Overload Capability - Siemens SINAMICS S150 Operating Instructions Manual

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 criterion for overload is that the drive is operated with its base load current before and
after the overload occurs (a load duration of 300 s is used as a basis here).
Low overload
The base load current for low overload (I
150% for 10 s.
Figure 12-2
High overload
The base load current for a high overload I
160% for 10 s.
Figure 12-3
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
Low overload
High overload
12.2 General technical specifications
) is based on a load duty cycle of 110% for 60 s or
L
is based on a duty cycle of 150% for 60 s or
H
Technical specifications
481