Delta MMC120 Manuel d'utilisateur télécharger pdf (Page 42)

support, but also holds bits 16 and 17 of the current count. Therefore, if you are using a

long enough MDT and are using counts above 65535, then you can combine the two

fields to find the actual counts at each point on the graph.

Sum of Errors Squared

This field is computed by summing the squares of the position error for each time unit on

a graph. The lower this value, the closer the actual position curve tracked the target

position curve. The numerical value displayed in this field has no meaning by itself, but

it can be used during tuning to check whether a tuned parameter was helpful or harmful

to the tracking of the position. In order to have a valid comparison the two graphs must

have the same length, and the moves need to have had the same target profile.

Otherwise, the changed parameter is not isolated in the test.

Table Editors

Table Editor Basics

Starting a Table Editor

To start an editor, from the Tools menu, click the desired editor. Notice that each editor

also has a shortcut key that can be used to start the editor. These are displayed in the

menu.

When the table editor is opened, the following steps will be taken:

1.For the tables other than the Stored Command table: if a motion controller is connected

to the monitor, the table will be read from the module.

2. If a motion controller is not connected to the monitor, the table will be read from a

file. The filename used is given by the board filename, with the appropriate extension

appended.

3. If a motion controller is not connected to the monitor and the table could not be read

from disk, then default values will be filled into the table.

Exiting an Editor

To close an editor, use one of these methods:

• Press ESC.

• On the File menu, click Exit.

• Click the Close button.

If changes have been made to the table that have not been saved to a file or downloaded

to the motion controller you will be prompted to do so upon exit. You will always be

given the option of exiting without saving.

Editing the Tables

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Delta MMC120 Manuel d'utilisateur Page 42