9-7    
※ Standard Specifications for JSMA-PM 
 
JSMA-P□□□□ 
Motor Mode  Symbol Unit 
MB10 MB15  MB20 MB30 MC10 MC15  MC20 MC30 MH30
Drive Model  30A 30A/50A3 50A3 75A3 30A 30A/50A3 50A3  75A3 75A3
Rated Output  P
R
  KW 1.0  1.5   2.0 3.0 1.0  1.5   2.0   3.0  3.0 
Rated Torque  T
R
 
N.m 
4.78 7.16  9.55 14.33 3.20 4.78   6.37  9.55  19.1 
Max. Torque  T
max
 
N.m 
14.33 21.49  28.65 42.96 9.60  14.33   19.11 28.65  49.5 
Rated Speed  N
R
  rpm 2000  3000 1500
Max. Speed  N
max
  rpm 2800  4000 2000
Rated Current  I
R
  A 5.16 7.57 9.18 14.0 4.96 7.06   9.5   14.0  15.0 
Max. Armature 
Current 
I
max
  A 15.5 22.71 27.5 42.0 14.88  21.2   28.5  42.0 
39.0 
Torque Constant  K
T
 
N.m/A 
1.019 1.060  1.140 1.130 0.715 0.740   0.740 0.750  1.27 
Induced Voltage 
Constant 
K
E
  V/k rpm  106.8  108.7  119.3  118.3  74.6  77.5   77.4  78.5 
81.32 
Rotor Moment of 
Inertia 
J
M
 
Kg.cm
2
 
6.26  8.88  12.14  17.92  4.60  6.26   8.88  12.14 
39.99 
Armature 
Resistor 
Ra  Ω  1.22  0.79  0.58  0.33  1.02  0.65   0.40  0.25 
0.18 
Armature 
Inductance 
La  mH  6.70  4.74  3.78  2.12  5.06  3.58   2.40  1.62 
2.89 
Mechanical Time 
Constant 
Tm  ms  0.70  0.61  0.52  0.45  0.88  0.71   0.62  0.51 
0.69 
Electrical Time 
Constant 
Te  ms  5.49  6.00  6.52  6.38  4.96  5.48   6.00  6.56 
16.12 
Weight(Standard)  W  kgw 6.47  8.08  10.16 13.87 5.29  6.49   8.08  10.16  19.5 
Insulation Grade  ─  ─ 
Class B (130℃) 
Class F 
(155℃)
Operating 
Ambient Temp. 
T 
℃ 
0 ~ 40 
Operating 
Ambient 
Humidity 
RH  % <90 
Storage Temp.  T 
℃ 
-20 ~ 60 
Storage Humidity  RH  % <90 
1( kgf‧cm)=0.0980665(N‧m)   ;   1(gf‧cm‧s
2
)=0.980665(kg‧cm
2
)