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AKMA Installation Manual | 6 Technical Data
6.5.4 AKMA5 Mechanical Parameters (continued)
Parameters
Torque Constant ➀➁
±10%
Back EMF Constant ➅
±10%
Motor Constant ➀
Nom
Resistance (line-line) ➅
±10%
Inductance (line-line)
Inertia (includes
±10%
feedback) ➂
Optional Brake Inertia
±10%
(additional)
Weight ➇
Static Friction ➀
Viscous Damping ➀
Thermal Time Constant
Thermal Resistance
Pole Pairs
Heat Sink Size
Notes:
➀ Motor winding temperature rise, DT=100°C, at 40 °C ambient.
➁ All data referenced to sinusoidal commutation.
➂ Add holding brake if applicable for total inertia.
➃ Motor with 125 °C rated feedback and standard heat sink.
➄ May be limited at some values of Vbus.
➅ Measured at 25°C.
➆ Brake option reduces continuous torque rating by:
AKMA51 = 0.24 Nm AKMA52 = 0.42 Nm AKMA53 = 0.55 Nm AKMA54 = 0.69 Nm
➇ Brake option increases weight by 2.0 kg (4.4 lb)
134
Kollmorgen® | kdn.kollmorgen.com | June 2024
Tol
Symbol
Units
H
Nm/A rms
1.75
K t
lb-in/A rms
15.4
K e
V rms /krpm
112.4
N-m/ÖW
0.98
K m
lb-in/ÖW
8.70
R m
ohm
2.10
L
mH
11.4
kg-cm
2
J m
lb-in-s
2
kg-cm
2
J m
2
lb-in-s
kg
W
lb
Nm
T f
lb-in
Nm/krpm
K dv
lb-in/krpm
TCT
minutes
R thw-a
°C/W
AKM53
K
L
M
P
1.24
0.99
0.85
0.60
11.0
8.7
7.5
5.3
79.8
63.6
54.7
38.4
0.98
0.96
0.96
0.93
8.70
8.49
8.50
8.20
1.06
0.69
0.51
0.27
5.7
3.6
2.7
1.3
9.10
8.1E-03
0.166
1.5E-04
10.0
22.0
0.19
1.66
0.052
0.46
28
0.50
5
12"x12"x0.5"
Aluminum Plate
AKMA54
H
K
L
N
2.57
1.50
1.13
0.80
22.8
13.3
10.0
7.1
165.6
96.6
72.9
51.3
1.17
1.18
1.13
1.12
10.39
10.43
10.03
9.91
3.20
1.08
0.65
0.33
18.3
6.2
3.5
1.8
12.00
1.1E-02
0.166
1.5E-04
11.8
26.0
0.21
1.83
0.061
0.54
31
0.45
5
12"x12"x0.5"
Aluminum Plate
P
0.74
6.5
47.3
1.14
10.10
0.27
1.5
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