Lenze E94P PositionServo with MVOB Manual de usuario descargar pdf (Pagina 69)

PM94H201B_13xxxxxx_EN L 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

side 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 the 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.

Index Pulse

(via Input C3)

Homing Switch

(Var_Home_Switch_Input)

Figure 33: Homing Method 9

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Lenze E94P PositionServo with MVOB Manual de usuario Pagina 69