Rockwell Automation MAO04NND Manuale utente

Triguard

SC300E

MAO04NND

Analogue Output Module

(MAO04NND)

Issue

October

2005

INTRODUCTION

PURPOSE

The

Channel

Analogue

Output

Module

MAO04NND

(Figure

provides

analogue

output

signals.

The

module

arack

mounted,

high

unit

that

provides

the

output

control

interface

between

the

SC300E

processing

environment

and

the

user

field

environment.

has

four

current

loop

output

channels.

All

field

outputs

are

galvanically

isolated

from

the

SC300E

system

but

have

common

supply

connection.

Circuit

triplication

and

voting

procedures

make

the

module

single

fault

tolerant

and

latent

testing

ensures

that

the

failure

achannel

will

recognised

and

reported

the

SC300E

system.

Front

panel

indicators

show

the

state

the

circuit

‘on

line’

status

and

the

health

the

module.

Sockets

are

provided

the

front

panel

for

monitoring

the

outputs.

The

module,

which

compatible

with

‘dual

slot

hot

repair’,

can

fitted

any

the

ten

I/O

slots

the

SC300E

chassis.

‘Wrong

slotting’

prevented

physical

coding.

The

SC300E

system

software

identifies

the

module

via

abuilt

hardware

identifier.

Channel

outputs

leave

the

module

via

the

DIN

41612

‘rear

plug

up’

system

the

chassis

backplane.

This

document

intended

provide

ageneral

understanding

the

function

the

module

sufficient

enable

basic

maintenance

operations

effected

the

field.

ASSOCIATED DOCUMENTATION

Reference

Title

008

5097

Chassis

User

Manual

008

5104

PDD24

Power

Distribution

Panel

User

Manual

008

5201

TPH44AIC

Channel

Pulse

Input

and

Analogue

Output

Termination

Card,

User

Manual

008-5203

MAO04NND

Octrober

200

–

Issue 1

Triguard

SC300E

MAO04NND

October

200

–

Issue 1

Triguard

SC300E MAO04NND Analogue Output Module

Figure

1General

view

and

front

panel

detail

Mechanical

coding

Block

(Upper)

Links

JP1

JP4

Links

LK1

LK3

Connector

Common

Interface

(CI)

Module

Connector

Mechanical

coding

block

(Lower)

MAO04NND

Octrober

200

–

Issue 1

Triguard

SC300E

SPECIFICATION

Model

MAO04NND

Channels

Architecutre

TMR

Indicators

Health,

3 x On

Line

Test

points

4 x signal,

1 x common

Output

range

0to

22mA

Maximum

resistive

field

load

400

ohm

Resolution

6.25 µAsteps

Accuracy

@25

C+

0.2%

full

signal

range

Maximum input ripple voltage @ 24V field supply

12V

peak

Maximum

input

frequency

120HZ

Stability

(temperature

coefficient)

15ppm/

Isolation

1KV

between

field

and

system,

commoned

supply

Field

power

supply

Volgate

range

+18Vdc to 30Vdc

Module

power

consumption

5.5W

Overall size (mm)

Overall

size

(inches)

400(9U)H x 397L x 28W

15.75H x 15.63L x 1.1W

Weight

1.4kg

ENVIRONMENTAL

SPECIF

ICATIONS

The

maximum

ambient

temperature

measured

the

hottest

point

within

the

Triguard

system

shall

not

greater

than

degrees

centigrade.

Temperature

operating:

+5°C

+60°C

Temperature

storage:

25°C

+70°C

Humidity

95%

non

condensing

ambient

<40°C

EMC/RFI

Immunity

Tested

and

certified

IEC

1131

Part

21994

Vibration/Shock

Tested

and

certified

IEC

1131

Part

21994

Certification:

General

Certification:

Ref.

SC300E

TMR

Product

Guide

(ref

008

5209).

MAO04NND

October

200

–

Issue 1

Triguard

SC300E MAO04NND Analogue Output Module

MAO04NND

Octrober

200

–

Issue 1

Triguard

SC300E

TRANSPORT AND HANDLING

The

MAO04NND

must

transported

and

stored

its

original

packing

material

which

should

retained

for

this

purpose.

MAO04NND

October

200

–

Issue 1

Triguard

SC300E MAO04NND Analogue Output Module

TECHNICAL

DESCRIPTIO

PHYSICAL

The

MAO04NND

a9U

high

PCB

with

integral

front

panel

and

rear

connectors.

Aplug

daughterboard

carries

the

common

interface

circuits.

Figure

1show

sthe

general

layout,

including

the

location

the

connectors,

covers

and

configuration

links.

The

front

panel

provides

the

following:

Three

‘On

Line’

indicators

A‘Health’

indicator

On/Off

line

request

switch

Five

test

jacks

line

and

acommon)

for

monitoring

the

output

lines.

NOTE

Each

monitor

point

gives

0to

5.5Vdc

negative

with

respect

common,

determining

the

current

flowing

the

corresponding

0to

output.

Each

monitor

point

has

a10k

ohm

resistance

series

prevent

malfunction

the

monitor

point

short

circuited

ahigh

input

resistance

meter

required

for

accurate

readings.

MECHANICAL CODING BLOCKS

All

Input/Output

modules

carry

two

mechanical

coding

blocks

equipped

with

pins

which

mate

with

holes

corresponding

blocks

the

chassis

and

prevent

the

module

being

inserted

into

the

wrong

slot.

The

pins

the

module

blocks

are

factory

installed

apattern

determined

the

module

and

corresponding

set

screws

are

removed

from

the

chassis

coding

blocks

enable

fitti

ng.

Unused

holes

are

plugged

with

set

screws.

The

chassis

coding

block

configuration

for

this

module

shown

Figure

1Chassis

mechanical

coding

block

configurations

MAO04NND

Octrober

200

–

Issue 1

Triguard

SC300E

EXTERNAL

CONNECTIONS

All

connections

the

MAO04NND

are

made

via

DIN

41612

connectors.

The

upper

connector

the

system

triple

I/O

bus

connector.

The

middle

connector

for

the

field

inputs

and

outputs.

The

lower

connector

electrically

parallel

with

the

middle

connector.

System

interface

This

MAO04NND

acts

aslave

the

MPP

masters,

and

communication

between

three

MPPs

and

the

MAO04NND

takes

place

over

the

triplicated

bit

parallel

I/O

MPP

buses

that

run

along

the

chassis

mounted

backplane.

The

three

I/O

MPP

buses

are

connected

via

the

module’s

upper

system

interface

DIN

41612

connector.

Field

interface

The

MAO04NND

outputs

and

feedback

connections

are

wired

via

one

the

connectors

(J2

J3)

the

termination

card

TPH44AIC.

Current

loop

outputs

Four

0to

22mA

with

common

return.

The

termination

card

has

aprecision

resistor

for

each

channel

control

the

current.

This

allows

two

modules

used

for

dual

slot

hot

repair

purposes

using

the

same

termination

card.

CONFIGURATION LINKS

The

module

contains

ahardware

identity

circuit

that

enables

system

identification

the

module,

and

seven

manual

configuration

links,

JP1

JP4

and

LK1,

LK2

and

LK3.

Links

JP1

JP4

and

LK1

LK3

Links

JP1

JP4

enable

undercurrent

and

overcurrent

monitoring

from

aspecial

termination

card

giving

galvani

cally

isolated

outputs.

Links

JP1

JP4

must

set

the

Off

position.

Links

LK1

LK3

are

described

Section

2.6,

Theory

operation.

POWER SUPPLIES

The

MAO04NND

operates

from

dual

power

inputs

supplied

the

system’s

dual

redundant

PSUs,

that

ach

supply

voltages

approximately

5.4Vdc

and

12Vdc.

MAO04NND

October

200

–

Issue 1

Triguard

SC300E MAO04NND Analogue Output Module

THEORY OF OPERATION

The

module

has

four

22mA

current

output

channels

using

acommon

24V

supply

via

termination

card

TPH44AIC.

The

circuits

are

triplicated

except

for

the

final

combining

the

ana

logue

output

stages

into

single

voted

output.

Common functions

Power

supplies

and

monitoring

The

and

12V

dual

redundant

supplies

from

the

backplane

are

diode

OR’ed

the

three

channels

plus

auxiliary

section.

The

analogue

output

section

isolated

dc/dc

converters

providing

+5V

and

±15V.

All

the

supplies

and

fuses

are

monitored

the

CI.

On/Off

Line

Request

switch

the

front

panel

enables

arequest

sent

the

MPPs

that

the

module

taken

off

line

for

maintenance

purposes

retu

rned on

line.

Mode

settings

The

module

contains

ahardware

identity

circuit

that

enables

system

identification

the

module,

and

seven

configuration

jumper

links

(JP1to

JP4

and

LK1

LK3).

The

jumper

links

JP1,

JP2,

JP3

and

JP4

must

set

the

Off

position.

The

operation

and

settings

links

LK1

LK3

described

below:

Link

1allows

the

module

set

for

321

320

mode

operation

which

sets

the

threshold

that

determines

how

much

the

circuit

can

degraded

while

still

preserving

overall

operation.

320

mode

means

that

the

system

will

continue

function

with

two

out

three

serviceable

circuits.

the

number

falls

one

out

three

the

last

read

data

maintained.

321

mode

the

system

will

continue

function

with

one

out

three

serviceable

circuits.

that

fails

the

last

read

data

maintained

and

the

module

taken

off

line.

Link

2(HLV/GTZ)

determines

whether,

the

event

afailure

due

321/320

action,

the

last

read

values

are

held

(HLV)

are

set

zero

(GTZ).

3is

always

set

HW.

Latent

fault

detection

(LFD)

outputs

The

voted

analogue

voltage

outputs

from

each

channel

are

compared

turn

with

the

outputs.

The

LFD

scheme

employed

change

each

channel’s

output

turn

0.4V

for

1ms,

first

negatively

then

positively,

leaving

the

other

channels

unchanged.

each

change,

the

discrepancy

between

every

channel

and

the

common

output

tested

awindow

comparator.

adifference

detected

the

deviated

channel

and

the

other

two

are

'same'

then

latent

fault

detected

and

the

Health

LED

illuminated.

MAO04NND

Octrober

200

–

Issue 1

Triguard

SC300E

Voting

operates

that

the

LFD

deviations

not

appear

the

combined

output.

afault

causes

health

fail,

further

LFD

testing

performed.

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