Delta Electronics DVP15MC11T - Page 576

Appendix D Explanation of Homing Modes
D
_
Homing depending on the home switch and Z pulse (
: mode 5, : mode 6)
Mode 7~ mode 10 Homing which depending on the home switch, positive limit switch and Z pulse
 Mode 7
Circumstance 1： When the home switch is OFF, MC_Home instruction is executed and the axis moves
in the positive direction at the first-phase speed. The motion direction changes and
the axis moves at the second-phase speed when the home switch is ON. Where the
first Z pulse is met is the home position when the home switch is OFF.
Circumstance 2： When the home switch is ON, MC_Home instruction is executed and the axis moves
in the negative direction at the second-phase speed. Where the first Z pulse is met is
the home position when the home switch is OFF.
Circumstance 3： When the home switch is OFF, MC_Home instruction is executed and the axis moves
in the positive direction at the first-phase speed. The motion direction changes and
the axis moves at the first-phase speed when the home switch is OFF and the positive
limit switch is ON. The axis starts to move at the second-phase speed when the home
switch is ON. Where the first Z pulse is met is the home position when the home
switch is OFF.
6
6
5
5
Z pulse
Home switch
Circumstance 1
Circumstance 2
Circumstance 1
Circumstance 2
Start
point
Start
point
Start point
Start point
Po sitive direction
Positive direction
Negative direction
Negative direction
D-5