When working through a task you may encounter movement errors. It may be unclear on what these errors mean or how to go about solving them so I wanted to provide some clarity on three of our most common Movement Errors, Linear Interpolation Error, Controller Not Following, and Planned Motion Collision.
Linear Interpolation Failed
What's going on: The robot cannot calculate a linear motion between the two points.
- Only use linear moves when necessar
- Keep the distance between linear moves as short as possible.
- If an error is encountered, break the move up into 2 separate moves. The downside is there will be a brief pause between the moves.
- Reduce the linear and rotation acceleration parameters in the Move To node.
For a more detailed post on "Linear interpolation error" check this out
Controller Not Following
What's going on: This most often occurs when the robot comes into contact with an obstruction and cannot proceed.
Possible solution: Follow the arm throughout its task while watching for possible collision locations. If found adjust local moves as necessary.
Planned Motion Collision
What's going on: The robot calculated that its path will encounter a collision with itself Retrain the problematic movement.
Possible solutions: The error will provide a Pose which the Robot has calculated as the problem pose. Begin your troubleshooting at the identified pose.