Appendix  Ⅴ  Servo motor specification
 
Ⅴ-6 
Motor    [ FMA -  ] 
LN03  LN06  LN09  LN12  LN12A LN20  LN30  LN40 
Drive [ FDA70- ] 
04/04B  05  10  12  12  20/20B  30/30B  45 
Flange Size (  □ )  130  180 
Rated output          ( W )  300  600  900  1200  1200  2000  3000  4000 
Rated current        A(rms)  2.6 4.8 7.3 9.7 8.9 17.2 24.9 32.2 
Max.  instantaneous  current   
A(rms) 
7.8 12.0 18.76 29.0 22.2 51.6 62.34 96.6 
 ( N·m )  2.86  5.72  8.6  11.5 11.5 19.1 28.6 38.2 
Rated 
torque 
( kgf·cm ) 
29.2 58.4 87.7  117 116.9 194.8 292.2 389.6
 ( N·m ) 
8.6 14.3 22.1 34.4 28.7 57.3 71.6 114.6
Max. 
instantaneous 
torque 
( kgf·cm )  87.6  146  226  351  292.3 584.4  730.5  1168.8
Rated rpm           (r/min )  1000 
Max. rpm       (r/min )  2000 
( gf·cm·s
2
 ) 
4.12 7.63 11.12 14.63 26.1 43.8 67.8 100.1
Rotator 
inertia 
( = GD
2
/4 ) 
(kg·m
2
ⅹ10
-4
) 
4.04 7.48 10.9 14.34 25.6 42.9 66.4 98.1 
Allowable load inertia 
ratio(Versus rotor) 
10 times or less 
Rated power rate     (kW/s)  20.5 43.3 68.2 91.7 51.4 84.9 123.4 148.6
Incremental 
17/33 bit 131072[p/rev.] or 2000 ~ 6000[p/rev.] 
Detector 
type 
Absolute 
17/33 bit 131072[p/rev.] or 11/13 bit 2048[p/rev.] 
Weight               ( kg )  5.5  7.0  8.5  10.0 12.9 18.2 26.8 36.1 
Torque - speed characteristics 
 
 
 
 
 
 
 
 
A : Continuous duty zone    &  B : Intermittent duty zone 
 
 
 
 
 
 
 
 
   500  1000  1500  2000
Revolution speed  (r/min )
8 
Torque(N
·
m ) 
40 
32 
24 
16 
LN12 
 
 
 
500  1000  1500  2000 
Revolution speed  (r/min ) 
 2 
Torque(N
·
m ) 
10 
 8 
 6 
 4 
LN03 
 
 
   500  1000  1500  2000 
Revolution speed  (r/min )
4 
Torque(N
·
m ) 
    16 
  12 
8 
LN06 
 
 
  500  1000  1500  2000 
Revolution speed  (r/min )
5
Torque(N
·
m ) 
25
20
15
10
LN09 
 6 
30 
24 
18 
12 
LN12A 
Torque(N
·
m ) 
 
500  1000  1500  2000 
Revolution speed  (r/min ) 
A 
B 
15
75
60
45
30
LN30 
Torque(N
·
m ) 
 
500  1000  1500  2000 
Revolution speed  (r/min ) 
A 
B 
20 
100 
80 
60 
40 
LN40 
Torque(N
·
m ) 
 
500  1000  1500  2000 
Revolution speed  (r/min ) 
A 
B 
10 
50 
40 
30 
20 
LN20 
Torque(N
·
m ) 
 
500  1000  1500  2000 
Revolution speed  (r/min ) 
A 
B