Current And Voltage Derating Dependent On The Installation Altitude; Current And Power Limiting Depending On The Line Voltage - Siemens sinamics g120 Hardware Installation Manual

6.3.2

Current and voltage derating dependent on the installation altitude

Current derating depending on the installation altitude
Above 1000 m above sea level you must re-
duce the inverter output current corresponding
to the adjacent curve as a result of the lower
cooling power of the air.
Permissible line supplies depending on the installation altitude
● Installation altitude up to 2000 m above sea level
– Connection to every supply system permitted for the inverter.
● Installation altitudes between 2000 m and 4000 m above sea level
– Connection to a TN system with grounded neutral point.
– TN systems with grounded line conductor are not permitted.
– The TN line system with grounded neutral point can also be supplied using an
– The phase-to-phase voltage does not have to be reduced.
Also observe restrictions related to the connection of components.
6.3.3

Current and power limiting depending on the line voltage

Current and power limiting depending on the line voltage
Power Module PM230, IP20 / Push-through technology (PT)
Hardware Installation Manual, 06/2014, A5E34331322B AA
isolation transformer.
Technical specifications
6.3 Restrictions for special ambient conditions
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