➂
Specifications
45
Motor Specifications—
Compumotor NeoMetric Series Servo Motors (92mm)
Parameter
Symbol
Units
N0921F
N0921G
N0922G
Stall Torque Continuous
1,4
T
CS
lb-in
16
16
31
N-m
1.81
1.81
3.50
Stall Current Continuous
1,2
I
CS
amps-rms
4.16
5.76
6.17
Rated Speed
ω
r
rpm
2500
3575
1975
rps
41.7
59.6
32.9
Peak Torque
1
T
pk
lb-in
48
48
93
N-m
5.42
5.42
10.51
Peak Current, rms
1,6
I
pk
amperes
12.5
17.3
18.5
Torque @ Rated Speed
1
T
C
lb-in
12.9
12.9
24.6
N-m
1.46
1.46
2.78
Rated Power-Output Shaft
1
Po
watts
383
548
578
Voltage Constant
3,4
K
b
volts/radian/sec
0.427
0.309
0.556
Voltage Constant
3,4
K
e
volts/KRPM
44.66
32.37
58.18
Torque Constant
3,4
K
t
lb-in/amp rms
3.84
2.78
5.0
Resistance
3
R
ohms
3.72
1.94
2.32
Inductance
5
L
millihenries
17.11
8.99
14.72
Thermal Resistance
1
R
th
°
C/watt
1.06
1.06
0.77
Motor Constant
K
m
lb-in/
√
watt
1.96
2.00
3.29
Viscous Damping
B
lb-in/Krpm
0.075
0.075
0.0875
Torque-Static Friction
T
f
oz. in.
4
4
6
Thermal Time Constant
τ
th
minutes
60
60
60
Electrical Time Constant
τ
e
milliseconds
4.6
4.6
6.4
Mechanical Time Constant
τ
m
milliseconds
1.13
1.13
0.64
Rotor Inertia
J
lb-in-sec
2
0.000363
0.000363
0.000623
Weight
#
pounds
8.1
8.1
11.7
Winding Class
H
H
H
1
@25
°
C ambient with 10 x 10 x 0.25 in. mounting plate, 90
°
C encoder temperature.
2
RMS current, line-to-line, six state commutation.
3
+/- 10% line-to-line.
4
Peak value.
5
+/- 30% line-to-line, inductance bridge measurement @ 1KHz.
6
Peak current for 2 seconds maximum with initial winding temperature of 40
°
C.
All specifications are subject to engineering change.
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