# User interface

The user interface (5), see figure C, is used to preselect the mode.

## Preselecting the Mode

With the mode button (11), you can preselect the required speed in three stages.

Press the mode button (11) as often as needed until the required setting is indicated in the mode indicator (12).

The required speed depends on the material and the working conditions; it can be ascertained through practical tests.

Note: The graphic for preselecting the mode is for reference and does not show the actual values.