Lenze PM94P01C - Manual (Page 76)

PM94P01C 74
Programming
2.15.9.16 Homing Method 18: Homing without an Index Pulse
Method 18 is similar to method 2, except that the home position is not dependent on the index pulse but only on the
Positive limit switch translation.
Using this method the initial direction of movement is positive. The home position is the leading edge of the Positive
limit switch.
Axis will accelerate to fast homing velocity in the positive direction and continue until Positive Limit Switch (A2) is
activated (rising edge) shown at position A. Axis then decelerates to zero velocity.
If the positive limit switch is already active when the homing routine commences then this initial move is not executed.
Axis will then accelerate to fast homing velocity in the negative direction. Motion will continue until the falling edge of
the positive limit switch is detected (position B), where the axis will decelerate to 0 velocity.
Axis will then accelerate to slow homing velocity in the positive direction. Motion will continue until the rising edge of the
positive limit switch is detected (position C), where the axis will decelerate to 0 velocity.
Axis will then accelerate to slow homing velocity divided by 100 in the negative direction. Motion will continue until the
falling edge of the positive limit switch is detected (position 18). This is the home position (excluding offset).
A
B
18
C
Positive Limit Switch
(Input A2)
Figure 40: Homing Method 18