A01513 alarm in siemens 6RA80 DC Drive indicate that the Interconnection cross DO with different scalings. This means the requested BICO interconnection was established. However, a conversion is made between the BICO output and BICO input using the reference values.

• An interconnection is made between different drive objects and the BICO output has different normalized units than the BICO input or the normalized units are the same but the reference values are different.