Rockwell-automation MHB44IND Pulse Input and Analogue Output Module Manual do Utilizador descarregar pdf (Página 16)

16

MHB44IND

October

200

5

–

I

ssue 2

Triguard

SC300E

SERVICING

SCOPE

System

repair

is

by

module

replacement.

Faulty

modules

are

not

repairable

in

the

field.

They

should

be

replaced

by

new

modules

and

returned

for

repair.

CAUTI

ON

1

Before

fitting

a new

module

ensure

that

all

the

link

setting

are

the

same

as

that

on

the

old

module.

CAUTION

2

The

module

contains

components

that

may

be

electrostatically

sensitive,

it

should

be

transported

and

stored

in

its

original

packaging

material.

DIAGNOSIS

The

TriBuild

workstation

is

used

for

fault

diagnosis.

In

the

case

of

an

Input/Output

fault,

the

Health

indicator

on

the

faulty

module

will

be

extinguished.

PREPARATION

Use

one

of

the

following

methods

to

ascertain

whether

the

chassis

I/O

s

lot

containing

the

faulty

module

has

been

allocated

a hot

repair

partner:

•

Check

the

system

drawings

• Check

the

chassis

wiring

configuration

• Use

the

I/O

Chassis

Configuration

report

on

the

TriBuild

workstation.

Where

there

is

a hot

repair

partner

allocation,

use

the

‘Dual

-

slot

hot

repair’

procedure.

Otherwise

use

the

‘Single

-

slot

hot

repair’

procedure.

CONFIGURATION

Before

fitting

a new

module

ensure

that

all

the

link

setting

are

the

same

as

that

on

the

old

module.

CAUTION

3

Registers

must

be

initiali

sed

to

100

Hex,

256

Decimal.

Ladder

logic

must

be

used

to

prevent

a value

of

less

than

256

being

written

to

the

outputs

or

the

module

will

lose

health

indication.

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