User Guide

Relay:CoilandFirstContactmustbePlaced
A relay with three contacts is to be designed, of which typically only the
firstcontactwillbeused.
Define the coil and one contact as their own symbols. In the device, give
the coil and the first contact the addlevel Must. All the other contacts
aregiventheaddlevel Can.
Relaywithonecoilandthreecontacts
If the relay is fetched into the schematic with the ADD command, the
coil and the first contact are placed. If another contact is to be placed,
this can be done with the INVOKE command. The coil cannot be de
-
leted on its own. It disappears when all the contacts have been deleted
(beginningwiththosedefinedwithaddlevel Can).
Connector:SomeConnectionSurfacescanbe
Omitted
A pcb connector is to be designed in which normally all the contact ar
-
eas are present. In some cases it may be desirable for some of the con
-
tactareastobeomitted.
Define a package with 10 SMDs as contact areas, giving the SMDs the
names1to10.
175
ComponentDesignExplainedthroughExamples