Siemens SINAMICS S120/S150 Drive
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Feb 21, 2024 9:02 am
Cause : Overtemperature thermal model (chassis PU) comes when the temperature difference between the chip and heat sink has exceeded the permissible limit value (r0293) (chassis power units only).
- Depending on p0290, an appropriate overload response is initiated.
- See also: r0037, r0293 (Power unit alarm threshold model temperature).
- The alarm disappears automatically once the limit value is undershot.