Miller Electric SCE-1A Specifications download pdf (Page 5)

SECTION

1

-

INTRODUCTION

Dime

Height

nsions

(Inches)

Width

Depth

Weight

Net

(Pounds)

Shipping

33-1/4

26-1/4

10-3/4

168

230

Figure

1-1.

Specifications

1-1.

GENERAL

This

manual

has

been

prepared

especially

for

use

in

familiar

izing

personnel

with

the

design,

installation

operation,

main

tenance,

and

troubleshooting

of

this

equipment.

All

informa

tion

presented

herein

should

be

given

careful

consideration

to

assure

optimum

performance

of

this

equipment.

1-2.

RECEIVING-HANDLING

Prior

to

installing

this

equipment,

clean

all

packing

material

from

around

the

unit

and

carefully

inspect

for

any

damage

that

may

have

occurred

during

shipment.

Any

claims

for

loss

or

damage

that

may

have

occurred

in

transit

must

be

filed

by

the

purchaser

with

the

carrier.

A

copy

of

the

bill

of

lading

and

freight

bill

will

be

furnished

by

the

carrier

on

request

if

occasion

to

file

claim

arises.

When

requesting

information

concerning

this

equipment,

it

is

essential

that

Model

Description

and/or

Stock

Number

and

Serial

(or

Style)

Numbers

of

the

equipment

be

supplied.

1-3.

DESCRIPTION

These

Sequence

Controls

are

specifically

designed

to

be

used

in

conjunction

with

an

electric

current

controlled

welding

power

source.

These

Sequence

Controls

provide

five

different

sequences

for

either

automatic

or

semi-automatic

operation

of

the

various

welding

processes.

The

function

of

each

sequence

is

described

in

Section

3,

FUNCTION

OF

CON

TROLS,

in

this

manual.

The

SCE

Models

are

equipped

with

electronic

timers

in

sequences

B,

C,

and

D.

The

SCM

Models

are

equipped

with

mechanical

timers

in

sequences

B,

C,

and

D.

1-4.

SAFETY

Before

the

equipment

is

put

into

operation,

the

safety

sec

tion

at

the front

of

the

welding

power

source

or

welding

generator

manual

should

be

read

completely.

This

will

help

avoid

possible

injury

due

to

misuse

or

improper

welding

applications.

The

following

definitions

apply

to

CAUTION,

IMPORTANT,

and

NOTE

blocks

found

throughout

this

manual:

sonnel.

I

IL

1

U

.

Under

this

heading,

installation,

operating,

and

main

tenance

procedures

or

practices

will

be

found

that

if

not

carefully

followed

may

result

in

damage

to

equip

ment.

NOTE

Under

this

heading,

explanatory

statements

will

be

found

that

need

special

emphasis

to

obtain

the

most

efficient

operation

of

the

equipment.

SECTION

2

-

INSTALLATION

2-1.

ELECTRICAL

INPUT

CONNECTIONS

Refer

to

the

Installation

Section

of the

welding

power

source

Manual

for

instructions

on

connecting

electrical

input

power

to

the

welding

power

source.

On

the

SCE/SCM-1A

and

3A

Models,

inside

the

cabinet

on

the

lower

right

corner

above

the

control

transformer,

is

either

a

three

or

a

five

pole

terminal

block

with

one

jumper

link

attached.

The

primary

power

supply

to

the

Sequence

Control

is

connected

to

this

block.

The

jumper

link

must

be

connected

for

the

primary

power

supply

voltage

that

will

correspond

with

the

primary

power

supply

voltage

of

the

TA-040

107-4

Figure

2-1.

Line

Voltage

Jumper

Link

Arrangement

welding

power

source.

Refer

to

Figure

2-1

for

positioning

of

the

link

for

the

required

operating

voltage.

On

the

SCE/SCM-5A,

the

control

transformer

which

provides

the

primary

power

to

the

control

is

located

in

the

welding

power

source.

2-2.

SECONDARY

CONNECTIONS

(Figure

2-2)

unit

was

shipped

wh

the

secondary

inte

r

connecting

cables

between

the

Sequence

Control

and

welding

power

source

unconnected.

It

is

therefore

necessary

to

route

and

secure

the

secondary

inter

connecting

cables

(already

attached

to

Sequence

Con

trol)

to

the

proper

weld

output

terminals

on

the

welding

power

source.

The

secondary

welding

cables

should

only

be

attached

to

the

output

terminals

on

Sequence

Control

to

achieve

proper

operation

of

this

Refer

to

Installation

Section

of the

welding

power

source

Owners

Manual

for

proper

weld

cable

size.

The

secondary

terminals

on

the

Sequence

Control

are

labeled

ELECTRODE

and

WORK.

Connect

the

electrode

holder

cable

to

the

terminal

marked

ELECTRODE

and

the

work

cable

to

the

terminal

marked

WORK.

2-3.

SHIELDING

GAS

CONNECTIONS

(Figure

2-2)

These

connections

are

located

on

the

front

panel

and

are

labeled

IN-GAS-OUT.

The

connections

have

a

right-hand,



Under

this

heading,

installation,

operating,

and

main

tenance

procedures

or

practices

will

he

found

that

if

not

carefully

followed

may

create

a

hazard

to

per-

U

I

U

I

230/460

VOLTS



~

230

460

208/230/460

VOLTS







208

230

460

230/460/575

VOLTS

00

000

230

460

575

OM-540

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