Festo Электромотор MTR-DCI - Manual (Page 47)

1. System overview
1-25 Festo P.BE-MTR-DCI-DN-EN en 1209a
Search for reference switch In this homing method the drive initially moves at a search
speed in a negative or positive direction until it reaches the
limit switch. It then moves back at creep speed: The refer-
ence position lies at the point at which the reference switch
becomes inactive again when the drive moves back.
REF (-) AZ
REF (+)
1
2
AZ
+
—
1
Reference switch in negative direction
2
Reference switch in positive direction
Fig. 1/6: Homing methods “Search for reference switch”
If the drive is already at the reference switch when started, it
moves in the opposite direction to the reference switch. Then
the drive runs as usual to the axis zero point.