Festo Кабели и принадлежности - Manual (Page 327)

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.
Ĉ When mode 7 is activated with command G74, the axis can be moved with the
positioning commands G01 or G02.
Ĉ The speed is limited in each case to the referencing speed (see application data).
Ĉ The acceleration values are
clearly reduced.
Ĉ The status flag REF will not be set.
Ĉ 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
ć here: bearing cover
2
Current position
ć starting position
for reference travel
3
Front stop
ć here: fitted
externally
4
position accepted as
reference point
5
Starting position
6
Interim reference
point: the restricted
movement starts here
1 2 3
Mode 0:
Mode 5:
Mode 6:
Mode 7:
4
5
6
Fig. 7/15: Reference travel modes for the pneumatic axis