
SERVO SELECTION AND DATA SHEETS
4.2.1 Ratings and Specifications
— 4-12 —
*
2
These values are reference values.
Note These characteristics can be obtained when the following heat sink (steel plates) are
used for cooling purposes: 150 x 150 x 3 mm (5.91 x 5.91 x 0.12 in.)
24-VDC Servomotors (
j
25)
Time rating:
Continuous
Thermal class:
B
Vibration class:
15
µ
m or below
Withstand voltage:
1000 VAC for one minute
Insulation resistance:
500 VDC 10 M
Ω
min.
Enclosure:
Totally enclosed, self-cooled
Ambient temperature:
0
°
C to 40
°
C
Ambient humidity:
20% to 80% (non-condensing)
Excitation:
Permanent magnet
Drive method:
Direct drive
Mounting:
Flange method
Standard Servomotors
SGMM Servomotor
A1C31
j
A2C31
j
A3C31
j
Rated Output
*1
W (HP)
10 (0.013)
20 (0.027)
30 (0.040)
Rated Torque
*1
N
¡
m
0.0318
0.0637
0.0955
q
oz
¡
in
*3
4.5
9.0
13.5
Instantaneous Peak Torque
*1
N
¡
m
0.0955
0.191
0.2887
q
oz
¡
in
*3
13.5
27.0
40.9
Rated Current
*1
A (rms)
2.1
2.0
2.9
Instantaneous Maximum
Current
*1
A (rms)
6.0
5.7
8.6
Rated Speed
*1
min
−
1
3000
Instantaneous Maximum
Speed
*1
min
−
1
5000
Applicable Encoder
---
2048 P/R incremental encoder
Rotor
M
f
Without Brake
¢
10
−
4
kg
¡
m
2
0.00354
0.00548
0.00689
Moment of
Inertia
(
×
10
−
3
oz
¡
in
¡
s
2
)
*3
0.0501
0.0776
0.0976
Inertia
[J
M
=
With Brake
¢
10
−
4
kg
¡
m
2
0.00479
0.00673
0.00814
[J
M
=
GD
2
M
/4]
(
×
10
−
3
oz
¡
in
¡
s
2
)
*3
0.0678
0.0952
0.1152
Rated Angular Acceleration
*1
rad/s
2
90000
120000
122300
Rated Power Rate
*1
kW/s
2.90
7.40
11.4
Brake
(
i
l)
*2
Rated Voltage
V
24 VDC
---
(optional)
*2
Capacity
*3
W
2.0
2.6
---
Holding
Torque
---
Motor rated torque
---
*
1
These items and torque-speed characteristics are quoted in combination with an SGDF
SERVOPACK at an armature winding temperature of 20
°
C.
*
2
The brake is used as a holding brake (non-excitation operation). It cannot be used to stop
the Servomotor.
*
3
These values are reference values.
4
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