Basler BE1-11m - Page 577

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BE1-11m Settings Calculation Examples
overload (upper portion of the curve). Curve 4 is chosen in this example. Set the Standard Curve
Time Dial to 4.
Figure 84-41. Standard Curves
• Max Emergency Thermal Capacity - The standard timing is based on the motor reaching 100
percent of thermal capacity. For emergency starts, it may be desired to allow the motor to reach
greater thermal capacities, or disable tripping on thermal capacity altogether. This setting determines
the maximum motor thermal capacity overload at which an emergency start can be performed. For
this example, the maximum emergency thermal capacity is set to 150 percent. The life of the motor
shortens as the motor is allowed to exceed 100 percent of thermal capacity. Caution should be used
when selecting the Max Emergency Thermal Capacity.
0.1
1
10
100
1000
10000
0 2 4 6 8 10 12 14
TIME IN SECONDS
Multiple of Overload Pickup
T
I
M
E
D
I
A
L
20
17
14
12
4
10
8
6
3
2
1