Current Derating As A Function Of The Surrounding Temperature; Torque Derating As A Function Of The Line Voltage - Siemens SINAMICS G115D Operating Instructions Manual

11.1.6.2

Current derating as a function of the surrounding temperature

The permissible converter output current is reduced when the surrounding air temperature is
above 40 ℃.
11.1.6.3

Torque derating as a function of the line voltage

The 2KJ8 asynchronous motor (across all speed ranges) and the 2KJ8 synchronous reluctance
motor (with speed range 1:5 or 1:8.7) operate at 100% rated output torque at a line voltage from
380 V to 480 V. The 2KJ8 synchronous reluctance motor with speed range 1:10 operates at 100%
rated output torque at a line voltage from 420 V to 480 V. The output torque should be reduced
when the line voltage falls outside the range.
Torque derating of 2KJ8 asynchronous motor
Torque derating of 2KJ8 synchronous reluctance motor
SINAMICS G115D Wall Mounted distributed drive
Operating Instructions, 07/2023, FW V4.7 SP14, A5E52808211A AA
11.1 Technical data of the G115D wall-mounted converter
Technical data
419