Delta Electronics DVP10MC11T [354/375] Appendix d

Appendix D

DVP-MC operating manual D-1

Appendix D Explanation of Homing Modes

DVP10MC11T provides many homing modes from which user can choose the appropriate one in accordance

with on-site condition and technical requirement.

 Mode 1 Homing which depends on the negative limit switch and Z pulse.

Circumstance 1: MC_Home instruction is executed and the axis moves in the negative direction at the

first-phase speed when the negative limit switch is OFF. The motion direction changes and

the axis moves at the second-phase speed when the axis encounters that the negative limit

switch is ON. Where the first Z pulse is met is the home position when the negative limit

switch is OFF.

Circumstance 2: MC_Home instruction is executed and the axis moves in the positive direction at the

second-phase speed when the negative limit switch is ON. Where the first Z pulse is met is

the home position when the negative limit switch is OFF.

Circumstance 1

Circumsta nce 2

Sta rt point

Positive direction

St art point

Z pulse

Negative limit switch

Homing on the negative limit switch and Z pulse (

: mode 1)

 Mode 2 Homing which depends on the positive limit switch and Z pulse

Circumstance 1: MC_Home instruction is executed and the axis moves in the positive direction at the

first-phase speed when the positive limit switch is OFF. The motion direction changes and

the axis moves at the second-phase speed when the axis encounters that the positive limit

switch is ON. Where the first Z pulse is met is the home position while the positive limit

switch is OFF.

Circumstance 2: MC_Home instruction is executed and the axis moves in the negative direction at the

second-phase speed when the positive limit switch is ON. Where the first Z pulse is met is

the home position while the positive limit switch is OFF.