Lenze PM94P01C - Manual (Page 69)

PM94P01C 67
Programming
2.15.9.9 Homing Method 9: Homing on the Home Switch & Index Pulse
Using this method the initial direction of movement is positive. The home position is the first index pulse to the negative
of the position where the homing switch becomes inactive on its negative edge.
Axis will accelerate to fast homing velocity in the positive 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 negative 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 9) is detected.
NOTE: if the axis is on the wrong side of the homing switch when homing is started then the axis will move positive until
it contacts the positive limit switch (A2). Upon activating the positive limit switch the axis will change direction (negative)
following the procedure as detailed above but ignoring the initial move in the positive direction.
A
B
9
A
B
9
Index Pulse
(via Input C3)
Homing Switch
(Var_Home_Switch_Input)
Figure 33: Homing Method 9