Technical specifications
12.2 General data
Converter cabinet units
Operating Instructions, 07/2016, A5E03347396A
651
12.2.2
Overload capability
The converter is equipped with an overload reserve to deal with breakaway torques, for
example.
In drives with overload requirements, the appropriate base load current must, therefore, be
used as a basis for the required load.
The overloads apply under the precondition that the converter is operated at its base-load
current before and after the overload (a duty cycle duration of 300 s is used as a basis here).
Low overload
The base-load current for low overload (I
L
) is based on a load duty cycle of 110% for 60 s or
150% for 10 s.
Figure 12-1 Low overload
High overload
The base-load current for a high overload I
H
is based on a duty cycle of 150% for 60 s or
160% for 10 s.
Figure 12-2 High overload
Summary of Contents for SINAMICS G150
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