Siemens SINAMICS S120 - Page 237

Cabinet Modules
5.6 Motor Modules in chassis format
Cabinet Modules NEMA
Manual, 04/2014, A5E03586450A
237
For overload, the following precondition applies: The drive is operated with its base load
current before and after the overload occurs (a duty cycle duration of 300 s is used as a
basis here).
Slight overload
The base load current I
L
is based on a duty cycle of 110% for 60 s or 150% for 10 s with a
duty cycle period of 300 s.
Figure 5-40 Slight overload
High overload
The base load current I
H
is based on a load cycle of 150% for 60 s or 160% for 10 s with a
load cycle period of 300 s.
Figure 5-41 High overload