Festo Кабели и принадлежности - Manual (Page 89)

5. Diagnosis and error treatment
5−8
Festo P.BE−SPC200−SMX−1−EN en 0503b
5.5 Emergency travel
If a limit switch is actuated, the axis can be pushed manually
into the positioning range again when the stepping motor
controller is switched off.
Alternatively, an axis can be moved into the positioning range
again with the function Emergency travel."
Caution
Movement outside the limit switches may result in a
collision.
When the device is switched on, the axis must lie within
the limit switches.
The function Emergency travel" may only be used if a limit
switch has been actuated as a result of manual positioning
or due to a program fault during the commissioning phase.
Emergency travel procedure
When the function Emergency travel" is started, the axis
moves out of the range of the actuated limit switch in the
direction of the positioning range of the axis. The axis moves
until the switching range of the limit switch is left, however for
max. 2 s (e.g. in the event of cable fracture in the limit switch
cable).
Please note
Before starting emergency travel, make sure you underĆ
stand the function of the limit switches.
Note that the limit switch opposite cannot be recognized
during emergency travel.