YASKAWA SGM7J-A5A, Technical Supplement

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7
Rotary Servo Motors
Rotary Servo Motors
SGMMV
Servo Motor Ratings
*1. These values are for operation in combination with a SERVOPACK when the temperature of the armature winding is
20°C. These are typical values.
*2. The rated torques are the continuous allowable torque values with an aluminum or steel heat sink of the dimensions
given in the table.
*3. This does not apply to the shaft opening. Protective structure specifications apply only when the special cable is used.
*4. Observe the following precautions if you use a Servo Motor with a Holding Brake.
• The holding brake cannot be used to stop the Servo Motor.
• The time required to release the brake and the time required to brake depend on which discharge circuit is used.
Confirm that the operation delay time is appropriate for the actual equipment.
• The 24-VDC power supply is not provided by Yaskawa.
*5. The allowable shaft loads are illustrated in the following figure. Design the mechanical system so that the thrust and
radial loads applied to the Servo Motor shaft end during operation do not exceed the values given in the table.
Note: The values in parentheses are for Servo Motors with Holding Brakes.
Voltage 200 V
Model SGMMV
-
A1A A2A A3A
Rated Output
*1
W 10 20 30
Rated Torque
*1, *2
N•m 0.0318 0.0637 0.0955
Instantaneous Maximum Torque
*1 N•m 0.0955 0.191 0.286
Rated Current
*1 Arms 0.70 0.66 0.98
Instantaneous Maximum Current
*1 Arms 2.0 1.9 2.9
Rated Motor Speed
*1
min
-1 3000
Maximum Motor Speed
*1
min
-1
6000
Torque Constant N•m/Arms 0.0516 0.107
Motor Moment of Inertia

10
-7
kg•m
2 2.72 (4.07) 4.66 (6.02) 6.68 (8.04)
Rated Power Rate
*1
kW/s 3.72 8.71 13.7
Rated Angular Acceleration Rate
*1
rad/s
2
117000 137000 143000
Heat Sink Size (Aluminum) mm 150 x 50 x 3 250 x 250 x 6
Protective Structure
*3
Totally enclosed, self-cooled, IP55
(except for shaft opening)
Holding Brake
Specifications
*4
Rated Voltage V
24 VDC
Capacity W 2.0 2.6
Holding Torque N•m 0.0318 0.0637 0.0955
Coil Resistance

(at 20°C) 320 221.5
Rated Current A (at 20°C) 0.075 0.108
Time Required to
Release Brake
ms 40
Time Required to
Brake
ms 100
Allowable Load Moment of Inertia
(Motor Moment of Inertia Ratio)
30 times
With External Regenerative
Resistor and Dynamic Brake
Resistor
30 times
Allowable Shaft
Loads
*5
LF mm 16
Allowable Radial
Load
N 34 44
Allowable Thrust
Load
N 14.5
+10%
0
LF
Radial load
Thrust load