Alarm codeA7805
Power unit overload I²t when the alarm threshold for power unit overload has been exceeded. The manual's first action is: “Reduce the continuous load.”
- Model
- Siemens SINAMICS V90, SIMOTICS S-1FL6
- Display shows
- Power unit overload I²t (A7805)
- Type
- Alarm code
- Source
- Manual p. 311
What A7805 means
Power unit overload I²t p. 311
Common causes
- Alarm threshold for Pt overload of the power unit exceeded. p. 311
What to do
- Reduce the continuous load. p. 311
- Adapt the load duty cycle. p. 311
- Check the assignment of the rated currents of the motor and motor module. p. 311
Before you service the product, read the safety instructions in the manual p. 2.
If A7805 is still not resolved
- Contact service / dealer for assistance p. 2 “Qualified Personnel The product/system described in this documentation may be operated only by personnel qualified for the specific task in accordance with the relevant documentation, in particular its warning notices and safety instructions.”
- Contact service / dealer for assistance p. 13 “NOTICE Property damage due to loose power connections Insufficient tightening torques or vibration can result in loose power connections. This can result in damage due to fire, device defects or malfunctions.”
This page summarises what the manufacturer’s manual says about A7805; 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.