Servomotor series JHN, JHQ, and JL – User Manual
Servomotors of the JHQ series
Jetter AG
103
Motor type
JHQ23-
0120-
088
JHQ23-
0120-
059
JHQ23-
0120-
044
Rated speed
N
n
RPM
3000
4500
6000
Rated torque
M
n
Nm
1.10
1.05
1.00
Rated current
I
n
A
0.80
1.08
1.40
Holding torque
M
o
Nm
1.20
1.20
1.20
Continuous stall current
I
o
A
0.80
1.24
1.60
Max. torque
M
max
Nm
4.2
4.2
4.2
Max. current
I
max
A
3.6
5.4
7.2
Max. speed
N
max
RPM
9000
9000
9000
Back EMF constant
K
E
V/kRPM 88.0
58.6
44.0
Torque constant
K
T
Nm/A
1.45
0.97
0.73
Winding resistance
R
2ph
Ω
36.2
16.6
9.0
Winding inductance
L
2ph
mH
70
33.3
17.4
Number of motor poles
P
mot
8
8
8
Idling speed
N
o
RPM
4400
6700
9000
Max. torque at sea level
M
x
Nm
2.7
2.8
3.2
Thermal time constant
- Copper winding
T
ther_CU
s
35
35
35
Electrical time constant
T
el
ms
1.9
2.0
1.9
Mechanical time constant
T
mech
ms
1.3
1.3
1.3
Thermal time constant
T
th
min
34
34
34
Rotor inertia without brake
J
kg*cm
2
0.44
0.44
0.44
Weight without brake
m
kg
2.2
2.2
2.2
Axial load
F
A
N
17.0
17.0
17.0
Radial load
F
R
N
165
165
165
