Festo Электромотор MTR-DCI - Manual (Page 46)

1. System overview
1-24
Festo P.BE-MTR-DCI-DN-EN en 1209a
Search for fixed stop In this homing method the drive initially moves at a search
speed in a negative or positive direction until it reaches the
fixed stop. A rise in the motor current signals that the stop
has been reached. When the maximum motor current is
reached at the same time as the motor is at a standstill, the
MTR-DCI recognizes that the stop, and therefore the refer-
ence position, has been reached.
As the axis should not stand still at the stop, the axis zero
point offset must be ≠ 0 (min. 0.25 mm).
+
—
REF (-)
AZ
REF (+)
1
2
AZ
1
Stop in negative direction
2
Stop in positive direction
Fig. 1/5: Homing methods “Search for fixed stop”