Telwin INVERPULSE 425 MIG TIG MMA - Инструкция по эксплуатации - Страница 6

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RESIDUAL RISKS

-   OVERTURNING: position the welding machine on a horizontal surface that is 

able to support the weight: otherwise (e.g. inclined or uneven floors etc.) there 

is danger of overturning.

-  Never  lift  the  trolley  assembled  with  the  welding  machine,  wire  feeder  and 

cooling system (when present).

-  The  only  permitted  lifting  method  is  that  described  in  the  “INSTALLATION” 

section of this manual.

-   IMPROPER  USE:  it  is  hazardous  to  use  the  welding  machine  for  any  work 

other than that for which it was designed (e.g. de-icing mains water pipes).

-  MOVING THE WELDING MACHINE AND ITS TROLLEY: always secure the gas 

bottle with appropriate equipment, to prevent it falling accidentally.

The safety guards and moving parts covers of the welding machine and of the 

wire  feeder  should  be  in  their  proper  positions  before  connecting  the  welding 

machine to the power supply.

WARNING! Any  manual  operation  carried  out  on  the  moving  parts  of  the  wire 

feeder, for example:

-   Replacing rollers and/or the wire guide

-   Inserting wire in the rollers

-   Loading the wire reel

-   Cleaning the rollers, the gears and the area underneath them

-   Lubricating the gears

SHOULD  BE  CARRIED  OUT  WITH  THE  WELDING  MACHINE  SWITCHED  OFF 

AND DISCONNECTED FROM THE POWER SUPPLY OUTLET.
2. INTRODUCTION AND GENERAL DESCRIPTION

2.1 INTRODUCTION

This welding machine consists of a power source with an integrated wire feeder. 

The power source is a multi-procedure (continuous and pulsed MIG-MAG SYNERGIC, 

TIG  and  MMA)  3-phase  powered  rectifier  with  microprocessor  controlled  electronic 

regulation (switch-mode), with primary side whole bridge.

The wire feeder is equipped with a 4-roller motorised wire puller unit with independent 

adjustment  of  pulling  pressure;  the  digital  control  panel  is  integrated  with  the 

microprocessor  adjustment  board  and  it  contains  fundamentally  three  condensed 

functions:

a)  PARAMETER SETTINGS AND ADJUSTMENTS

  With this user interface it is possible to set and adjust the operating parameters, 

select previously stored programs, view parameter status and values on the 

display.

b)  RECALLING PRE-STORED SYNERGIC PROGRAMS FOR MIG-MAG WELDING

  These  programs  are  pre-defined  and  stored  by  the  manufacturer  (so  cannot  be 

modified); when the user recalls one of these programs, he can select a specific job 

point (corresponding to a set of various independent welding parameters), adjusting 

a single magnitude. This is the 

SINERGY 

concept, which makes it extremely easy 

to achieve perfect adjustment of the welding machine depending on each specific 

operating condition.

c)  STORING/RECALLING CUSTOMISED PROGRAMS

  This function is available when working within a synergic program and also when 

in  manual  mode  (in  this  case  the  setting  for  all  the  welding  parameters  is  at  the 

discretion of the operator). This mode of operation allows the user to store and later 

recall a specific welding procedure.

2.2 METAL WELDABILITY

MIG-MAG 

The  welding  machine  is  suitable  for  MIG  welding  of  aluminium  and  its 

alloys, MIG brazing is typically carried out on galvanised plate and MAG welding on 

carbon, low alloy and stainless steels.

MIG welding of aluminium and its alloys should be carried out using core wire with a 

composition  that  is  compatible  with  the  material  being  welded  and  pure Ar  (99.9%) 

protective gas. 

MIG brazing can be carried out, typically, on galvanised plate using core wire in copper 

alloy (e.g. copper silicon or copper aluminium) with pure Ar (99.9%) protective gas.

MAG welding with carbon and low alloy steels should be done using core wire with a 

composition that is compatible with the material to be welded and with CO

2

, or with an 

Ar/CO

2

 or Ar/CO

2

-O

2 

 mixture, as the protective gas (Argon normally > 80%).

For  welding  stainless  steel,  Ar/O

2

  or  Ar/CO

2 

  gas  mixtures  are  normally  used  (Ar 

normally> 98%).

TIG

  The  welding  machine  is  suitable  for  TIG  welding  with  direct  current  (DC).  with 

contact arc strike (LIFT ARC mode), and is suitable for use with all steels (carbon, low 

and high alloys) and heavy metals (copper, nickel, titanium and their alloys) with pure 

Ar (99.9%) protective gas or, for particular operations, with Argon/Helium mixtures.

MMA

  The  welding  machine  is  suitable  for  MMA  electrode  welding  in  direct  current 

(DC) with all types of coated electrodes.

2.3 STANDARD ACCESSORIES

-  ARGON bottle adapter

-  Return cable complete with earth clamp.

-  Pressure reducing valve, 2 pressure gauges.

-  1.5 m. cable connection kit 

-  G.R.A. water cooling system 

  (only for R.A. version).

-  MIG torch

  (the R.A. version is water cooled).

-  Wire feeder

-  Coil cover kit.

-  Trolley

2.4 OPTIONAL ACCESSORIES

-  Remote control 1 potentiometer (only TIG and MMA).

-  Manual remote control, 2 potentiometers.

-  Pedal remote control (only TIG and MMA).

-  G.R.A water cooling system

  (standard accessories only for the R.A. version).

-  R.A. connecting cable kit, 4m, 10m, 30m.

-  Connecting cable kit, 4 or 10 m.

-  Wire feeder wheel kit.

-  Aluminium welding kit

-  Flux-core wire welding kit.

-  MMA 600A welding kit.

-  MIG torch 5m 500A.

-  MIG torch 3m 500A R.A.

   (standard accessory only for the R.A. version).

-  MIG torch 5m 500A R.A. 

-  TIG torch 4 or 8m, 220A.

-  TIG torch 4 or 8m 350A R.A.

-  MIG/TIG UP/DOWN torch with/without potentiometer.

-  PUSH PULL torch.

-  Torch with serial 485.

-  Double bottle kit.

3. TECHNICAL DATA

3.1 DATA PLATE (FIG. A)

The most important data regarding use and performance of the welding machine are 

summarised on the rating plate and have the following meaning:

1-

   Protection rating of the covering.

2-  

Symbol for power supply line:

     1~: single phase alternating voltage;

     3~: three phase alternating voltage.

3- 

Symbol 

S

:  indicates  that  welding  operations  may  be  carried  out  in  environments 

with heightened risk of electric shock (e.g. very close to large metallic volumes).

4-  

Symbol for welding procedure provided.

5-  

Symbol for internal structure of the welding machine.

6- 

EUROPEAN  standard  of  reference,  for  safety  and  construction  of  arc  welding 

machines.

7- 

Manufacturer’s serial number for welding machine identification (indispensable for 

technical assistance, requesting spare parts, discovering product origin).

8-  

Performance of the welding circuit:

  - U

0

  :

 maximum no-load voltage (open welding circuit).

  - I

2

/U

2

:

 current and corresponding normalised voltage that the welding machine can 

supply during welding.

  -  X  : 

Duty  cycle:  indicates  the  time  for  which  the  welding  machine  can  supply 

the corresponding current (same column). It is expressed as %, based on a 10 

minutes cycle (e.g. 60% = 6 minutes working, 4 minutes pause, and so on).

    If the usage factors (on the plate, referring to a 40°C environment) are exceeded, 

the thermal safeguard will trigger (the welding machine will remain in standby until 

its temperature returns within the allowed limits).

  -  A/V-A/V:

  shows  the  range  of  adjustment  for  the  welding  current  (minimum  

maximum) at the corresponding arc voltage.

9-  

Technical specifications for power supply line:

-  U

1

: 

Alternating voltage and power supply frequency of welding machine (allowed 

limit ±10%).

-  I

1 max

: Maximum current absorbed by the line.

-  I

1eff

:

  : Effective current supplied.

10-  

: Size of delayed action fuses to be used to protect the power line.

11- 

Symbols  referring  to  safety  regulations,  whose  meaning  is  given  in  chapter  1 

“General safety considerations for arc welding”.

Note: The data plate shown above is an example to give the meaning of the symbols 

and  numbers;  the  exact  values  of  technical  data  for  the  welding  machine  in  your 

possession must be checked directly on the data plate of the welding machine itself.

3.2 OTHER TECHNICAL INFORMATION:

-  WELDING MACHINE:  

see table (TAB.1)

-  TORCH:  

see table (TAB.2A)

-   WIRE FEEDER:  

see table (TAB.2B)

4. WELDING MACHINE DESCRIPTION 

4.1 CONTROL DEVICES, ADJUSTMENT AND CONNECTION

4.1.1 Welding machine (FIG. B1)

on front:

1-  Control panel (see description).

2-  Negative  (-)  quick  connector  for  welding  current  cable  (earth  cable  for  MIG  and 

MMA, torch cable for TIG).

3-  Gas connector for TIG torch.

4-  3p connector for TIG TORCH control cable

5-  14p connector for remote control connection (optional).

6-  Positive (+) quick connector for TIG welding earth cable.

at the back:

7-  Main ON/OFF switch.

8-  Gas pipe connector (bottle) for TIG welding.

9-   Positive (+) quick connector for connecting the welding current cable to the wire 

feeder.

10-  14p connector for wire feeder control cable.

11-  Power supply cable with cable gland.

12-  5p connector for water cooling system.

13-  Fuse.

14-  USB socket.

4.1.2 Wire feeder (FIG. B2)

on front:

1-   Control panel (see description).

2-  14p connector for remote control connection.

3-  Quick connectors for MIG torch water pipes.

4-  Centralised connection for MIG torch (Euro).

at the back:

5-  14p connector for control cable connection with the welding machine.

6-   Positive  (+)  quick  connector  for  connecting  the  welding  current  cable  to  the 

welding machine.

7-  Gas pipe connector (bottle) for MIG welding.

8-  Quick connectors for connecting the cooling water delivery and return pipes.

9-  Fuse.

4.2 WELDING MACHINE CONTROL PANEL (FIG. C)

The  control  panel  is  enabled  (i.e.  the  commands  and  signals  are  active)  only  if  the 

welding machine is not connected to the wire feeder, or if the MMA or TIG process is 

set. Should the welding machine be connected to the wire feeder, or the function set 

is MIG, the latter automatically takes complete control and the word “feed” appears on 

the welding machine display (3).

1-   LED  indicating  ALARM

  (machine  output  is  disabled).  An  alarm  message 

appears on the display (3).

The welding machine is reset automatically when the cause for alarm has been