Correction Factors For Increased Ambient Temperatures And Installation Altitudes - Siemens SINAMICS S120 Equipment Manual

Figure 1-6
Note
The dashed line represents a theoretical characteristic of the correction factor. The devices
have an undervoltage threshold, which leads to shutdown when the voltage drops below it.
Consequently, the input voltage range that is actually usable has a lower limit.
1.4.2

Correction factors for increased ambient temperatures and installation altitudes

If the Line Modules and Motor Modules are operated at ambient temperatures of > 40 °C and
installation altitudes of > 2000 m, both derating characteristics must be taken into account for
the permissible output power/output current.
A voltage reduction K
accordance with IEC 60664-1. Due to their narrow voltage range, modules with a voltage
range between 500 V and 690 V 3 AC can only be used at altitudes of up to max. 3500 m
above sea level.
Chassis power units
Manual, (GH3), 10/2008, 6SL3097-2AE00-0BP3
Voltage correction factor K
must also be taken into account at installation altitudes of > 2000 m in
U
as a function of the installation altitude
T
System overview
1.4 Derating factors
29