beautypg.com

Operation position i/o assignments, Operation flow chart – IAI America SSEL User Manual

Page 288

background image

266

Part 2 Programs

(2) Explanation of the operation

[1] Wait for the axis-1 movement pushbutton switch to turn ON.
[2] The X-axis moves while the pushbutton switch is ON, and stops when the switch turns OFF.
[3] Wait for the axis-2 movement pushbutton switch to turn ON.
[4] The Y-axis moves while the pushbutton switch is ON, and stops when the switch turns OFF.
[5] Output a start command to the hand control unit.
[6] Wait for an operation completion input from the hand control unit.
[7] Move to the home after the input is received.

The above operation will be repeated. The operation position, external I/O assignments and operation flow
chart of this operation are shown below:

Operation Position

I/O Assignments

Category

I/O No.

Signal name

Specification

16

Axis-1 movement
command

Pushbutton switch

17

Axis-2 movement
command

Pushbutton switch

Input

18

Hand operation
completion

External control unit

Output 307

Hand start
command

24 VDC

X-SEL

* Flag is not used.

Operation Flow Chart

Operation home

Arbitrary distance

Arbitrary
distance

Axis

2

Hand control unit

Axis 1

Start

Axis 1

switch ON

Axis 1 operates in forward

direction

Axis 1

switch OFF

Axis 1 stops

Axis 2

switch ON

Axis 2 operates in forward

direction

Axis 2

switch OFF

Axis 2 stops

Hand-control-unit start

command ON

Complete

Hand-control-unit start

command OFF

Move to home position

N

N

N

N

N

Y

Y

Y

Y

Y