LORCH MX 350 EU Operation Manual

LORCH

SchweiBtechnik

GmbH

Im

Anwander

24 -26

D-71549

Auenwald

Telephone:

+49

(0)

71911503-0

Fax:

+49

(0)

71911503-199

Website:

www.lorch.biz

Email:

[email protected]

Operation

Manual

MX

350

EU

909.1900.1-03

LORCH

Publisher

LORCH SchweiBtechnik GmbH Im

Anwander 24 -26,

D-71549 Auenwald, Germany Telephone: +49(0)7191/503-0

Telefax:

+49 (0)7191 503-199

Website: E-mail:

www.lorch.biz [email protected]

Document

number

909.1900.1-03

Issue date 16.10.2013

Copyright

This documentation including all its parts is protected by copyright. Any use or modification outside the strict limits of the copyright law without the permission

of

LORCH SchweiBtechnik GmbH is prohibited and liable to prosecution. This particularly applies to reproductions, translations, microfilming and storage and

processing

in

electronic systems.

Technical changes Our machines are

in

a constant state of further development, and the right is

reserved to make

technical changes without notice.

Table

of

contents

1

2

Machine

elements

......

.

.....

. . 4

Explanati

on

of

symbols

.....

....

4

2.1 Meaning

of

the symbols in the operation

manual . .

......

. .

......

. .

.....

. . . . . . . . . 4

2.2 Meaning

of

the symbols on the machine

...

. . . 4

3 Safety

precautions ... . . ......

..

5

4

Ambient

conditions

.............

5

General regulation

of

use ......

. . 6

6

UW

inspecti

on

.......

.....

....

6

7

Unit

protection

. . . .

.....

. .... . . . 6

8 Noise

emission ...

...

. . .

....

. . . 6

9 Electromagnetic

compa

tibility

(EMC) ...........

.....

. .

......

6

10

Transport

. .

...........

. . .

...

. . 6

11

Before start-up .............

...

. 7

11.

1 Fasten transportation belt. . . . . .

...........

. 7

11.2 Fastening accessories bel

t.

. .

.....

. .

.......

7

11.3 Electrode

we

lding process

...

. . . . .. . .

......

8

11.4 T

IG

welding process

...

. . . . . . .

...

.........

8

11.5 MIG welding process . . .. .. .

..............

9

11

.6 Connecting

th

e ground cable

..........

.....

9

11

. 7 Connecting the power supply

...

. . .

......

9

12

Start-up

......................

10

12

.1

Electrode welding process . . .

............

. 11

12.2

TIG welding process . . . . . . . . . . . .

........

. 12

12

.3 MIG wel ding process (MIG/MAG}

......

. .

...

12

12.4 Calling up the seconda

ry

parameters

......

..

13

12.5 Special funct ions . . . . . . . . . .

.....

. .

...

. . . 14

13 Graphs . .

.. ........

.........

. 15

13.1 El

ec

trode . . .

....

. . .

...•....

. . . . ..

...

..

15

13.2 TIG

......

. ........... . . . .. .

....

15

13.3 MIG (MIX,

C0

2

) . • • •

••.••..•.•.•

.

••••••.

15

14

Messages .

....

. . .

......

.... . .

16

14.1 Status messa ges

........

. . . . . . . . . . . . .

..

16

14.2 Error mes sages .

.....

. .... . . . .. .

.......

16

15

Welding bas

ics

. .... . ....... . . 18

15.1 Stick electrode welding .

...•...

. . . . .

...

18

15.2 TIG welding

....

. . . . .. ..

....

. . . . .... .

..

18

16

Fundamentals of the MIG/MAG

welding process

......

.

.......

20

LORCH

16.1 Principle

of

the MIG/MAG welding process . . .

20

16.2 Arc types. . . . . .

........

.... .

.........

20

17

Techn ical data . . .... . ....... . . 22

18

Maintenance and

repair

. .

......

24

19

Disposal ....

.........

........

24

20

Service ......

..

....

. .........

24

21

Declaration

of

conformity

...

....

24

22 Ersatzteilliste I

spa

re parts

list

I

Cm1coK

,a,eTan

ei::t

.............

.

25

22

.1

MX

350

EU ...

....

. .. .. .. .. . . .

...

......

25

23

Stromlaufplan I schematic

I

CxeMaT

HYeCKHH ..............

28

23.1 MX 350 EU . . . . . . . . . . . . . .

...

. . . . . . . .. 28

23.2 Orahtvorscl1ubkoffer I

wire feeder/

6

1101(

no.Qa

Y"1

npOB

OJlOKl-1

MF-07 (EURO)

....

...

. . . . .

...

.

30

24

Anschlussbelegung

I terminal

as

signment

I CxeMa

KOHTaKToe

pa3beMa . .

....

. ......

. . .

...

.

31

10.13 - 3 -

LORCH

1 Machine elements

Fig.

1:

Machine elements

1 Mains cable holder 3 Handle (hoisting poi

nt)

4 Operati

ng

field

6 Main swit

ch 7 Remote control connecting socket 8 Connecting socket

plug socket plus/minus (burn-

er/electrode

holder/ground cable)

2.1

- 4 -

Meaning

of

the

symbo

ls

in

the

opera-

tion

manual

Danger

to life

and limb!

If

the

danger warnings are disregarded, this can cause slight or severe injuries or even death.

Danger

of

property damage!

Disregardi

ng

danger warnings can cause

damage to workpieces. tools,

and

equip-

ment.

General note!

Indicates usef

ul information about

the

product

and equipment.

Explanation

of

symbo

ls

9 Mains

cab

le

10 Connecting socket wire feed case 7 pin (versi

on

E

U)

CD

Some

depicted or described accessories

are not included

in

the scope

of

delivery.

Subject

to

change.

2.2 Meaning

of

the

symbo

ls on

the

machine

&m

Danger!

Read

the user informati

on

in the operation

man

ual.

Disconnect the

mains

plug!

Pull

out the mains plug before opening

the

housing.

10.1

3

Ambient conditions

LORCH

3 Safety precautions

~~~~~~~~~~~~~

Hazard-free working with the machine is only possible if you read the operating and safety instructions

co

mpletely and strictly

observe them. Please obtain practical training before

using the machine for the first time. Heed the safety regulation

(UVV").

Remove all solvents, degreasers. and other flammable materials from the weld

in

g area before welding. Non-movable flammable materials must be covered.

Only weld

if

the

ambient air contains no high

concentra-

tions

of

dust, acid vapours, gases or flam-

mab

le substances. Special care must

be

taken during repair work on pipe systems

and tanks which contain or have contained

flammable liquids

or

gases.

Never

touch live parts inside

or

outside

of the housing. Never touch welding electrod

es

or live welding current parts in a

machine that is on.

Do

not

expose the machine

to

rain ; do not

clean with sprays

or

steam jets.

Always use a protection shield when

we

ld-

ing. Warn anyone in the work

area about

th

e dangers or arc rays .

Plea

se

use a suitable extraction system for

gases

and cutti

ng

vapours.

Always

wear

breathing apparatus when-

ever there is a risk

of

inhaling welding or

cutting fumes. If the power cable is damaged or severed

while working, do not touch the cable, but

im-

mediately pull out the mains plu

g.

Never use

a machi

ne

if the mains cable is damaged.

Keep a fire extinguisher near the welding area .

Check

the

weldi

ng

area for fire after weldi

ng

(see UW '

).

Never t

ry

to disassemble the pressu

re

reducer. Replace the pressure reducer

if

faulty.

The machine must be transported

or

set up

only on

firm, level surfaces.

T

he maxi

mum admissible angle

of

inclina-

tion for se

tt

ing up or transporting is 1 o

·.

0 Service and

re;pair work may only be carried out by a

trained electrician.

0 Ensure that the

re

is good direct contact

for

the ground

cable immed

iat

ely beside the weld poin

t.

Do not pass

10.

13

the welding current through chains, ball bearings , steel cabl

es,

grounding conductors, etc., as it could

cause these to melt.

0 Secure yourself and the welding machine

wh

en work-

ing in elevated or inclined areas.

0 The m

ac

hine should be co n

nec

ted only to a properly

grounded mains suppl

y.

(Three-phase four-w ire sys-

tem with grounded neutral conductor or single phase-

thr

ee-wi

re

system with grounded neutral conducto r) socket and extension cable must have a functional protective conductor.

D Wea r protective clothing, l

eat

her gloves and leather

apron.

D Protect the

we

lding area with curtains or

mob

ile

screens.

D Do not use welding equipment to

th

aw out frozen wa-

ter pipes or lines.

D In closed

co

ntainers, under cramped conditions, and

in high electrical risk areas, only use machines with

the

S sign.

0 When taking a break, switch off the machine and

close the valve on the gas

cy

linder.

D Secure the gas cylinder with a chain lo prevent it fall-

ing ove

r.

D Disconnect the mains plug from the mains before

changing the place

of

installation or making repairs

to

the machine.

*) Only appli

ca

ble for German

y.

Can be ordered from Carl Heymanns-Verlag, Luxemburger Sir. 449, 50939 Koln.

Please heed the safety regulati

ons

which apply to your

country.

Subject

to

change.

4 Ambient conditions

Temperature range of ambient air :

in operation: -20 °C

..

. +40 °c (-4 °F

..

. +104 °F)

transport and storage: -25 •c

..

. +55 •c (-13 "F

..

. +131

"F)

Relative humidity:

up to

so

% at 40 •c

(1

04 "F)

up to 90 % at 20 "C (68 "F)

~

Operation, storage and tra nsport may only be carries out within the ranges indicated! Use

outside of this range is co nsidered not

used with its intended purpose. The

manu-

facturer is not liable

for

damages cause by

misuse.

Am

bient air must be free of dust, acids, corrosive gases

or other damag

in

g substances!

-5 -

LORCH

5 General regulation

of

use

This machine is intended for use in the commercial and

industrial sector.

It is portable and is suitab

le

for opera-

tion on the mains

supply or also on a power generator.

D The machine is intended for DC electrode welding

of

- unalloyed stee ls, low and high-alloy steels,

-

ni

ckel and its alloys,

D Together with a T

IG

welding torch. the machine is

suitable for TIG welding with direct cur rent

of

- unalloyed steels, low and high-alloy steels,

- copper and its

alloys,

- nickel and its alloys,

- special

metals like titanium, zirconium and tanta-

lum.

D Together with a

wi

re feed case , the machine is suit-

able for MIG welding with

-

solid wire (MIG/MAG), flux-cored wire.

6

UW

inspection

Operators

of

commercially-operated welding systems

are

obliged to have regular safety inspections

of the equipment carried out in accordance with EN 60974-4. Lorch recommends inspections

al

12 month intervals.

A safety i

ns

pection must also

be

carried out if

mod

ifica-

tions or repairs have been made to the system.

G

Improper

UW

inspections can destroy the

system. For more information on

UVV in-

spections

of

welding systems, please con-

tact your authorised Lorch service centre.

7 Unit protection

This machine is protected electronically against overloading. Do not use fuses

of

higher amperage than print-

ed on the identification

plate.

8

Noise

emissi

on

The noise level

of

the unit is less than 70 dB(A}, meas-

ur

ed

under standard load

in

accordance with EN 60974-

1

in

the maximum working poin

t.

- 6 -

Trans

port

9 Electromagnetic compatibility

(EMC)

This product is manufact ured

in

conformance with the

current

EMC standard. Please note the followin

g:

D Due to their high power consumption, weldi

ng ma-

chines can cause

problems in t

he

public power grid.

The mai

ns

connection is therefore subject to requ i

rements with rega rd to the maximum permissible system impedance. The maximum

permissible system

impedance

(Zmax)

of

the interface to the power grid

(mains

con

nection) is indica

ted

in the technical data.

If

in

doubt, please contact your power grid operator.

D The machine is intended for we

ld

ing

in

both commer-

cial and industrial applications (CISPR

11

cl

ass A).

Use in other surroundings (for example

in

residential

areas)

may

disturb other electronic devices.

D Electromagnetic problems during start-up can arise

i

n:

- Mains cables, control cab les, signal and telecom-

munication lines near the weldi

ng

or cutting area

- TV/radio transmitters/receivers

- Computers and other control devices

- Protection equipme nt such as

alarm systems

- Pacemakers and hearing ai

ds

- Measurement and calibration devices

- Equipment with too

little protection against inter-

ference

If other equipment is disturbed, it may

be

necessary to

provide additional

shieldin

g.

D The affected area may go beyond the boundaries of

the property concerned. This depends on the

layout

of the building, and the other activities that may

be

going on there.

Please u

se

the machine

in

compliance with the manufacturer's instructions. The operator of the equipment is responsible for the installation and use

of

the machine.

Furthe

rm

ore, the owner is responsible (if necessary with

technical assistance from the manufacturer) for

eliminat-

i

ng

the interference caused by electromagnetic fields.

10 Transport

For

tran

spo

rt

usi

ng

mec

hanical l

iftin

g

gear (e.g. cra nes etc.)

only th e handle

may be used as the

hoisting poin

t. Use

suitable load-bearing equipment.

Do

not us

e a

fork-l

ift 1ruck

or sim

ilar

de-

vice

to

li

ft

the

mach

ine

by

its

housing.

The c

ar

rying strap

is

exclusive

ly

for

the

transpo

rt

by a pe

rson

.

10.

13

Before start-up

LORCH

11

Before start-up

---------------------------------~~~---------------~-----------------------------

11

.1 Fasten transportation belt

2

Fig.

2:

Transporta

tion belt

2 Ca

rry

ing belt

12 Plas

tic

sli

der

13 Velcro fastener

11

.2 Fastening accessories belt

r1

_ _

~

I

L·

'

~~

, / I / 1

I

~/

'

_,

I

Fig. 3: Accessories belt

5 Accessories belt with fastener

12 Plastic slider

14 Closure

10.13

13

~ Thread the transportation

be

lt into the welding ma-

chine and plastic slides.

See sequence of the num-

bering in

th

e picture.

14

~

Thread

the

accessories belt into the handle and plas-

tic slides.

See sequence

of

the numbering

in

the pic-

ture.

~

Plug the belt fasteners together.

- 7 -

LORCH

11.3 Electrode

welding

process

Connecting

the

electrode

welding

cable

:>

Connect the electrode welding cable to the minus or plus socket 8 and secure the cable by rotating it clockwise.

The polarity

of

the electrode depends

on

the type of electrode and the welding pro-

cess.

Please follow

the

manufacturer's

instructions on the electrode packaging for this purpose.

11.4

TIG

welding

process

For TIG weld ing you require

a TIG valve

torch (Type L

TV2600) for this device

Installing electrodes

21

20

:>

Unscrew the clamping cap 17.

:>

Remove the electrode 16 from the collet 18.

:>

Gri

nd

the end

of

the electrode 16.

:>

Slide the electrode 16 into the collet 18.

:>

Insert the electrode 16 into the tor

ch

and firmly tight-

en the clamping cap 17.

Do not

dismantle the collet body 20 and the

gas nozzle 21.

When converting the torch to a different electrode diameter, please pay attention to the following.

0 The collet 18, collet body 20 and electrode 16 must

have the same diameter.

0 The gas nozzle

21

must be matched to the electrode

diameter.

Connecting the

TIG

torch

:>

Connect the TIG torch to the minus 8 connection socket and secure it by turning it

clockwi

se.

- 8 -

Before start-up

Connecting the

inert

gas

cylinder

23

28'\<

I

Fig. 4:

Gas

connection

:>

Place the inert gas cylinder

28

in a suitable location

and secure to prevent it from falling over.

D The cylinder can

be

secu

red

using a wall bracket or

cylinder

trolley.

:>

Briefly open the gas cylinder valve 27 several times in

order to blow out any dirt particles that are presen

t.

:>

Connect the pressure reducer 22 to the inert gas cylinder 28.

:>

Screw the inert gas hose

24

to pressure reducer 22

and open the gas cylinder

valve 27.

Setting

the

inert

gas

quantity

:>

Open the valve 19

on

the TIG welding torch .

./

Inert gas flows out.

./

The flow met

er

23 indicates the gas quantity, and the content pressure gauge 26 indicates the cylinder content.

:>

Close the valve 19 on the TIG welding torch when the torch is not being used

in

order to prevent unneces-

sary use

of

gas.

10.13

Before start-up

11.5

MIG

welding process

71

A wire feed case (optional) is required for

MIG welding.

The operations required may differ depending on the version and the configura-

tion

of

the wire feed case!

Please observe the wire feed case operating manual!

Current source

74

Ground cable

LORCH

:>

Connect the welding cable 73 on the wire feed case to the connecting plug plus 8

or,

in special cases, mi-

nus 8 on the power source.

:>

Connect the control cable

of

the wire feed case 72

to the wire feed case connecting socket 1

O on the

power source. (only on lnt case type)

:>

Equipping the wire feed case. (See wire feed case operating instructions)

77

MIG/MAG torch

72

Control cable (only

on

lnt case

75

Wire feed case

type)

76

Ground cable (only on lnt case

73

Welding cable

type)

Fig.

5:

MIG welding connection diagram

11.6

Connecting the ground cable

:>

Connect the ground cable to the free minus or plus 8 socket and secure the cable by rotating it clockwise.

Fastening the ground clamp

~~~~~~~~~-

~!>""T----------------,,...-

Fig.

6: Attaching the ground clamp - Correct!

:>

Fasten the grounding clamp in the immediate vicinity of

the welding area, so that the welding current cannot seek its own return path across machine parts, ball bearings or electric circuitry.

:>

Connect the ground clamp firmly to the welding bench or the workpiece.

10.13

Fig.

7:

Attaching the ground clamp - Wrong!

a Do not place the ground clamp

on

the welding machine or the gas cylinder; otherwise the welding current will be carried via the protective conductors and it

will destroy these.

11.7

Connecting the power supply

The machine is suitable for operation on the mains supply or

on

a current generator.

:>

Plug the mains plug into the appropriate socket.

•••

·I

J .

..

The mains voltage and tolerance as well as the fuse protection must correspond to the technical specifications (see Technical Specifications).

-9-

LORCH

12 Start-up

51

~--=

~~

:=;;---__,,

50

~

~======:=::-~

49

~,......,...=:

~~fk,

Start-up

38

39

40 41 42

43

~

46

+ -

45

Fig.

8: Control

penel

MX

350

30

The Fault LED

~

ights

up continuously, and the

38

The Synergy LED light sup

if

the Synergy function

fault co

de

is displayed in the 7 segment display

is selected.

35.

39

The MIX LED lights up if MIG welding operating

31

The Remote control LED lights up when a remote

mode with mixed gas is

selected.

control

is connected.

40

The

C02 LED lights up

if

MIG welding operating

Control knob

48

specifies

the

maximum value for

mode with

C02 is selected.

the

control range

of

the remote control.

If

1

OOA

41

The TIG LED lights up if TIG operating mode is

has been set,

for

example, 1

OA

- 1

OOA

can be

called up using the remote control.

selected.

Lights up when wire feed case (case type ln

t)

is

42

Electrode LED

connected

lights up if Electrode operating mode is selected.

32

LEDVRD

43

Electrode CEL LED

lights up continuously with active VRD function

lights up with operating

mode

Electrode CEL

(reduction in idle running voltage) flashes if the

sel

ec

ted (Electrodes w

ith

cellulose-containing

output voltage exceeds the value permitted by

encapsulation,

suitable for vertical downward

the standard (e.g. in welding mode or

if

operating

welding)

mode MSG welding LED 39, 40 selected)

flashes

if gouging operating

mode

selected.

33

The Seconds LED lights up when a value is dis-

44

welding process selector switch

played in the 7 segment

display 35 in

sec

.

serves for

selecting the TIG operating mode,

34 The % LED lights up when a value is displayed in

MIG welding with mixing gas

the 7 segment display

35

in percent.

MIG welding with

C0

2

•

MMA or CEL electrode.

35

7-Segment-Display

If

you hold the button down f

or

longer than 2

indicates the

selected power level, weld voltage

sees

.,

if the MIG (MIX/CO,) operating mode has

or

wire feed speed .

been

selected, the Synergy operating mode is

If

the secondary parameters are activated, the

switched

on

(LED Syner

gy

38

lights up).

code and the set

value are shown alternately.

If

you hold the button down

for

longer than 2

36

Welding volta

ge

LED lights up when the welding sees., if the Electrode (MMA/CEL) operating

voltage is

displayed in the 7 segment display 35 mode has been selected,

the

gouging opera!-

in volts.

ing mode is switched on (LED Electrode CEL 43

37

The Welding current LED lights up when the

flashes).

welding

current is displayed in the 7 segment

45

Polarity indication

display 35 in amps.

46

Polarity indication

-10

·

10.13

Start-up

47

Selection button 2

cyc

le/4

cyc

le/cr

ate

r filling

/gas

t

est serv

es for selec

tion

of

2 cycle, 4 cycle

and

cra

ter filling.

If

the button is pushed for longer th

an

2 sees., the

gas test

is

started for approx. 30 sees.

48

The menu I

wel

ding curre

nt

control knob is used

for

:

•

The selection

of

welding current,

wel

ding voltage

and

the

wire fe

ed

rate (press).

•

The setting of welding current, welding voltage and

the

wire feed rate (turn).

• Calling up

the

secondary parameters (press fo r

2 sees.)

• sel

ect

ing

the seco

ndary parameters (rotate).

• selecting

the

secondary parameters (press).

• setting the secondary parameters (rotate).

49 The Crat

er filling LEDlights

up

if

the Cr

ater

filling

function is

sel

ected

50

LED 2-stroke lights

up

if

you sele

ct the 2-stroke

mode

.

51 LED 4-stro

ke

lights up if

you select

the

4-stroke

mode

.

12.1 El

ectro

de

welding

process

~~~~~~

~~

Switch

on

the

system

:>

Switch on the

sys

tem at the main switch

6.

:>

Keep pressing button 44 until th e desired electrode

operating fun

ct

ion is selected.

./

The ele

ctrode

MMA

or

CEL

(LED 42 or 43) li

ghts up.

:>

Use control

kno

b 48 to set the desired welding cur-

rent.

Electrode 0 [mm]

Recommended current

In·

tenslty [A]

1.5 20

..

.40

2.0

35 .

..

60

2.5

45 ...

100

3.2 75 ... 140

4.0

13

0 .

..

190

5.0 180

...

280

6.0

230

...

370

80

290 .. .420

Tab.

1:

Electrode diameter - Electrode

CD

Please follow the electrode manufacturer's

instructions

Electrode welding cur-

Range

Factory set-

rent

ting

Welding

current

11

10

to 350A 100

Tab

. 2: Electrode welding current

LORCH

Arc

ignition

:>

Briefly touch the workpiece at the point

to

be

welded

us

ing

the

electrode and li

ft

the

electrode a little.

./

The arc burns between t

he

workpiece and the elec-

trode.

Hotstart

0 Ignition performance is

improve

d by increasing t

he

welding current (Hotstart).

:>

Press the

ope

rating button

48

for 2 sees. to call up

the sec

ondary parameters.

:>

Selec

t the secondary parameter Hotstart (Code "ISt")

by

rotating

the

control

kno

b 48.

:>

Confirm the secondary parameter

by

pressing

the

con

trol knob 48.

:>

Set the

des

ired value

by

rotating the

con

trol knob 48.

:>

Confirm t

he

setting by pressing the control knob 48.

:>

Repeat the ope rations for setting the Hotstart ti

me

''

tSt

" secondary parameter.

:>

Exit the secondary parameters by pushing the oper-

ating button

48

for

2 sees.,

or

by

pressing

the

selec-

tion button 44.

Arc

dynamics (Arc

Force)

0

The

electro

de

is prevent

ed

from burning in in the

weld pool

by

means

of a br

ief current increase with

a

short

arc.

:>

Press the operating button

48

fo

r 2 sees. to call up

the secondary parame t

ers

.

:i

Select the Arc dynamics secondary parameter (Code

"dAF")

by turning the control kn

ob

48.

:>

Confirm

the

sec

ondary parameter by pressing the

control knob

48

.

:>

Set the desired

value

by rota

ting t

he

control knob 48.

:>

Confirm t

he

setting

by

pressing the control knob 48.

:>

Ex

it the secondary paramet

ers

by push

ing the

ope

r-

ating button 48 for

2 sees

..

or

by pressing t

he

selec-

ti

on

button 44.

10.13 -11 -

LORCH

12.2

TIG

welding

proces

~

Switch on the

system

:>

Switch

on

the system at the main switch 6.

:>

Keep pressing button 44 until the desired MIG oper-

ating function is

selected.

./

The TIG symbo l (LED 41) lights up.

:>

Use control knob 48 to set the desired welding current.

TIG

welding current

Range

Factory

setting

Welding current

11

10

to

350A 100

Tab.

3:

TIG

welding current

Arc

ignitio

n

:>

Open the valve

19

on the TIG welding torch.

CD

(

~

( p

'//////////////

'///

///////////

:>

<D

Briefly touch the workpiece with the tip

of

the elec-

trode

at

the point to be welded.

:>

@

Lift

the electrode a littl

e.

./

The

arc burns between the workpiece and the elec-

trode.

Ups lope

O A short-circuit current of 60 A

is

used for igniting during

the

TIG welding proc

ess.

The upslope takes place with

115

Ns

unt

il

the set welding current is reached.

Guideline values

for

the

current

intensity

and

the

gas

quantity

Tungsten electrode Current in-

Gas quantity

diameter [mm]

tensity [A]

[Vmin]

1.0 3 .. .40

4

1.6 15

...

130

5 ... 6

2.0

45 .

..

180

5 ... 8

2.4

70 ... 240 6 ... 10

3.2 140 .

.. 320

6

...

12

4.0 220 .. .450

6 .

..

14

-12

-

Start-up

12.3

MIG

welding

process

(MIG/MAG}

__

Switch

on

the

system

:>

Switch on the system at the main switch 6.

Selecting the

welding

process

:>

Kee p pressing button 44 until the desired MIX

or

C0

2

operating function is selected.

./

The MIX

or

C02 symbol (LED

39

or

40) lights up.

Selecting the

wire

feed

case

CD

The type

of

connected wire feed case can

be

selected at the welding unit.

0 If you are using a wire feed case with its own contro l

system you must set the case type

lo

external (EXI).

O If

you a

re

using a wire feed case without its own con-

trol system (with 6

or

7 pole connection plug) you

must set the case type

to

internal

(lnt).

:>

Press the operating button

48

for 2 sees. to call up

the secondary para meters.

:>

Select the case type secondary parameter (Code "Fdt") by turning the control knob 48 .

./

The

parameter

code

and

the

correspon

ding

setting are

displayed alternately

in

the

7-Seg

ment

display 35.

:>

Confi

rm

the

secondary

parameter

by

pressing

the

control knob 48 .

:>

Set the desired case type by

rot

ating the control knob

48 .

./

"lnt" or "

EXt"

is displayed

in the

7 segme

nt

display

35.

:>

Confirm the setting by pressing the control knob 48.

:>

Exit the secondary parameters by pushing the oper-

ating button 48 for 2 sees

.,

or

by

pressing the selec-

tion button 44.

Operating mode EXt case

type

O Only the 2 cycle operating mode is possible in the

case type

E.Xt

operating mode.

:>

Set the welding voltage by rotating the control kn

ob

48

.

:>

Press the operating button 48 to display the welding current.

O The welding current is only displayed during welding.

Operating mode

lnt

case

type

:>

Keep pushing the button 47 until the desired operating mode 2

cycle or 4 cycle an

d/or

crater filling func-

tion is selected .

./

The

LEDs

50

or

51

and/or 49 light up.

:>

Set the desired welding vol

tage

by rotating the knob

on the feed case.

:>

Set the desired wire feed speed by rotating the knob

on the feed case.

10.13

Start-up

O Press the operating button 48 to sw itch between the

display

of welding voltage, welding current and wire

feed speed.

./

The

rel

eva

nt parameter value is displayed

in

the

7 seg-

ment

display 35.

0 The welding current is only displayed during welding.

Synergy

~

Press the selector button 44 for 2 sec. with the oper-

ating mode

MIG

selected.

./'

The Synergy

38

LED lights up.

CD

The set wire diameter is displayed for approx. 5 sees. after switching on or

selecti ng

the Synergy operat ing

mode

.

:>

Select the wire diameter parameter as follows

- Press the operating button 48, whilst the wi

re

di-

ameter

"d" is displayed in the 7 segment display.

(immediately

after switching on or selecting the

Synergy operating mode)

- or select the secondary para

meter

wire diam-

eter during subsequent operation (see

"13.3 MIG

(MIX,

C02)"

on Page 15)

:>

Set the wi

re

diameter by rotat ing the control knob 48.

:>

Confirm the setting by pressing the control knob 48 .

:>

If necessary, press the control knob 48 for 2 sees., or the sele

ct

ion button 44

to

exit the secondary parameters.

:>

Set the desired weldi ng voltage by rotating the kn

ob

on the feed case.

:>

Set the wire feed rate on the rotary knob on the feed case to

the mid

dle position (0).

D

In the operating mode Synergy, the wire feed rate is automatically matched to the set welding voltage.

:>

Correct the wire feed rate, if necessary, on the feed case by

tu

rning

to"+" or"-"

.

12.4 Calling up

the

secondary parameters

:>

Press the opera ting button 48 for 2 sees. to call up the secondary parameters.

:>

Set the desired secondary parameter by rotating the control k

nob

48

.

./

The

parame

ter

code

and

the corresponding setting

are

displayed alternately

in

the 7-

Segment

display 3

5.

:>

Confirm the secondary parameter by pressing the control knob

48

.

:>

The setting

ea

n be adjusted by rotating the control

knob 48.

:>

Confirm the setting by pressing the control knob 48.

:>

The previous

or

next secondary paramet

er

is dis-

played by rotating the control knob 48.

D Different secondary parameters are

available de-

pending on

the

selected operating mode and func-

tion.

:>

Press the contro l knob 48 for 2 sees.,

or

the selection

bulton 44 to ex:it the secondary parame

te

rs.

10.13

LORCH

Cl)

Mode

::J

Cl)

iii

en

~

c

ea

Cl>

>

ea

Cl>

::J

..

e

Parameter

'8

"E

c

en

(!)

c

ea

0

Cll

c

~

i=

;;;

:::!:

"C

=

c

0

(!)

Cll

G>

iii

-

"'

i

"'

Start current

I t Sll:I

50 %

5

..

. 200 % x

Start current

tim

e

fTSlB

0.1 s

O.O

to

x

2

0s

Hots tart

LJjSLt_

1

25% 5 ...

200 % x

Hotstart time

~TSlf

1.

0 s

O.Oto

x

20 s

Arc dynamics

ld

lA1F

100 %

0 ... 200 % x

The weld

ing current increases automatically as the weld-

ing

voltage is reduced. The arc dynamic indicates the ratio

between the

welding current and the automatic increase.

Arc end detection

RlEJdJ

100%

0 ... 200 %

x x

Yo

ur welding machine switches the welding current o

ff

al

a certain arc length.

(We

ld

end

detection). The maxim

um length of the arc can be adapted using the "AEd" paramet er.

Inductor effect

I ll

nd

I

100%

0 .

..

200 % x x

Time

bum back

!:b

ib

100 % 1 ..

.2

00 % x x

Crater filling energy

1

i(if

50 % 0 ... 100 %

x

Crater filling voltage

UJll

20V

10 to 40

x

v

Crater filli

ng

feed

tf_iE

5 0 .

..

18

x

ra

te

m/min m/min

Crater filling lime

It

Flt

1 s 0

to

10 s x x

(on

ly with 2 cycle)

Case

ty

pe (feeder

f

ldlf

lnt ln

t...

EXI

x x

type) Cre

ep in speed

_C

ISIP

2 2 ... 18

x x

mlm

in

m

/m

in

Wire diameter

di

I

~~

0.8 .

.. 1.2

mm

x

Tab.

4:

Secondary parameters

D The factory setting values a

re optimised thanks to automatic parameters. You

can use these factory settings unchanged for

most

we

lding jobs.

-

13

.

LORCH

12.5 Special functions Gouging

Cl

Gouging is used for working out the roots

or

faulty

points and serves for preparing the weld seam.

Cl

A special torch

is

required for gouging that has car-

bon electrodes and compressed air connection.

:>

Keep pressing button 44 until the desired electrode operating function (MMA or CEL)

is

selected .

./

The electrode MMA or CEL (LED 42 or 43) lights up.

:>

Press and hold the electrode button 44 for at least 2 seconds .

./

The Electrode CEL LED 43 flashes.

:>

Set the desired current by rotating the control knob

48.

Master reset

CD

Warning! All personal settings will

be

lost

All welding and secondary parameters are reset to their factory settings (master reset function).

:>

Press buttons 44 and 47 simultaneously for at least

3 seconds .

./

The 7 segment display and the control panel indicators light up briefly as confirmation.

Switching the Function lock on I

off

:>

Press the control knob 48 and the button 44 simultaneously for at least 3 seconds .

./ 0--

11

is briefly displayed

in

the 7 segment display 35

as confirmation .

./

All buttons on the control knob are blocked. If it is operated,"--"

is displayed.

Cl

The control knob 48 and button 44 must be pressed again for at

least 3 seconds

in

order to disable the

function lock.

-14-

The function lock setting is saved! If the machine is switched off with the function lock activated, the control panel is still blocked when the machine is switched back on.

Start-up

10.13

Graphs

13

Graphs

13.1

Electrode

I Current

11

Welding

current

ISt

Hots tart

t

Time

tSt

Hotstart time

13.2

TIG

I Current

11

Welding current

ISt

Start current

Iz

Ignition current

t Time

tlu Upslope

tSt

Start current time

13.3

MIG (MIX,

C0

2

)

tbb

Tim

e burn back

CF

Crater filling energy

I

Current

11

Welding current

IC

FU

Current (crater filling voltage}

t Time

tCFt

Cra

ter filling time

v Speed

vCFF Speed crater filling

feed

rate

vCSP Creep in speed

t

I

;

I

S!

'

!S

t

Fig.

9: Electrode current routing diagram

t

I

!lz

IS!

I

'

:

l

'

tlu

:

'

tSt

I

'

,•

~:·

~

·

'

Fig.

10:

TIG

current routing diagram

t

I

(A)

11

!I

(mfmin)

vCS

P

'

11

LORCH

11

ICFU

!CF

t

-+

t-+

ICFt i I-+

: (

s)

'

~

:

tbb

.....___.____,;

vCFF

t-+

(s)

Fig.

11: Current development diagram MIG (MIX, CO.)

10.13

·15·

LORCH

14 Messages

14.1 Status messages

'--

~~~~~~~~~-

0

An

enror code

is

displayed in t

he

7-segment display

in the event

of

a malfunction. You

can

switch

over

between error code and sub-error (sub code) in

the

7

segme

nt display

by

pushing the button 44.

Code

Note

Cause

HOS

Short-circuit Short-circuit in the output circuit

Messages

After

the

message

has

been output, the

machine

will only function to a limited ex-

tent; the error

must

be corrected

as

quick

ly

as

possible.

The status message can

be delet

ed by

pressing

the

control knob 48.

P

ossJb

le

remedy

Eli

minate the short-circuit (pick up

electrode holder, ... )

H30 Configuration

Component group recogniti

on

faulty Inform Service

H31

Communication CAN bus communication faulty

Check connected devices and CAN connections

H34 Fans Fan curre

nt

faulty Inform Service

Tab.

5: Status messages

14.2

Error

messages

0

An

error

cod

e is displayed in the 7-segm

ent

displ

ay

in

the

event of a malfunction. You can switch

over

between error code and sub-error (sub

code) in the 7

segmen

t displ

ay

by

pushing a

ny

button.

CD

As

long

as

there is

an

error

code

on

dis-

play

weld

ing is not possible.

Code.

E11ror

Cause

Possible

remedy

E01

Excessive temperature Duty cycle exceeded Allow switched-on machine to cool

down for a few minutes

Dust

fi

lter contaminated Replace dust filter

E02

Overvoltage

Mains

voltage too high Check mains voltage

E04-1 Protective earth conductor

Fault

current to protective earth con- Connect the welding earth lead

monitoring ductor

E06

Overvoltage secondary Initial voltage too high

Inform Service

E07 EEPROM

Communication with EEPROM defec-

Switch machine

off

and on again, ex-

tive ecute master reset

E08-1

Excess motor voltage

Motor voltage too high

Inform Service

E08-2

Motor power supply

Err

or

in motor power supply Inform Service

E08-3

Overcurrent

on

motor

Motor current continuously t

oo

high Reduce motor load

EOS

-10 Torch connection

Torch/torch connection error

Check torch and torch connection. Switch the equipment off and

on

again

E08-11

VII

acquisition

Voltage/current measuring systems

Inform Service

faulty

E09

Vo

ltage detection

Voltage measuring system

faulty Inform Servi

ce

E12 Power section

Power section start-up

fa

ulty

Inform Service

E13

Temperature sensor Temperatu

re

sensor not ready for

Inform Service

operation

E14

Supply voltage

internal supply voltage too low Check mains voltages

E15

Current detection

Error during curre

nt

measurement Inform Service

E18

I Overload protection

Safety switch device to protect elec-

Inform Service

trical

components

•

16.

10.13

Messages

LORCH

Co

de

Error

Cause

Possible

remedy

E

22

Mains undervolta9e

Mains voltage

on

power unit is t

oo

Check mains voltag

es

low

E25

Idle generator Idle generator raulty Inform Servi

ce

E30

Error config uration

Faulty or wrong

pc-

board, wrong

Inform Service

software

system

installed

E

31

Communicat ions fault CAN bus

commu

nication faulty Switch the equipmen t off and on again

E32

FP

GA

FP

GA

faulty Inform Service

E

33

Power section

Power

module

not

symmetrical Inform Service

E34

Fans

Fan current

fa

ulty Info

rm

Service

E40

Voltage detection

Voltage measurement faulty

at

the Inform Service

socket

Tab

. 6. Error messages

10.13 - 17 -

LORCH

15 Welding basics

15.1

St

ick

electrode

wel

din

g

<-------

Coated stick electrodes are used for the widely-used manual metal arc welding process (stick electrode

weld-

ing). The coating

of

the electrode melts off during the

weldi

ng

process together wi

th

the co

re

wire. T

he

coating

gene

ra

tes the shielding gas. Additionally the burningoff coating compensates alloy elements. which are destroyed

in

the molten pool. A slag layer forms on top

of the welding seam. which covers and protects the cooling welding se

am

against the air.

The coatings

of

the electrodes differ according to thick-

ness and type, i.e. chemical composition. This results

in

different welding properties and con

seq

uently different

applications for t

he

e'lectrodes. Types a

nd

nomenclature

a

re

defined in DIN EN 499 (formerly 1913) .

-'---

Stick electrode

Base

metal

15.2

TIG

weld

ing

The TIG welding process is a universally-applicable process which creates high quality joint

s.

T

he

electrode

of the

TIG process consists

of

non-melting

tungsten, t

he

shielding gas is an inert gas. In English

usage we

sp

eak

ofTIG

welding ("Tungsten" = Wolfram

).

Inert gas is chemically neutral and does not react with the weld meta

l.

Inert gases are, e.g. argon, helium and

their mixtures.

Usually pure argon (99.9%) is used. The

welding g

as

must be dry. DIN 32 526 defines the differ-

ent types of shielding gas.

TI

G wel

ding

process basics

A non-melting tungsten electrode is clamped with a collet into a

gas

or water-cooled torch . The arc burns between the tungsten electrode and the workpiece in an inert

shielding gas atmosphere. Thus the tungsten electrode acts as an arc carrier. The arc melts the workpiece point by point and forms the weld pool. The shieldi

ng

gas escapes through the gas nozzle. This gas protects the tungsten electrode, the arc and t

he

molten pool against

t

he surrounding air. This prevents undesired oxidation.

Con

seq

uently, poor welding results may occur due to

tro

ub

le with the shielding gas supply.

In case additional filler material is required. filler

~1\re

is supplied either manually, as

in

gas name weldin

g,

or

-18

-

We

lding

basics

automatically

by

means of a cold wi

re

feeder. The filler

wire must be equally or mo

re

highly alloyed than the

base mater

ia

l.

Fla

nge and corner welds can be created

easily without filler wire. Sh

ieldi

ng

gas

B

as

ically, both DC and AC may be used for TIG welding.

The current mode and pol

ar

ity depend on the material to

be welde

d.

No

n or low-alloyed steel, high-alloyed steel and copper,

as

well as titanium a

nd

tantalum are welded with DC. The electrode is connected at the minus pole because of the stronger

cu

rrent loading.

When we lding aluminium and nnagnesium as well

as

their alloys,

AC

must be used in order to tear up the high-

melti

ng

and tough oxide skin which forms on the molten

pool or which is present on the base

metal. If t

he

oxide

skin is missin

g.

e.g. there has been welding on the same

part for a longer tim

e,

the arc can

be unsta

ble or break

up from time to

time.

Shape of the electro de

tip

Tungsten electrodes always have to be ground lengthwi

se

because crosswise grind

ing marks cause an un-

steady arc.

10

.13

Welding basics

Weldi

ng

current [A]

10-

50

50-

200

> 200

10.13

Electrode

angle

15

°-30

°

30°

-45

°

45

° - 75°

LORCH

The shape

of

the electrode for DC welding has to be

and remain as sharp as a penc il. The angle

of

the point

depends on the

we

ldi

ng

current. When AC welding, ii is

suffici

en

t to sharpen the edge

of

the electrode slightly.

After a short time, a round to slightly convex form is built. If the electrode tip is polluted due to dipping into the weld

pool or touching the filler wi

re

, the respective part

of the

electrode must be completely ground off. Restore t

he

original, pointed shape. Grind in longitudinal direction.

- 19 -

LORCH

Fund

amentals

of

the MIG/MAG welding process

16 Fundamentals of the MIG/MAG welding process

-~"'--'"~~~~~~~~~~~~~~~~

16.1

Princip

le

of

the MIG/MAG

welding

process

The wire feed rollers feed the wire electrode from the reel to the contact tip.

An

arc is created between the wire

electrode

and

the workpiece. The wire electrode thus

becomes the arc carrier. The arc

melts the workpiece

point by point and forms the

weld pool. The wire elec-

trode melts a

nd

drips into the weld pool, thus formi

ng the

filler metal. The inert gas flows from the gas nozzle and

protects the arc and

weld pool from atmospheric gases.

Wire electr

od£--

-

-:

G

as

noz

--

-

---"

~Bntact

ti~:-=~

~~~

Sh

ielding

-,..--

-===--

___,.~

gas Welding

,._flem

Fig. 12: MIG/MAG welding process

es

(!>

Powe

r source

t:I

There a

re

two types

of

metal shielding-gas welding

that are different

iated

by

the type

of

shielding

gas

that

is used:

metal inert gas welding (MIG), inert shielding

gas) and metal active gas weldi

ng

(MAG, active shield-

ing gas

).

Welding

Shielding

gas

process

inert

active

MIG

Helium

(He) Argon

(Ar)

mixture

of

Ar/He

MAG-C

Carbon dioxide

100 %

C02

MAG-M

Mixtures of Ar/ C02Ar/02

Tab.

7:

MIG/MAG welding processes

The welding processes are further differentiated by arc type. T

his

means that there are differences

in

the form of

the arc, short circuit tendency and

metal transfer mode.

Selection

of

the type

of

arc is only possible to a limited

extent e. g. when short arc welding. Short arc welding is

possible using all metal shielding gas welding processes by the

selection of the suitable current intensity and the

associated arc

voltage, although the short circuit frequency and drop size are very different, according to the shielding gas being use

d.

- 20 -

16

.2

Arc types

Short

arc

This type of arc is particularly suited to the welding

of thin sheets, in root layers and for welding in restricted locations because

of

its relatively "cold" weld flow.

In this

case, the

weldi

ng

takes place with a very short arc. at

low arc voltage and

at

low cu

rre

nt intensity. Due to the

su

rf

ace tension of the melt pool, t

he

drop is drawn into

the

molten

metal and the arc is reignite

d.

This recurring

cyc

le

creates a continuous alternation between the short

circuit and the arcing period.

CD

The transition from short to spr

ay

arc is de-

pendent upon the gas mixture and the wire

diameter.

Transiti

on

arc

A transi

ti

on arc is used for medium plate thickness and

for vertical down

welds. The materi

al

transfer tales place

both in short ci

rcu

it and in free flow. This produces a re-

duced short circu

it index and a slightly "hotter" mol

ten

pool than

in

the short arc. Transition arc welding has a

higher

melting rate than short arc, a

nd

is therefore more

economical. Long

arc

Lo

ng arcs are typically used for welding under carbon

dioxide and under high

C0

2 containi

ng

gas mixtures

in the upper performance range. Long arc welding is not re

ally suitable for welding in tight spaces. Larger drops

fall into the molten pool largely by gravi

ty.

This some-

times involves short circuits whic

h,

al

the point or the

short circuit,

ca

n produce spatter when the arc ignites

again. because of the

upslope.

Spray arc

Due to the thinness

of

the melt pool, spray arc welding

is not suitable for welding

in

tight spaces. It is used for

welding in the high

er

power range using inert gases or

gas mixtures with high argon conten

t.

The spray arc has

a very fine dro

p,

short-circuit free material transfer.

10.13

Fundamentals

of

the MIG/MAG welding

proce

ss

LORCH

W

ire elec

-

L

ong

ar

c/

Tr

ansitio

n

tr

ode di-

S

hort

arc

a

meter

spray

arc

mm

A

v A

v A v

0.8 1

40

...

23

...

110

..

18

...

50 ...

14

..

180

28 150

22

130 18

1

.0

180 ...

24 ...

130 ...

18 ... 70 ... 16 ...

250

30

200

24

160 19

1.2

220 ...

25

...

170

...

19

... 120

...

17 ...

320

32

250

26

200

20

1.6 260 ... 26 ... 200

...

22 ...

150 ...

18

...

320

34

300

28

200

21

Good

weld qualities are only achieved if the voltage and

cu

rrent are well balan

ced

.

VVhen

using

C02

an arc voltage whi

ch

is a

rou

nd

3 V larger

than required when u

sing

argon-

rich

gas mixtures.

Tab

. 8: Working ranges for MAG welding

Hol

ding

and

guid

ing the torch

CD

With metal shielding gas welding, you can

n

o work in all posi

ti

ons: level, horizontally,

vertically

from top to bottom, vertically from

bottom to to

p,

overhead and in lateral posi-

tion.

For

level and horizontal and level welds, hold the torch

vertically (neutral torch position)

or

pushing

at

up to 30°.

On

thicker layers you can also drag the torch slightly. The neutral torch position produces the best penetration depth and inert gas coverage. Take care not to

tilt t

he

torch too much, otherwise air could

be dra

wn in

to

the

inert

gas

shie

ld

by the injection effect.

If you are welding vertically and overhead then you should push the torch slightly. Down welds are used mainly for welding thin plates. In this case, hold the torch in as

neutral or slightly dragging position. This technique

requires specially trained and experienced

welders,

since there are dangers from incomplete fusion due to

the forward melt

pool. This danger increases wi

th

thicker

materials, or

if

the melt pool is very thin because the volt-

age is too high.

We

ld direction pushing

We

ld directi

on dra

ggi

ng

Fig. 13:

Torch

position

Avoid larger oscillating movements in order

to

prevent

the melt pool from buildi

ng

up

in

front of the arc. This can lead to incomplete fusion due to the forward melt pool. Exc

ept

in the vertical up position. you should oscillate

laterally only

as

far necessary to cover both edges

of

the

10.13

seam.

If

the seam is sufficiently wide, weld two beads

alongside each other.

If you are welding in the vertical up position, your oscilla-

tions should be in

the

shape of an open tri angl

e.

Arc length

The longer the arc. the shallower is the penetration depth, the wid

er

and flatter the weld bead and the great-

er

the tendency to spatter. The weld metal

is

transferred

in

slightly larger drops compared with a shorter arc. Use

a longer

arc

when fillet welding, in order to produce a flat

or concave

weld bead.

A shorter arc increases the penetration depth (at t

he same current intensity), the weld bead is narrower and the tendency to spatter is reduced. The weld metal is tra

nsf

erred in finer drops until the short a

rc

is

reached.

Lo

ng

arc

Short arc

Fig. 14: Arc length

Electrode

wire

length

In general, the distance between

the

torch

and

the work-

piece is 10-12 times the wire diamete

r.

You can also

change the torch distance to affect the length of

the

free

end of

th

e electrod

e.

A longer fre e end

of the

electrode reduces the current

intensity and the pe netration dept

h.

A shorter free end of the electrode increases the current intensity

while maintaining the same wire feed rate.

Lo

ng

electrode end Short electrode end

Fig.

15: Electrode wire length

-

21

-

LORCH

Technical data

17

Technical data

1

'

Units

MX35

0AS

/

MX3SOVRD

EU

TIG weldlng

A

10

...

350

Welding range min - max

v 10.4 ... 24.0

Idle voltage (peak value

in

accordance with EN 60974-1) V/DC <113 -

Idle voltage VRD (in accordance with

rocr

12.2 007.8) V/DC

-

12

Current setting Infinitely variable Slope characteristic falling

Welding

current

at

ED 100% A 250

Weldi ng current at ED 60% A

300

ED at maxim

um welding current

%

40

Current consumption 11 (at ED 100

%)

A

12.3

Current consumption I, (at ED

60

%)

A 15.7

Current consumption I, max A 19.6 Ma

ximum effective mains current

(I

,.")

A

12.

4

Power consumption S, (at ED 100%)

kV

A 8.5

Power consumption S1 (at ED 60%)

kVA 10.9

Power consumption S, """'

kVA 13.6

Electrode welding

A

10

... 350

Welding range min - max

v 20.4 ... 34 0

Idle voltage (peak value

1n

accordance with EN 60974-1) V/DC

<1

13

-

Idle voltage VRD (in accordance with

rocr

12.2 007 .8)

V/DC

-

12

Current setting

Infinitely variable Slope characteristic falling Weld ing curr

ent

al

ED

10

0%

A 230

Welding current at

ED

60%

A 280

ED at maximum welding current

%

35

Current consumption I, (at

ED

100%) A 16.0

Current consumptio n 1, (at ED 60%) A

20.7

Current consumption 11 max A

27.5

Maxim

um

effective mains current (I 1eff )

A

16

.3

Power consumption S, (at

ED

100%) kVA

11.1

Power consumption

s,

(at ED

60

%)

kVA

14.3

Pow

er

consumption

s,

max kVA 19

.1

Weldable electrodes

mm

1.5

...

8.0

MSG welding process (MIG/MA

G)

A

10 ... 350

Welding range min - max

v

14

.5 ... 31.5

Idle voltage (peak value in accordance with EN 60974-

1)

V/DC

<1

13

Power setting Infinitely variable Slope

characteristic

falling

- 22 -

10.13

Technical data

LORCH

Tec

hnical

data

1

)

U

nits

MX 350AS/ MX 3

50V

RD

EU

Welding current

at

ED 100%

A 230

Welding

current

at

ED 60%

A

280

ED

at

maximum welding current

%

35

Current

consumption 11 (

at

ED 100%)

A

15.9

Curr

ent

consumption I, (at

ED

60

%)

A

20

.1

Current consumpti

on

I, max

A

27

.8

Maximum effective mains current

(11.n

)

11eff I A 16.4

Power consumption

s, (at ED 100%)

kVA 11.0

Power consumption S, (at ED 60%)

kVA

13.

9

P

ow

er consumption S, "''"

kVA

19.3

We

ldable wires

steel

0 mm 0.8-1.

2

Weldable wir

es aluminium

0 mm

1.0 -1.2

We

ldable wires

CuSi

0mm

0.

8-1

.2

Efficiency

I')

at

100% ED

%

87

Mains

Mains voltage v 400 /

3-

Mains frequency

Hz

50

... 60

Positive mains tolerance %

25

Negative mains tolerance %

30

Negative mains tolerance, temporary %

40

Mains connection

mm•

4 x 2.5

Mains

plug

CEE32

Curren t consumption I, ,

0•10

11<1

A 0.2

Mains fuse slow -response TIG/EL

A

25

Power factor cos

<p

12 max

cos

<p

0.99

Power factor

J..

(

at

12max)

"

0.87

Max. pe rmissible syst

em

impedance Zmax in ace with I

EC

61000-3-11/12 mO 44

Machine

Protection class IP

34

Insulation class F

Cooling method F

Noise emission

db

{A) <70

Standard

EN

60974-1

Designation

CE

, S

Di

mensions

and

weights

Dimensions power source (LxWxH)

mm

515 x 185 x 400

Weight of power source kg 18.6

Tab

. 9:

Technical

datao

ED

=

Switch-on

duration

1

1 measured at 40"C ambient temperature

10.13 -

23

-

LORCH

18 Maintenance and repair

-----

Please !heed the

current

safety

and

ac-

cident

prevention

regulations

during all

maintenance

and

repair

work.

ine requires a minimum of care and maintenance. Only a few items need to be checked to ensure trouble-free

long-term operation.

:>

Check the following points f

or

damage

bef

ore starting

up the

welding machine,

- Mains

plug

and

cable

- Weldi

ng

torch and connections

- G

ro

und cable and connection

- Keyboa

rd

membrane and control panel

:>

Check the dust filter every two month

s.

-

Sw

itch the machine off

- Disconnect the mains

pl

ug

- Unscrew the ventilation grid on the rear side

19 Disposal

0

Only

for

EU

cou

ntr

ies.

Do not dispo

se

of

electric tools together

with

household waste material!

20 Service

Lorch Schwe

iBt

echnik GmbH

Im Anwander 24 -

26 D-71549 Auenwald Germany

Tel.

+49 (0)71

91 503-0

F

ax

+49(0)7191 50

3-1

99

21

Declaration of conformity

We herewith declare that this product was manufactured in conformance wit h the

following standards or official

documents:

EN

60

974

, EN

61

000-3-2, EN

61

000-3-3 in conformance with the guidelines 2006/95/EG. 2004/108/EG, 2011/65/EU.

c ( 2012

Wolfgang

Grob

Managing Director

Lorch

SchweiBtechnik GmbH

-

24

-

Declaration

of

conformity

- Check the dust filter for pollution

- Replace the dust filter

if

it is polluted (dust filter:

Order

number 612 .5193.0)

Use only original Lorch spare parts for maintenance and repair.

If you experience problems

or

need re-

pairs, contact a dealer authorised by Lorch.

Never ma

ke

repairs or technical changes

yourself. In this case the manufactur

er'

s

war

ra

nty is

no

longer vali

d.

In observance

of

European Directive 2002/96/EC on

wast

e,

electrical and electronic equipment and its implementation in accordance with national law, electric tools that h

av

e reached the end of their service life must be

collected separately and returned

to an environmentally

compatible recycling facility.

10

.1

3

Ersatzteilliste I spare parts

list

I Cm1coK AeTaneiil

LORCH

22 Ersatzteilliste I spare parts list I

Cm1coK

AeTaneM

~~~~~~~~~~~---'

22.1 MX 350 EU

990.4472.6-00

MX 350 (EU)

10.13

9

1

\

3

(~))

1=

\

~-~~

42

39

\~

'-.

'·

.,.-

8

10

19

- 25 -

LORCH

Ersatzteilliste I spare parts list I

Cm1

coK

AeT

ane'1

990.4472.6-00

MX 3

50

(EU)

P

os

Mat

.Nr. Bezeichnung

desi

gn

ation

Ha3eaHMe

1 604.3609.0 Zubeho

rgu

rt

40x800 schwarz transportation belt 40x800 black

PeMeHb

Af'IR npHH

aAf'le>KHocrelil

G22

40x800

YepHbllil G22

2

604.3613.0

Tragegurt 40x1500 schwa

rz

transportation belt 40x1500

PeMeHb

AflR

ne

peHOCKH

G22

black

G22

40x1500

Yep

. G22

3

604

.3640.0

KUNSTSTO

FFSCH

IEBER f. slide for transportation belt

nnaCTMaCCOBbllii

non3yH

OK

TR

AGEGURT

40mm

40mm 40

mm

4

602.2809.0

Seitenblech links

G28

404mm side

pan

el

left

G28

404mm 6oK

oeaR

YaCTb

neeaR G28

RAL2002 GS-G

RAL2002GS-G

389mm R.A

L2002

GS-G

5 602.2810.0 Seitenblech rechts G28 404mm side panel

righ

t G28 404mm

6oKoeaR YaCTb

npasaR G28

RAL2002GS-G

R.AL2002

GS-G

389mm R.AL2002GS

-G

6 602.

2811

.0 Deckblech G28

406mm

R.AL

cover plate

G28 406mm

KpblWKa

G28 406mm

RAL20

02

2002

GS-G

RAL2002 GS-G

GS-

G

7 604.2800.0 Kunststofffront

G28

Plastic front G28

n

epeAHRR

YaCTb

nnacrMa

ccoeaR

G28

8

604.2801.0

Kunststoffheck

G28

Plas

tic

back

G28

3ap,Hf!R

YaCTb nnaCTMa

ccosaR

G28

9

604.2802.0 LOf1ergitter

G28

100mm

Fan

gri

ll

G28

100mm

Pe

werKa

eeHrnnRropa

G28

100mm

10 604.2803.0

Lu

ftergitter G28 150mm

Fan gri

ll

G28 150mm

PewerKa

eeHT1-1m;ropa

G28

150mm

11

604.3

741

.0

Handgri

ffro

hr

Alu

366

mm

ha

ndle

tube Alu 366mm

P

yKoRrKaA

lu 351

mm LORC

H-

LORCH-Profil LORCH-Profil

Profil

12

606.2027.0 Aufkleber Netzstecker ziehen

st

icker pull

mains plug

30

mm

HaKneliiKa

Bb1Ta~1<1Tb

B"111KY

30mm

blau

bl

ue

30mm

C"1HRR

13 608.5004.0 Folientastatur MX350 keypad MX350

MeM6paHHaR

K11ae1-1arypa

MX350

14

610.2530.0 Zugentlastungsverschraubu

ng

cable gl

and

PG 13,5

Ka6enbHbllii

BBOA

PG 13,5

PG

13,5

15

610.3032.0 Dichtring Schau

mstoff AD16xl-

Fo

am

spacer AD 16xl08xH6

npo

KJlaAO

YHoe

KOnb

l..lO

nop

.

08x

H6

n

eHonnacr AD1

6xlD8xH6

16

610.3050.0

Schaumstoffeinlage

Foam inl

ay 178x98,5x44

BcraeKa

1113

nop1-1croro

178x98,

5x44

ne

HonnacTa

178x98,5x44

17

610.

3051

.0 Schaumstoffeinlage

Foam

inl

ay

178x162x60,4

BcraeKa

~3

nop1-1croro

178x162x60,4

nettonnacra 178x162x60,4

18

610.3053.0 Schaumstoffplatte selbstklebend

Foam plate self-adhesi

ve

Bcrae

Ka

113

nopHcroro

neHonnacra

130x25

caM

oKJleio~

aRCR

13

0x25

19

612

.5193.0 Filtervli

es 165mmx147

mm

Fi

lter fleece 165mmx147mm

i:t>1<1nbrp 165mmx

147mm

20

612

.5194.0

Dra

htgewebe 165mmx97mm Wire gauze 165mmx97mm

MW

nposonOYHaR CBTKa

MW2,5mm D0,7mm

2,5mm DO, 7mm

165mmx97mm

MW 2,5mm

D0

,7mm

21 614.0650.6 Drehknopf

31mm

schwarz Welle knob 3

1mm

black

sha

ft

6mm

PyY

Ka spal.J..\BH

HA 31

mm yepHaA

6mm

ocb

6mm

22

614.0661.0 Deckel 31mm rot knob

cap

31mm red

Kpbl

WKa

31mm

KPS

CHBA

23

653.0010.5

ET-BG

Mapro-

01

M02

P02

s.p.

pc-board

Mapro-01

M02

3.4.-311

.nnara Mapro

-01

M02

P02

24

653.

0011.5 ET-

BG

BF03

BP

02

s.p. pc-bo

ard BF03

BP

02

3.4.-3n

eKTpOHHa~

nnara

BF03

BP02

(E)

Ersatzleil I spare

part/

3anacHb

re

\faCTH

(T) Tausc

ht

eil I replacement part I 06MeHHb1e

l.faCTH

. 26 .

10

.13

Ersatzteilliste I spare parts list

I Cm1coK

AeTane~

LORCH

990 .44

72. 6-00

MX 350 (EU)

Pos

Mat.Nr

. Be

zeichnung

designation

Ha3eaHKe

25

653.0012.5 ET-

BG

DMR05

M01

s

.p.

pc-board

DMR05 M01

3.4

-3neKTpOHHaR nnaTa

DMR05

M01

26

653.0014.5

ET-BG

DRV02 s.p. pc-bo

ard

DRV02 3.4.-3neKTpOHH8R

ll!laTa

DRV02

27

653.0015.5 ET-

BG Nefi01

s.p. pc-bo

ard Nefi01

3.4.

-3neKTpOHHaH

nnara

Nefi01

28

653.0016.5

ET-BG DC01

s.p. pc-boa

rd

DC01 3.4.-3neKTpOHHaH

nnara

DC01

29

653.0017.5

ET-BG

SF02

s.p. pc-board

SF02

3.4.

-3neKTpOHHaH nnara SF0

2

30

655.9076.0 Obertrager

WA 13000061

Transror

rne

r WA 13000061

Tpa

Hc<j)

OpMarop

WA 1

3000061

31

657.

0121

.0 Schaller 3/0 25A 3p

h.

Switch 3/0 25A 3p

h.

Bbl

KJl

lO'laTe

nb 3/0 25A

3ph

.

32

658.0245 0 Gleichrichter

DB

1600V

BOA

rectifier

DB

1600V

BOA

BbinpRMi.tTenb

DB

1600V 80A

33

661

.7724 2 Netzkabel 4x2,5 CEE

32

3C

HA

Net ca

ble 4x2,5 CEE

32

3C

HA Cer

eeol'.1

Ka6e11b 4x4 CEE

32

-40°C

-40°c

3c

1R0-40

°c

34

661.8210.9 Kabelbaum AMP14B-Minifit 12p. Cable

loom

AMP14B-Minifit

12p.

Ka5eJlbHblH

>KTyT

AMP14B-M

ini

-

400mm

fit

12p. 400mm

35

661

.8306.1 Kabelbaum X350

EU

Erweite

- Cable l

oom

X350 EU exten

sion

Ka5. >t<ryr

X350

EU

,UononH

eHi.te

ru

ng

36

663.0207.0 lsolierbuchse

M7 09,2 insulating

bush

M7 09,2

i-IJOJlR~"10HH

aR

MyQ>ra

M7 09,2

H2

,5/7,5mm AD25

h2

,5/7,

5mm

AD25

H2

,5/7

,5m

m AD25

37

663.2508.0

lsolierfolie 260x85x0,35

ge

-

insu

la

tion foil 260x85x0,

35

pier-

i-1Jo.nrnl~HKa260x85x0,35wraMn

.

stanzt OM

ROS

ced

DMR

05

D

MR05

38

665.0519.0 Nebenwide

rstand

350A 35mV Shunt resistan

ce

350A 35mV

Wy

HT

350A 35mV

0,

1m0

hrn

0,

1m0

hm

4,8mm

0, 1

mOhm

4,8mm 4

,8mm

39

665.2216.0

Verschluf1kappe

AMP

14po

l.

cover

cap AMP 14pol.

BcraaHaR KPbtwKa

AMP 14po

l.

40

665.7020.0

Einbau-Buchsenteil

BEB

35-

50

ins·ert sleeve

BEB 35-

50

Bcrpoe

HHblH

pa3beM

BEB

35-50

mm

2

mm

'

41

981.1419.0 BG-Thermosensor 23x7x5

unit

thermal sensor 23x7x5

TepMOA8TY"1K

23x7x5 LD3,4

LD3,4 L

D3,4

42

981

.1507.0 BG-Axialventilator 12V

DC

ax

ial r

an

12VDC 80x80x38

Oceeoi-1 eeHrnnRrop 12VDC

80x80x38

31

Omm

310mm 80x80x38

310mm

43

602.2821.0

Kabelha

lteru

ng

G28

Cable holder G28

Ka5enbHOe

KpenneH11e

G28

44 604.2804.0

Disp

layabdeckung G28 Display cover G28

noKp

brrne

A"1Cnne~

G28

45

981.1212

.0

ET-Se

t Diode 3 Stk s.p

.1.-kt

t Diode 3 pcs

KoM

nneKT

AHOAOB

3 Stk.

(713.0301.0) (713.0301.

0)

(7

13.

0301.0)

(E) Ersatzteil I spare

part I 3anaCHble

'laCT"1

(T) Tauschteil I replacement part I 06MeHHble

'lacrn

Gultigkeit I Validity I

Aei:icTa

1HenbHocT

b

Type Serial

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wire

feeder

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DIN

34 / ISO

160

16:

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sowie

Vervielfliltigung

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Verwertung

und

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ihres

lnhaltes

nicht

gestattet,

soweit

nicht

ausdrocklich

zugestanden.

Zuwiderhandlungen

verpflichten

zu

Schadenersatz.

Alle

Rechte

tor

den

Fall

der

Patenterteilung

oder

Gebrauchsmuster-Eintragung

vorbehalten.

Copyright

reserved

ISO

160

16:

Copying

of

this

document,

and

giving

it

to

others

and

the

use

or

communication

of

the

contents

thereof,

are

forbidden

without

express

authority.

Offenders

are

liable

to

the

payment

of

damages.

All

rights

are

reserved

in

the

event

of

the

grant

of a

patent

or

the

registration

of a utility

model

or

design.

npaea

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LORCH

Stromlaufplan I schematic I

CxeMaTM"leCKMM

23.2 Drahtvorschubkoffer I wire feeder I 6noK

noAa'IM

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motor

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feed

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