Axis AX-906 Guide de l'utilisateur télécharger pdf (Page 18)

74

AX

DRIVE USER GUIDE

PLe

Operation

PLC

Connections

Scanning

for

Sequence

Execution

You

can

use

a

PLC

to execute 7 different sequences

that

are

stored

in

the

AX

non-volatile memory.

Three

outputs

from

the

PLC

can

be

used

to execute sequences,

and

two

inputs

to

the

PLC

can

be

used

to

monitor

AX

outputs.

Assuming

your

PLC

accepts

open-emitter

outputs,

connect

the

inputs

and

outputs

as

shown

in

Figure 4-4.

If

not, contact a

Compumotor

Applications

Engineer

at

(800)

358-9070.

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PLC

AX

110

CONNECTOR

(Pins 12 - 16)

Figure 4-4.

PLC

Connections

Changing

the

BCD

values

of

sequence

input

lines

results

in

a

new sequence

being

run

that

corresponds to

the

new value.

As

indicated

in

Table

4-2,

the

configuration of

the

values

issued

determines

which

sequence

the

indexer

will

run.

For

example,

turning

on

SEQ2

and

SEQ3

and

turning

off SEQ 1

executes Sequence 2.

Issuing the XP8

or

the

XP9

conunands

causes

the

AX

to

scan

the

sequence select

inputs

and

execute

the

fist valid sequence

it

encounters

(on power-up).

When

in

XP8 mode,

the

AX

returns

control to

the

RS-232C

port

after executing

the

first

valid sequence.

When

in

the

XP9 mode.

the

AX

will

continue

scanning

inputs

and

executing valid

sequences

until

you

issue

an

S

or

a K command.

When

you

issue

the

XP

command

identifying

sequences

1 - 7,

this

over-rides

the

sequence

input

configuration

used

when

you

issue

the

XP8

and

the

XP9

commands.

The

Scan

(SN)

command

determines

how long

the

sequence

select

input

must

be

maintained

before

the

indexer executes

the

program.

This

is a

debounce

time.

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 24

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