Festo Кабели и принадлежности - Manual (Page 80)

4. Commissioning
4−35
Festo P.BE−SPC200−SMX−1−EN en 0503b
4.6 Instructions on operation
Take the following instructions and recommendations into
account when programming positioning systems with electric
axes:
Please note
Make sure that all stepping motor axes:
Ĉ always lie within the positioning range defined by the
limit switches when they are switched on and before the
start of reference travel.
Ĉ carry out reference travel when the SPC200 or the stepĆ
ping motor controller is switched on or, if applicable,
after faults.
Stepping motor axes are operated in an open control loop.
Modifications to the position of the axis when the holding
torque is switched off (e.g. stepping motor controller
switched off by EMERGENCY STOP), or lost steps" (e.g.
collision, overload) cannot therefore be taken into account.
Please note
Take into account any functions implemented within the
framework of the EMERGENCY STOP concept in the NC
programs.
Note that not all programming commands of the SPC200 are
valid for electric axes, and that individual programming comĆ
mands for electric and pneumatic axes differ from each other
in their function (see SPC200 manual or WinPISA manual).
Follow the maintenance instructions for the components
used.