Siemens SINAMICS Series Operating Instructions Manual page 42

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4.2 Duty cycles for 2Q applications

• 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 DC MASTER 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

those that 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. SINAMICS DC

MASTER monitors whether the overload duration that is actually permitted for the power

unit is being maintained. For details on the power unit's dynamic overload capability, refer

to Chapter "Dynamic overload capability of the power unit (Page 591)".

• The 100% I

but are reduced according to the subsequent table.

Duty cycles for 2Q applications

Duty cycles for 2Q applications

shown previously DO NOT generally correspond to the rated unit current,

Operating Instructions, 12/2018, A5E34763375A

SINAMICS DCM DC Converter