Paton PRO-160, Data Sheet And Operating Manual

PATON

PRO-series

DC

MMA/TIG/MIG/MAG

      ‐ 

10

 ‐

3.4

ANTI

‐

STICK

FUNCTION

During

initial

arc

striking,

the

electrode

can

stick

or

be

tacked

to

the

work

piece.

Many

functions

of

the

machine

resist

this

occurrence,

but

it

is

possible

nevertheless,

first

leading

to

overheating

and

eventually

to

damage

of

the

electrode.

In

such

a

case,

this

machine

actuates

the

built

‐

in

Anti

‐

Stick

function,

which

is

constantly

operating

in

the

MMA

mode.

Within

0.6...0.8

s

after

detection

of

this

condition,

this

function

reduces

arc

current.

In

addition,

this

function

helps

the

welding

operator

to

separate

(detach)

the

electrode

from

the

work

piece

without

risk

to

burn

his

eyes

with

accidental

arc

striking.

Once

the

electrode

is

separated

from

the

work

piece,

the

process

of

welding

can

be

readily

resumed.

3.5

FUNCTION

OF

SLOPE

ADJUSTMENT

FOR

A

CURRENT

‐

VOLTAGE

CURVE

This

function

is

primarily

designed

for

convenient

welding

using

electrodes

with

different

types

of

coating.

By

default,

current

‐

voltage

curve

slope

[CVS]

is

set

to

1.4V/A,

which

corresponds

to

the

most

commonly

used

electrodes

with

rutile

coating

(

АНО‐

21,

  М

Р

‐

3).

For

more

convenient

work

with

basic

‐

coated

electrodes

(

УОНИ‐

13/45,

 Л

КЗ

‐

70),

it

is

recommended,

although

not

required,

to

set

the

slope

[CVS]

to

1.0V/A.

On

the

other

hand,

cellulose

electrodes

(ЦЦ

‐

1,

  В

СЦ

‐

4А)

even

require

for

setting

the

slope

[CVS]

to

0.2...0.6V/A,

and

sometimes

it

is

also

necessary

to

rise

trigger

level

of

the

Arc

Force

Function

[u.AF]

up

to

18

V.

See

paragraph

6.1

for

sequence

of

changing

the

value

of

any

function

in

the

current

welding

mode.

3.6

SHORT

ARC

WELDING

FUNCTION

This

function

is

especially

important

for

overhead

welding,

when

very

long

arc

is

undesirable.

For

this

purpose,

the

machine

provides

the

possibility

to

set

the

Short

Arc

function

[Sh.A]

to

"On"

position.

By

default,

it

is

set

to

"OFF"

position.

See

paragraph

6.1

for

sequence

of

changing

the

value

of

any

function

in

the

current

welding

mode.

3.7

FUNCTION

OF

AN

OPEN

‐

CIRCUIT

VOLTAGE

REDUCTION

UNIT

When

performing

welding

works

in

vessels,

tanks

and

applications

requiring

for

enhanced

electric

safety

system,

one

can

enable

the

function

of

open

‐

circuit

voltage

reduction.

In

0.1

s

after

the

electrode

is

detached

from

the

work

piece,

voltage

on

the

source

terminals

drops

to

safe

level

below

12

V.

To

enable

this

function,

an

open

‐

circuit

voltage

reduction

unit

[BSn]

is

required.

This

unit

is

envisaged

in

this

equipment

model,

but

is

set

to

"OFF"

position

by

default,

i.e.

disabled,

since

it

is

known,

that

enabling

of

any

function

of

this

kind