Fault codeA30502
The power unit detected overvoltage in the DC link due to excessive voltage or incorrectly sized line reactor. The manual lists no action for this code.
- Model
- Siemens CU240B/E-2
- Display shows
- Power unit: DC link overvoltage (A30502)
- Type
- Fault code
- Source
- Manual p. 720
What A30502 means
Power unit: DC link overvoltage p. 720
Common causes
- The power unit has detected overvoltage in the DC link on a pulse inhibit. p. 720
- - device connection voltage too high. p. 720
- - line reactor incorrectly dimensioned. p. 720
- Fault value (r0949, decimal interpretation): p. 720
- DC link voltage [1 bit = 100 mV]. p. 720
- See also: r0070 (Actual DC link voltage) p. 720
If A30502 is still not resolved
The manual gives no further instruction for this code. Open the code table in the PDF or contact Siemens service.
This page summarises what the manufacturer’s manual says about A30502; 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.