User Manual

7. Description of the commands
7−61
Festo P.BE−SPC200−EN en 0901d
Mode Description
7 This mode serves exclusively for moving the pneumatic axis slowly and program−
controlled, providing referencing has not taken place.
 When mode 7 is activated with command G74, the axis can be moved with the
positioning commands G01 or G02.
 The speed is limited in each case to the referencing speed (see application data).
 The acceleration values are clearly reduced.
 The status flag REF will not be set.
 After completion of the movement in mode 7, reference travel must take place with
mode 0, 5 or 6 in accordance with the application data. Only then can the maximum
dynamics of the axis be reached again.
This mode
can be used, e.g. for moving an axis manually but program−controlled into a
defined starting position, if this cannot take place automatically due to obstructions in
the positioning path.
1 Rear stop
 here: bearing cover
2 Current position
 starting position
for reference travel
3 Front stop
 here: fitted
externally
4 position accepted as
reference point
5 Starting position
6 Interim reference
point: the restricted
movement starts here
123
Mode0:
Mode5:
Mode6:
Mode7:
4
5
6
Fig.7/15: Reference travel modes for the pneumatic axis