Lenze PM94P01C - Manual (Page 73)

PM94P01C 71
Programming
2.15.9.13 Homing Method 13: Homing on the Home Switch & Index Pulse
Using this method the initial direction of movement is negative. The home position is the first index pulse to the positive
of the position where the homing switch becomes inactive on its positive edge.
Axis will accelerate to fast homing velocity in the negative direction and continue until Homing Switch (selectable via
Var_Home_Switch_Input Variable) is deactivated (falling edge) shown at position A. Axis then decelerates to zero
velocity.
If the homing switch is already active when the homing routine commences then this does not effect this mode of
homing as the procedure is searching for falling edge of homing switch in both cases.
Axis will then accelerate to fast homing velocity in positive direction. Motion will continue until first the rising edge of the
Homing switch is detected (position B) and then the rising edge of the first index pulse (position 13) is detected.
NOTE: if the axis is on the wrong side of the homing switch when homing is started then the axis will move negative until
it contacts the negative limit switch (A1). Upon activating the negative limit switch the axis will change direction (positive)
following the procedure as detailed above but ignoring the initial move in the negative direction.
A
B
A
B
13
13
Index Pulse
(via Input C3)
Homing Switch
(Var_Home_Switch_Input)
Figure 37: Homing Method 13