7.1.8 Motor Cooling While Stopped
The Motor Overload Cooling Time parameter is used to adjust the cooling rate of the motor overload. When the motor is stopped and
cooling, the accumulated motor overload content is reduced in an exponential manner.
When the motor is stopped, the motor overload cools as shown in the following Figure 28.
137
7 - THEORY OF OPERATION
t
e
eCoolingTim
5
* Stoppeden Content wh OL Content OL =
M
2
X
Motor OL Cooling, Motor Stopped
0
10
20
30
40
50
60
70
80
90
100
0 200 400 600 800 1000 1200 1400 1600 1800 2000
Time (sec)
Remaining OL Content %
330min
12 min
20 min
15 min
Figure 28: Motor Cooling While Stopped Curves
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