Siemens SINAMICS DCM Betriebsanleitung Seite 447

Load class
DC IV
(p50067 = 4)
US rating
(p50067 = 5)
Note
• If a value > 1 is set at p50067, you need to make sure that the "Dynamic overload
capability of the power unit" is enabled. This requires a value > 0 to be set at p50075.
• The SINAMICS DCM DC Converter does not monitor whether the load class set using
p50067 is being adhered to. If the power unit permits it, longer overload periods can be
used than correspond to the load class.
The actual permissible overload duration for the particular power unit is always greater
than the overload duration corresponding to the particular load class. The SINAMICS
DCM DC Converter does monitor whether the overload duration that is actually permitted
for the power unit is being adhered to. For details on the dynamic overload capability of
the power unit, see the SINAMICS DCM DC Converter Operating Instructions, Chapter
10.
• The 100 % I
units, but are derated as per the following table.
SINAMICS DCM Cabinet
Operating Instructions, 04/2015, A5E36161239/RS-AA/001
Load for converter
I for 15 mins and
DC IV
2 × I for 10 s
DC IV
I for 15 mins and
US
1.5 × I for 60 s
US
shown above DO NOT generally correspond to the rated current of the
DCx
Technical specifications
10.2 General data
Load cycle
135