brake kg Approx. 8.0 Approx. 11.0 Approx. 15.5 Approx. 18.6
With brake kg Approx. 9.5 Approx. 12.6 Approx. 18.7 Approx. 21.8
Radiator plate dimensions (material) 275 × 260 × t15
(AI)
380 × 350 × t30
(AI)
470 × 440 × t30 (AI)
Applicable Servo Drives (R88D-) KN20F-ECT KN30F-ECT KN50F-ECT KN50F-ECT
Brake specifications
Brake inertia
kg · m
2
1.35 × 10
-4
1.35 × 10
-4
4.7 × 10
-4
4.7 × 10
-4
Excitation voltage *
4
V24 VDC ± 10%
Power consumption (at 20°C)W19223131
Current consumption (at 20°C) A 0.79±10% 0.90±10% 1.3±10% 1.3±10%
Static friction torque N · m 13.7 min. 16.2 min. 24.5 min. 24.5 min.
Attraction time *
5
ms 100 max. 110 max. 80 max. 80 max.
Release time *
5
ms
50 max. *
6
50 max. *
6
25 max. *
7
25 max. *
7
Backlash ± 1°
Allowable work per braking J 1176 1470 1372 1372
Allowable total work J
1.5 × 10
6
2.2 × 10
6
2.9 × 10
6
2.9 × 10
6
Allowable angular acceleration
rad/s
2
10,000
Brake limit − 10 million times min.
Rating − Continuous
Insulation class − Typ e F