By Miles Nicholson
When you perform a component cross reference
you may get an Error/Exception Report advising that you have “Too many NO contacts”
Whilst there may be a valid error, there is also the chance that the report may be misleading because there is an unnecessary attribute in a few symbols in the IEC* libraries.
The following symbols in the IEC2, IEC4 and IEC-60617 have the additional and unrequired attribute of CONTACT with a value of NO. You can open these symbols up (File > Open) and remove the value and/or the CONTACT attribute to rectify.
VCB1
VCB11Q9
VCB11Q13
VCB11Q17
VCB11Q29
VCB11Q33
VCB11Q37
VCB11Q41
VCB11Q45
If you have already placed the symbol in your schematic, it can be easily updated using the Swap / Update Blocks command.