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3 Specifications
OMNUC G5-series (Pulse-train Input Type) AC Servomotors and Servo Drives User’s Manual
3-2 Ove
rlo
ad C
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aracteristics (Electr
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erm
al
Fu
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3
3-2-1 Ov
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3-2
Overload Characteristics
(Electronic Thermal Function)
An overload protection function (electronic thermal) is built into the Servo Drive to protect the Servo
Drive and Servomotor from overloading.
If an overload occurs, first eliminate the cause of the overload and then wait at least 1 minute for the
motor temperature to drop before turning ON the power again.
If the alarm reset operation is repeated at short intervals, the motor windings may burn out.
The following characteristics graphs show the relationship between the load ratio and electronic thermal
function’s operation time.
3-2-1
Overload Characteristics Graphs
0.1
1
10
100
50 W
100 W
200 W
400 W
750 W
[200 V]
3,000-r/min Servomotors, 50 to 750 W
115
100
150
200
250
300
Time [s]
Load ratio [%]
100
115
0.1
1
10
100
150
200
250
300
[200 V]
3,000-r/min Servomotors, 1 to 5 kW
2000-r/min Servomotors
1000-r/min Servomotors
Time [s]
Load ratio [%]
Summary of Contents for G5 R88D-KE Series
Page 3: ...2 Page 2 53 For 1 000 r min Servomotors 900 W to 3 kW Current Contents Corrected Contents...
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