CHAPTER 4 PARAMETER

The motion proceeds in the following procedure.

(1) The motion starts at the rising edge (OFF → ON) of homing [ORG] in the starting direction for

homing (PA2_08) at the homing speed (PA2_06).

(2) Upon detection of the home position LS (PA2_12, PA2_13), the motion reverses in the

direction opposite to the homing direction after reference signal detection (PA2_10) to the

point ahead of the home position LS (PA2_12).

(3) The motion changes in the homing direction after reference signal detection (PA2_10) to

detect the home position LS (PA2_12, PA2_13), and it changes to the creep speed for homing

(PA2_07) by the home position shift unit amount (PA2_14), followed by stoppage. The

stopping point changes to the home position and homing completion is turned on and the

homing process is finished.

Home position shift unit amount

4

(1)

(2)-2 (2)-1 (3)

-OT

Starting direction for homing

Homing direction after

reference signal detection

Home

position LS

Home

position

+OT

+

Speed

(1)

Homing speed [PA2_06]

Homing creep speed [PA2_07]

(3)

(2)

Home position shift unit

amount [PA2_14]

Time

-

Servo-on [S-ON]

OFF

ON

Position control

OFF

Homing [ORG]

OFF ON

Home position LS [LS]

OFF

ON

OFF

ON ON OFF

Controller,

sensor

↓

Servo

ON OFF amplifier

Ready for servo-on

OFF

ON

Homing LS detection

Homing completion

Zero speed

ON

OFF ON ON OFF ON

OFF

Servo

OFF

ON amplifier

↓

ON OFF ON OFF ON Controller

In-position

[INP]

ON

OFF

ON OFF ON OFF ON

 At the rotation direction selection point with zero speed, zero speed and in-position [INP] are

momentarily turned on. The signal change may fail to be sensed according to some scanning

periods of the host controller.

Automatic Operation Setting Parameter 4-61