Festo SFC-DC series, Manual

Page: 96 / 202

5. Commissioning
5−12
Festo P.BE−SFC−DC−IO−EN en 0801a
Notes on referencing to the reference switch
If reference travel to a mechanical end position is not possible
in the application, an external sensor (reference switch) can
be used as reference signal (see also chapter 1.1.3).
Referencing method Reference switch"
Reference switch, negative (near motor)
1
2
REF AZ
+
Reference switch, positive (remote from motor)
1
2
REF AZ
1
Slide moves at search speed v_rp to the reference switch and
reverses. After leaving the switching range of the reference
switch, the slide moves to the next index signal of the encoder
for determination of the reference point.
2
After that, the slide moves at speed v_zp from the reference
point to the axis zero point.
Tab.5/3: Referencing to reference switch