YASKAWA SGM7J-A5A, Техническое дополнение

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Rotary Servo Motors
SGM7G
157
Rotary Servo Motors
Servo Motor Heat Dissipation Conditions
The Servo Motor ratings are the continuous allowable values at a surrounding air temperature of 40°C
when a heat sink is installed on the Servo Motor. If the Servo Motor is mounted on a small device compo-
nent, the Servo Motor temperature may rise considerably because the surface for heat dissipation
becomes smaller. Refer to the following graphs for the relation between the heat sink size and derating
rate.
When using Servo Motors with derating, change the detection timing of overload warnings and overload
alarms by referring to the motor overload detection level described in the following manual.

-7-Series AC Servo Drive Rotary Servo Motor Product Manual (Manual No.: SIEP S800001 36)
Note: The derating rates are applicable only when the average motor speed is less than or equal to the rated motor speed.
If the average motor speed exceeds the rated motor speed, consult with your Yaskawa representative.
The actual temperature rise depends on how the heat sink (i.e., the Servo Motor mounting
section) is attached to the installation surface, what material is used for the Servo Motor
mounting section, and the motor speed. Always check the Servo Motor temperature with the
actual equipment.
Important
0 150 250 300 200 100 50
0
20
40
60
80
100
120
0 100 200 300 400
0
20
40
60
80
100
120
0 100 200 300 400 500 600 700
0
20
40
60
80
100
120
0
20
40
60
80
100
120
0 100 200 300 400 500 600
Derating rate (%)
Heat sink size (mm) Heat sink size (mm)
Derating rate (%)
SGM7G-03A and -05A SGM7G-09A, -13A, and -20A
SGM7G-30A, -44A, and -55A
SGM7G-75A
SGM7G-1AA and -1EA
Derating rate (%)
Heat sink size (mm) Heat sink size (mm)
Derating rate (%)
0 150 250 300 200 100 50
0
20
40
60
80
100
120
0 100 200 300 400
0
20
40
60
80
100
120
SGM7G-05D SGM7G-09D, -13D, -20D
0 100 200 300 400 500 600 700
0
20
40
60
80
100
120
0
20
40
60
80
100
120
0 100 200 300 400 500 600
SGM7G-30D, -44D, -55D
SGM7G-75D
SGM7G-1AD, -1ED
Derating rate (%)
Heat sink size (mm) Heat sink size (mm)
Derating rate (%)
Heat sink size (mm)
Derating rate (%)
Heat sink size (mm)
Derating rate (%)