Riland ARC 250GE Manuel utilisateur

ARC 250GE

WELDING MACHINE

USERMANUAL

Welcome to use our company’s welding machine!

For your own and other people’s safety, please read the manual carefully before

operating. And the user manual must always be available near the welding machine.

Announcement

The contents of this manual are updated irregularity for updating of product. The

manual is only used as operation guide, except for other promises. No warranties of

any kind, either express or implied are made in relation to the description, information

or suggestion or any other contents of the manual.

Version

Version YF-TAE-0127,A1. Released on August 27, 2020.

The images shown here are indicative only. If there is inconsistency between

the image and the actual product, the actual product shall govern.

 
Content
Safety warning.......................................................................................................................................3 
Product ...................................................................................................................................................8 
1 General........................................................................................................................................8 
2 Technical data..........................................................................................................................10 
Installation............................................................................................................................................11 
Operation..............................................................................................................................................14 
1 Front panel layout....................................................................................................................14 
2 Operation instruction............................................................................................................... 14 
3 Welding environment and safety...........................................................................................15 
4 Welding problems and resolution.......................................................................................... 15 
Daily maintenance and checking......................................................................................................17 
Trouble shooting and fault finding....................................................................................................19 
Appendix Ⅰ Welding parameter list...................................................................................................20 
Appendix Ⅱ Circuit diagram................................................................................................................21 
 

1. Safety warning

Security Definitions

It indicates that neglecting safety warnings may result in serious

accidents, even death or serious injury.

It indicates that neglecting safety warnings may result in minor

injury to personnel or property damage.

It indicates that neglecting safety warnings may result in

equipment failure or damage.

Personal Protection Precautions

◆Personnel with professional qualifications or relevant knowledge and skills are requested to

install, operate, maintain and repair the power source.

◆Installation, inspection and repair of power source must be carried out by electricians, and

temporary construction points should be connected by electricians.

◆Supervisors shall be provided for working in high altitude or narrow places, such as boxes,

boilers, cabins, etc.

◆Personal protective equipment, such as protective masks, overalls, insulating gloves and

insulating shoes, should be worn when working.

◆Those who use cardiac pacemakers shall not approach the power source in use and welding

workplaces without the permission of a physician.

Installation Operation Precautions

◆Before welding, the yellow-green grounding wire in the power line must be grounded and the

insulation of the welding cable must be ensured.

◆During welding operation, do not touch live parts such as workbench, welding parts, earth

clamp, electrode holder or welding torches.

◆Rubber insulation pads should also be laid on the ground near the operating table for welding

operations with high no-load voltage and in wet working places.

◆In the welding process, do not open the machine house and side cover.

◆Do not touch the electrically charged parts.

◆Do not use cables with insufficient cross-section, damaged insulation sheaths or exposed

conductors.

◆Maintenance operation should be carried out after 5 minutes of disconnection of the power

supply until the power indicator is completely turned off, otherwise there is a risk of electric

shock.

◆Turn off all input power when transferring work place, replacing fuse, repairing or not using

the equipment.

◆When welding steel plates with coatings or coatings, harmful fumes and gases will be

produced. Full ventilation or exhaust facilities should be used to keep fumes and toxic gases

away from the breathing area. If necessary, wear breathing protection tools.

The

power

source

shall

not

used

for

pipeline

thawing,

battery

load

motor

start-up.

Beware

Electric

Shocks

Beware

welding

fume

and

harmful

gases

◆When working in narrow places, such as boxes, boilers, cabins, etc., please accept the

inspection of supervisors. In order to prevent hypoxia, we should fully ventilate and wear

respiratory protective equipment.

◆Keep ventilation system of welding machine unblocked. The minimum distance between

power source and surrounding place should be greater than 0.5m. Do not cover the inlet and

outlet of equipment to ensure smooth circulation of cooling air.

◆Corresponding protective measures should be takenin the welding area to avoid fire caused

by welding mars.

◆Do not carry out welding operations in degreasing, cleaning and spraying areas.

◆Do not weld gas-filled pipes, sealing grooves (boxes) and other devices, otherwise

explosions or fires are likely to occur.

◆Do not weld near flammable gases or devices with flammable substances, otherwise

explosion or fire may occur.

◆When not welded, make sure that any component in the wire circuit does not contact the

workpiece or the earth, otherwise it may cause overheating and fire.

◆When the welding operation is stopped, remove the electrode in the welding pliers or cut off

the welding wire in the nozzle of the welding torch.

◆Those who use cardiac pacemakers shall notapproach the power source in use and welding

workplaces without the permission of a physician.

◆It is strictly forbidden to place or wrap welded cables around the body.

◆Do not place the bodybetween the welding wire and the workpiece cable. If the welding wire

cable is on the right side of the body, the workpiece cable should also be on the right side of

the body.

Welding

Sparks

May

Cause

Fire

Explosion

Electrical

Base

Field

May

Dangerous

◆When welding or supervising welding, please wear protective appliances with adequate

shading.

◆Protective barriers are set around the welding site to prevent arc or welding spatter from

injuring others.

◆Users should ensure that the welding power supply and other equipment in the environment

do not produce electromagnetic interference, otherwise corresponding shielding and

protection measures should be taken.

◆According to the manufacturer's suggestion, the power source should be connected to the

main power supply line.

◆The length of welded cables should be shortened as far as possible to make them close to

each other and to the ground.

◆Safety of all metal assemblies assembled by welding and the assemblies connected with

them should be confirmed.

◆The yellow-green grounding wire in the power line must be grounded, and the workpiece

must be well connected with the ground clamp.

◆Users should be responsible for the interference caused by welding.

◆In order to avoid the harm of noise to you and others, please wear the prescribed protective

equipment.

Arc

Rays

May

Cause

Burns

Avoiding

Electromagnetic

Interference

Noise

Produced

during

Welding

can

Easily

Cause

Hearing

Loss

Cautions

for

Hoisting

◆The power source with strap or handle is prohibited from using strap or handle for lifting.

◆When lifting power source with lifting forklift truck, in order to prevent dumping, please fork-

fit and fix it from side.

◆When lifting power source with crane, the cable should be tied to the suspension ring, and

the angle between the cable and the vertical direction should not exceed 15 degrees.

◆When the power source with cylinder and wire feeder is hoisted, the two equipments should

be unloaded from the power supply first.When moving the power source on the ground, it is

necessary to fix the cylinder with a strap or chain to prevent dumping and injuring people.

◆If the wire feeder is hoisted by lifting lugs for welding, it is necessary to ensure that it is firm

and insulated.

1 Product

1.1 General

Themachinewith MMAfunction,is digitalfunctionweldingmachinethatapplythe most advanced

inversion technology in the world.

The principle of inversion is to transform the power frequency of 50Hz/60Hz into direct current

and invert it into high frequency (33KHz) through high-power device IGBT, then perform voltage-

drop and commutation with the output high-power D.C power supply via full digital Pulse Width

Modulation (PWM) control technology. Since the switch power inversion technology is adopted,

the weight and volume decrease greatly while the conversion efficiency increase for more than

30%.

Our welding power source can offer stronger, more concentrated and more stable arc. When the

welding rod and work piece get short circuit, its response will be quicker. It means that it is easy

to design welding machine with different dynamic characteristics, and it can even adjust the

characteristics to make arc softer or harder.

Rings

Handle

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