Servomotor series JHN, JHQ, and JL – User Manual
Servomotors of the JHQ series
Jetter AG
118
Motor type
JHQ3-
0350-
057
JHQ3-
0350-
028
JHQ3-
0450-
057
JHQ3-
0450-
028
Rated speed
N
n
RPM
3000
6000
3000
6000
Rated torque
M
n
Nm
3.1
2.0
3.9
1.00
Rated current
I
n
A
3.3
4.3
4.2
2.1
Holding torque
M
o
Nm
3.5
3.5
4.5
1.35
Continuous stall current
I
o
A
3.1
3.1
3.1
2.9
Max. torque
M
max
Nm
14.0
14.0
18.0
5.0
Max. current
I
max
A
17.3
28
22
12.3
Max. speed
N
max
RPM
9000
9000
9000
9000
Back EMF constant
K
E
V/kRPM 56.5
28.3
56.6
28.3
Torque constant
K
T
Nm/A
0.94
0.47
0.94
0.47
Winding resistance
R
2ph
Ω
3.2
0.90
2.4
3.1
Winding inductance
L
2ph
mH
18.0
4.5
14.4
11.2
Number of motor poles
P
mot
8
8
8
8
Idling speed
N
o
RPM
3800
7500
3800
7500
Max. torque at sea level
M
x
Nm
5.0
5.3
6.0
1.9
Thermal time constant
- Copper winding
T
ther_CU
s
35
35
35
35
Electrical time constant
T
el
ms
5.6
5.0
6.0
3.6
Mechanical time constant
T
mech
ms
0.69
0.77
0.66
1.1
Thermal time constant
T
th
min
36
36
39
31
Rotor inertia without brake
J
kg*cm
2
1.1
1.1
1.4
0.47
Weight without brake
m
kg
5.0
5.0
5.8
3.5
Axial load
F
A
N
25
25
26
22
Radial load
F
R
N
245
245
255
220
