Siemens SINAMICS S220

I
DC link real
=I
DC link
*I
Motor
/I
Motor Module
*cosφ
Table 5-2 Overview of abbreviations
Abbreviation Meaning
I
d real
Real DC link current of the Motor Module
I
d
DC link current of the Motor Module at rated current (I
n
)
I
Motor
Rated motor current
I
Motor Module
Rated current of the Motor Module
cosφ Motor power factor
The values for the motor are provided in the technical data of the motor. The values for the
Motor Modules are listed in the following chapters:
• Motor Modules 3...30A and 2x3...2x18A: "Technical data (Page195)"
• Motor Modules 45A and 60A: "Technical data (Page221)"
• Motor Modules 85A, 132A and 200A: "Technical data (Page163)"
5.2.3 Calculating the continuous current-carrying capacity of the DC link busbars
Overview
The con󹪝guration of the drive line-up is directly associated with the current requirement of the
components. The continuous current-carrying capacity of the DC link busbars must be
calculated when con󹪝guring the system in order that the DC link busbars are not overloaded.
Mounting
5.2Layout of the components
Booksize power units
Equipment Manual, 09/2023, A5E53307519B AA 79