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This article will cover some of the main issues faced when performing automated cabling with PVcase.

First and foremost, knowing how algorithms work is essential for efficient workflow and troubleshooting. 

Automatic cabling works by finding the nearest trenchlines (if several are selected) and uses them as a path to the higher tier device. 

If there is more than one path optional, the software will draw the cables through the shortest possible path it can find.

Examples of the cabling operating principle:

In the above GIF you can see that we selected 2 trenchlines but PVcase chose to run the cables through the trenchline which is closer to the devices.

In the example below, several trenchlines (marked in black) were selected to give the software options for cabling.

Cabling generation for DC and AC cables run through the shortest route. Therefore, devices that are by the road were connected through the trench which is by the road:

Devices besides the vertically aligned frames were connected via trenchline by the next to these frames:

Troubleshooting tips.

1. PVcase does not use the trenchline you wanted it to use.

When the software is expected to connect more than one substation/central inverter in one go, it can sometimes use trenchlines that you originally wanted to use for another substation or central inverter. The solution to this is to simplify the guessing process for the software and cable fewer areas or even one at a time:

2. Cabling for some devices not possible. Please check if intersection with trenchlines is possible for all devices.

This error means that devices could not be connected with cable polylines because the trenchline is either too far away or cannot be located from the device location when it's checking left or right of itself for a trenchline. The solution is to check whether all trench polylines reach all electrical devices and if not extend.

3. Software doesn't use the intended trench polyline as a path.

3a. Trench polylines are not intersecting with each other:

Important:
Trench polylines need to be connected together using AutoCAD Object snap functionality.
For instance, when drawing polylines you would have to attach them to one another using - Endpoint, Midpoint, Intersection, Perpendicular, Nearest.

3b. Trenchline consists of several different polylines and one of them runs all the way to substation/central inverter.

Sometimes when several different polylines are regarded as trenches, PVcase will generate cabling based on the trenchline that runs to the substation continously, which may not be the desired or shortest path from the user side:

The solution is to make PVcase check other paths by making intersections with other trench polylines. This can be done by simply segmenting this polyline:

This results in cables running as intended:

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