Example: Cable Reference Direction - No Installation
Consider an example where a cable path is created, but with no geometry present in the model.
The Cable reference direction is defined normal to a fictitious ground (in the “up” direction). No twist angle is defined along the cable path.
The cable cross section orientation is indicated by:
- dotted green line: v vector
- blue line: u vector
- solid dark green line: cable reference direction
Note: CADFEKO tries to orientate the
v
vector at the start of the cable path to align
with the cable reference direction automatically using the constraint that the
u
and
v
vector must be perpendicular to the cable path.
When using the cable reference direction with no installation present, the following
is required in the cable harness and schematic view:
- No bonding impedances are allowed in the harness, for example, no termination / interconnect circuit connections to the installation.
- All paths should at least have two signals in the outermost problem to create a return path.
- All paths in the harness should have an orientation vector defined (if that path does not have any nearby geometry / installation).