Sigma II User’s Manual Chapter 8: Ratings and Characteristics
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8.1 Servomotors: Ratings, Specifications, and Dimensional Drawings
This section describes ratings, specifications, and dimensional drawings of the
servomotors. Refer to this section for selecting an appropriate servo drive.
8.1.1 SGMAH Servomotors
The following sections provide the ratings specifications, and dimensional drawings
of the servomotors by model.
Ratings and Specifications for Standard Servomotors
SGMAH Standard Servomotor Ratings and Specifications
*1
These specifications and torque-motor speed characteristics are quoted in combination with an
SGDH servo amplifier operating at at an armature winding temperature of 100°C. Other values
are quoted at 20°C. All values are typical.
*2
Rated torques are continuous allowable torque values at 40°C with a 10 × 10 × 0.25in (250 × 250
× 6mm) heat sink attached.
• Time Rating: Continuous • Insulation Class: Class B
• Vibration Class: 15µm or below • Withstand Voltage: 1500V
ac
for one minute
• Insulation Resistance: 500V
DC
,
10MΩ minimum
• Enclosure: Totally enclosed, self-cooled,
IP55 (except for through-sections of the shaft)
• Ambient Temperature: 0 to 40°C • Ambient Humidity: 20% to 80% (with no
condensation)
• Excitation: Permanent magnet • Drive Method: Direct drive
• Mounting: Flange method
Voltage 200V 100V
Servomotor Model
SGMAH
A3A A5A 01A 02A 04A 08A A3B A5B 01B 02B
Rated Output
*1
kW 0.03 0.05 0.1 0.2 0.4 0.75 0.03 0.05 0.1 0.2
Rated
Torque
*1
,
*2
oz-in 13.52 22.5 45.1 90.2 180 338 13.52 22.5 45.1 90.2
N-m 0.0955 0.159 0.318 0.637 1.27 2.39 0.0955 0.159 0.318 0.637
Instantaneous
Peak Torque
*1
oz-in 40.6 67.6 135.2 270 541 1010 40.6 67.6 135.2 270
N-m 0.286 0.477 0.955 1.91 3.82 7.16 0.286 0.477 0.955 1.91
Rated Current
*1
A
rms
0.44 0.64 0.91 2.1 2.8 4.4 0.66 0.95 2.4 3.0
Instantaneous
Maximum
Current
*1
A
rms
1.3 2.0 2.8 6.5 8.5 13.4 2.0 2.9 7.2 9.0
Rated Speed
*1
rpm 3000
Maximum
Speed
*1
rpm 5000
Torque Constant
(oz-in)/A
rms
33.7 38.0 53.6 46.2 70.6 83.6 22.2 25.8 20.7 33.2
(N-m)/A
rms
0.238 0.268 0.378 0.327 0.498 0.590 0.157 0.182 0.146 0.234