The rectifier temperature has exceeded its alarm threshold, possibly due to ambient heat or fan failure. The manual's first action is: “Check the following: - is the ambient temperature within the defined limit values? - have the load conditions and the load duty cycle been appropriately dimensioned? - has the fan failed? Check the direction of rotation. - has a phase of the line supply failed? - is an arm of the supply (incoming) rectifier defective?”
- Model
- Siemens G120C
- Display shows
- Power unit: Overtemperature thermal model (A05006)
- Type
- Fault code
- Source
- Manual p. 697
What A05006 means
Power unit: Overtemperature thermal model p. 697
Common causes
- The alarm threshold for the overtemperature of the rectifier has been reached. The response is set using p0290. p. 697
- If the temperature of the rectifier increases by an additional 5 K, then fault F30037 is triggered. p. 697
- The temperature difference between the chip and heat sink has exceeded the permissible limit value (blocksize power units only). p. 697
- Depending on p0290, an appropriate overload response is initiated. p. 697
What to do
- Check the following: - is the ambient temperature within the defined limit values? - have the load conditions and the load duty cycle been appropriately dimensioned? - has the fan failed? Check the direction of rotation. - has a phase of the line supply failed? - is an arm of the supply (incoming) rectifier defective? p. 697
- See also: r0037 (Power unit temperatures) p. 697
Before you service the product, read the safety instructions in the manual p. 4.
If A05006 is still not resolved
This page summarises what the manufacturer’s manual says about A05006; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.