Yaskawa Large Capacity Sigma II Series - Manual (Page 294)

7 Servo Selection and Data Sheets
7.3.3 Overload Characteristics
7-18
7.3.3 Overload Characteristics
SERVOPACKs have a built-in overload protective function that protects the SERVOPACKs
and servomotors from overload. Allowable power for the SERVOPACKs is limited by the
overload protective function as shown in the figure below.
The overload detection level is set under hot start 1 conditions at a servomotor ambient tem-
perature of 40 °C (104 °F).
Fig. 7.1 Overload Characteristics
1 Hot Start
A hot start indicates that both the SERVOPACK and the servomotor have run long enough at the rated
load to be thermally saturated.
TERMS
Operating Time (s)
Motor Current
Rated Current Maximum Current
Approx.
Rated current + Maximum current
2
10000
1000
100
5
1
10000
1000
100
5
1
10000
1000
100
10
5
1
10000
1000
100
10
5
1