Overload Characteristics (Electronic Thermal Function); Overload Characteristics Graphs - Omron SMARTSTEP 2 SERIES User Manual

8-4 Overload Characteristics
(Electronic Thermal Function)
An overload protection (electronic thermal) function is built into the Servo Drive to protect the Servo
Drive and Servomotor from overloading.
If an overload does occur, eliminate the cause of the error and then wait at least one minute for the
Servomotor temperature to drop before turning on the power again.
If the power is turned ON again repeatedly at short intervals, the Servomotor windings may burn out.

Overload Characteristics Graphs

The following graphs show the characteristics of the load rate and electronic thermal operating time.
R88M-G (Cylindrical Servomotor)
Time (s)
100
10
1
0.1
115
100
R88M-GP (Flat Servomotor)
Time (s)
100
10
1
0.1
115
100

8-4 Overload Characteristics (Electronic Thermal Function)

150 200 250
150 200 250
50 W
100 W (100 V)
100 W (200 V)
200 W
400 W
300 Torque (%)
100 W to 400 W
300
Torque (%)
8
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