Newarc Equipment Ltd.
UK‘s Leading Manufacturer Of Welding Equipment
Newcastle +44 (0) 191 295 0111
Aberdeen +44 (0) 1224 771 063
www.newarc.co.uk
To maintain continued developments of our products we reserve the right to alter specifications as quoted without prior notice
R5000/4000 CCCV
Important Information
All persons authorised to use, repair or service the R4000/R5000
Inverter welding unit, should read the section on safety, before any work is undertaken. Further information is available in
publication HSG118 'Electric safety in arc welding', which may
be obtained from the Health & Safety Executive. Please contact your distributor should you not understand any of the information within this document.
INSTRUCTION MANUAL
Processes
Description
Constant Current / Constant
Voltage Power Source
R5/4000 CCCV
3
TABLE OF CONTENTS
SECTION 1 — SAFETY
1 - General Precautions_______________________________________________________ 4
SECTION 2 — SPECIFICATION
2.1 - Specification_____________________________________________________________ 5
SECTION 3 — INSTALLATION
3.1 - Siting the R5/4000________________________________________________________ 6
3.2 - Connecting to mains supply______________________________________________ 6
3.3 - Setting supply voltage tapping____________________________________________ 6
SECTION 4 — OPERATION
4.1 - Operating Controls ____________________________________________________ 7
SECTION 5 — FAULT FINDING AND MAINTENANCE
5.1 - MIG Welding Problems_________________________________________________ 9
5.2 - Maintenance__________________________________________________________ 10
SECTION 6 — ELECTRICAL DIAGRAMS
6.1 - System Diagram________________________________________________________ 11
SECTION 7—PARTS BREAKDOWN
7.1 - Component Locations__________________________________________________ 12
7.2 - Parts List_______________________________________________________________ 14
4.2 - Operating ____________________________________________________________ 8
R5/4000 CCCV
4
SECTION 1 — SAFETY
Fire and Explosions
Pay attention to fire and safety regulations in force at
the welding site.
• Remove all flammable or combustible materials from
the welding area and the immediate vicinity.
• Suitable fire fighting equipment must always be present
where welding is carried out.
• Be aware that a fire risk is present for a considerable
time after welding operations have ceased because of
sparks and hot slag etc. Take suitable precautions
when you have finished welding.
• Take care when welding containers that have held
flammable or combustible material, these should have
been specially cleaned before being given to the
welder. If in doubt do not weld them.
Burns
Be aware that burns may be the result of the heat involved in the welding process, welding spatter or the
Ultra Violet Radiation given off by the arc itself.
• Wear suitable fireproof clothing over all your body.
• Wear protective gauntlets designed for welding use.
• Wear a welding facemask fitted with the correct filter
shade suitable for the current at which you will be welding.
• Avoid wearing oily or greasy clothing as a spark may
ignite them. Where possible ensure that a suitable first
aid kit and a first aid person qualified in the treatment
of burns are available nearby.
Fumes
Welding operations give off harmful fumes that are
hazardous to your health.
• Make sure the welding area is well ventilated. Use suitable fume extractors or exhaust fans if necessary.
• If the ventilation is not suitable then breathing apparatus may have to be used.
• Do not weld plated metals or metals which contain
Lead, cadmium, Zinc, Mercury or Beryllium unless you
are wearing suitable breathing apparatus.
Electric Shock
• Do not touch live electrical parts.
• Do not work in wet or excessively humid areas and do
not site the unit on a wet surface.
• Avoid touching the work piece whilst welding.
• Do not use the unit without the protective cover.
• Keep your clothing and body dry.
The safe handling of gas cylinders
The R4000/R5000 uses argon when TIG welding using
the TIG300. This is an inert gas and can displace oxygen in the atmosphere leading to asphyxiation.
• Gas cylinders are under pressure and can explode if
punctured. Please ensure the cylinder is secured in a
stable location, away from any heat source or potential
mechanical damage.
• The cylinder must be securely fastened to a wall or
placed in a specially designed cylinder carrier.
• Do not use gas cylinders whose contents you are unsure
of.
• Do not try to directly connect a gas cylinder to Newarc
equipment without using a pressure-reducing regulator
designed for use with argon.
• Always install and use pressure regulators in accordance with the manufacturers instructions.
• It is advisable, when attaching the regulator to the gas
bottle, to briefly turn on the bottle valve to expel any foreign objects that may be present. These may later block
the solenoid valve of the machine if not dealt with. Turn
your face away from the bottle valve when undertaking
this action.
• Check the gas cylinder, pressure regulator and gas
hoses regularly for leaks and discard any suspect item.
• Always turn off the valve on the gas cylinder when you
have finished welding.
Further information is available in publication HSG118
'The safe use of compressed gases in welding, flame
cutting and allied processes', which may be obtained
from the Health & Safety Executive.
Welding and earth return cables
• Earth return and electrode holder cables must have a
cross sectional area of at least 35mm2.
• Only use copper cables, the use of Aluminium cables
may have a detrimental effect on the performance of the
machine.
• Regularly inspect welding cables and connectors for
wear abrasion and corrosion. Corroded cables and connectors may overheat and become a fire hazard.
• Ensure that all welding connectors are fully mated, the
connectors should be pushed fully home and then turned
clockwise to lock. If the connectors are not mated fully
they may overheat and become a fire hazard.
• If possible, fasten the earth return clamp directly to the
job to be welded and ensure that the surface is free from
rust and paint.
R5/4000 CCCV
5
SECTION 2 — SPECIFICATION
2.1 - Description
These heavy duty MMA D.C inverter power sources have been designed using the
latest developments in power electronics. Electronic parts are enclosed in a separate sealed compartment for protection from the environment.
This portable, versatile inverter power source responds to changes in the welding arc
much faster than conventional machines resulting in a more stable and controllable
weld pool.
Due to the high efficiency and power factor these units provide energy and cost saving solutions.
The R4000CCCV/R5000CCCV is capable of MIG welding when used with a peripheral
wire feed unit.
2.2 - Technical Specification
Technical data R4000 R5000
Models Available
380-480 Volts 3 Phase
50/60Hz
380-480 Volts 3 Phase
50/60Hz
Input Current at Max Output 24 amps 33 amps
Power Consumption 18.5 KVA 25 KVA
Recommended Mains Fuse
32A slow blow or type
C MCB
40A slow blow or type
C MCB
Mains Cable
4 x 4.0mm² flexible
cable
4 x 4.0mm² flexible cable
Power Factor 0.93 0.93
Max Output Current 400 amps 500 amps
Open Circuit Voltage >75V >80V
Current Control
20-400A Infinitely Variable
20-500A Infinitely Variable
Duty Cycle at 40ºC 70% 70%
Degree of Protection IP23 IP23
Electrode Size 1.6 – 6.3 1.6 – 6.3
Insulation Class F F
H x W x L (mm) 455 x235x500 455 x235x500
Weight (kg) 30 33
R5/4000 CCCV
6
SECTION 3 — INSTALLATION
3.1 Siting the R4000/R5000
•
Site the R4000/R5000 on a clean dry surface, preferable above ground level.
•
Make sure there is at least 20cm clearance
at the front, rear and right side of the machine to allow good circulation of the cooling air.
•
Protect the machine from heavy rain and if
used in hot climates, against direct sunlight.
•
Ensure that the machine is positioned in
such a way that particles created by grinding and cutting operations do not enter the
machine.
Note! Damage caused by metal particles and
water entering the machine will not be covered under warranty.
3.2 Connecting to mains supply
WARNING! All electric shocks are potentially
fatal, a competent electrician should carry
out the fitting of the mains plug.
•
Make sure that the mains supply is of the
correct voltage and current capability for
the machine.
•
Make sure that any extension cables used
are of sufficient current carrying capacity.
•
Make sure that the mains plug and socket
(if fitted) are in good condition and are of
the correct current carrying capacity. If the
machine is wired directly to the mains supply then an isolator switch must be fitted.
Note! See the technical specifications page for
correct supply information
Primary cable length
Long cable lengths may reduce the performance of the machine, the welding arc may
become unstable, especially at higher currents. Ensure the mains cable is not coiled up
during welding as this will reduce the input
voltage to the machine and may cause overheating and degradation of the cable.
3.3 Setting supply voltage tapping
WARNING! All electric shocks are potentially fatal, a competent electrician should carry out any
supply voltage tapping adjustments required.
•
To enable the setting of the supply voltage
tapping, the front panel display cover of the
R4000/R5000 has to be removed.
•
The photograph below shows the voltage tapping set to 415V, with the red wire from the
fuse holder connected to the 415 terminal.
•
This connector can be moved to the required
voltage terminal to select the desired input
voltage.
R5/4000 CCCV
7
SECTION 4 — OPERATION
1. Mode Indication - LEDs to display welding mode.
2. Output Demand Control - Adjusts the machines output current.
3. Mode switch - Selects welding mode when there is no remote connection.
4. Digital Display - Indicates welding current in Amps, welding voltage in Volts and gives an indication
when the machine is over temperature.
5. Off/On switch - Switches the machine on and off when the main 3 Phase isolation switched is in the
on position. Upon switching on, the display will read “4000” or “5000” and the machines output will be
inhibited, after 4 seconds display will clear and the machine is ready to use.
6. Arc force control - Operates in MMA mode only. This control alters the welding dynamics of the ma-
chine to facilitate welding with different types of welding electrodes (e.g. general purpose, celulosic,
low hydrogen and iron powder). Turning towards maximum will increase penetration at the expense of
increased welding splatter, turning towards minimum will reduce penetration but the arc will be
smoother and less fierce.
7. Slope control - Operates in MIG mode only. Used to compensate for voltage drop on long welding
cables.
8. Inductance control - Operates in MIG mode only. Used to refine the arc condition and reduce spat-
ter.
9. -ve weld terminal - Main welding power output connector, negative polarity.
10. Remote control socket - For connection of external remote control, TIG300 external TIG control unit
or wire feed unit. There is no switch for remote operation, plugging an external unit into the socket automatically selects remote operation and disables the internal current control.
11. +ve weld terminal - Main welding power output connector, positive polarity.
12. Auxiliary supply fuse - protects the auxiliary supply from the remote control socket. Fuse type is 20 x
5mm glass body, 6.3A ‘slow blow’ rating.
13. Main supply fuse - Fuse 3.15A slow blow, 32 x 6.3mm ceramic body.
14. Main 3P Isolation switch - Switches the machine on and off.
15. Mains Input - Three phase mains cable.
4.1 - Operating Controls and Connections
12
13
15
14
1
5
7
3
4
6
2
8
9
10
11
R5/4000 CCCV
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SECTION 4 — OPERATION
4.2 Operation
4.2.1 MMA Welding
• For straight polarity welding, connect the electrode holder to the positive weld terminal and the
earth return lead to the negative weld terminal. For reverse polarity welding, reverse these connections.
• Turn the mains switch to the on position, the digital will light and after a 4 second delay the machine
is ready to weld.
• Adjust the current control to the recommended setting for the size and type of welding electrode to
be used.
• Adjust the Arc Force control to your personal preference for the size and type of welding electrode
to be used.
• The R4000/R5000 is suitable for welding all types of electrodes within the current rating of the machine (see Technical Data)
4.2.2 MMA Welding with remote control
• Select welding polarity as in paragraph 4.3.1.
• Plug the control cable supplied with the remote control into the remote control socket on the front of
the R4000/R5000
• Plug the remote control onto the other end of the control cable.
• Adjust the current control on the remote to the recommended setting for the type and size of weld-
ing electrode being used. (The standard New-Arc RC300 remote does not have current settings but is
marked 1 to 10, for the R4000 allow 40A per division and for the R5000 allow 50A per division).
• Turn the mains switch to the on position, the machine is ready to weld.
4.2.3 TIG Welding with TIG unit
• Connect the TIG unit to the R4000/R5000 and the shielding gas supply as per the diagrams in the TIG
unit manual.
• Select welding mode and current by adjusting the controls on the TIG unit with reference to the TIG
unit manual.
• Turn the mains switch on the R4000/R5000 to the on position, the digital displays on the R4000/R5000
and the TIG unit will light up, you are now ready to weld.
4.2.4 MIG Welding with Wire Feed Unit
• Connect the WFU to the R4000/R5000 and the shielding gas supply as per the diagrams in the WFU
unit manual.
• Select welding mode and current by adjusting the controls on the WFU with reference to the WFU
manual.
• Turn the mains switch on the R4000/R5000 to the on position and select MIG on the mode switch, (this
will be automatic if a remote connection is being used). The digital displays on the R4000/R5000 and
the WFU will now light up, you are now ready to weld.
R5/4000 CCCV
9
SECTION 5 — FAULT FINDING AND MAINTAINANCE
5.1 Machine Operation Problems
Most problems with the R4000/R5000 can be overcome
by following the procedures below.
No Digital Display on switch on.
•
Check that the machine is attached to a working
mains supply that it is correctly plugged in and any
isolator switches are closed.
•
Check the condition of the 2A fuse on the rear
panel of the machine and replace if necessary
.
Note : make sure the fuse is replaced with one of the
correct type and rating. It should be a 32 x 6.3mm (1¼”
x ¼”) ceramic bodied type with a rating of 2A ‘slow
blow’
•
Have a competent electrician check that there are
no mains fuses or overload devices interrupted, that
the mains plug is fitted correctly and that there are
no loose wires or connections, check that there are
no breaks in the mains cable.
Digital display lit but no output.
•
Make sure that the display is not reading ‘OT’, if it is,
it means that the R4000/R5000 has overheated, normally by exceeding its ’Duty Cycle’, and the power
stages of the machine have been shut down. In this
case, leave the machine switched on until it has
cooled down, if you turn the machine off, the cooling fans will be turned off also and the cooling
down period will be lengthened considerably.
Note : If the R4000/R5000 is overheating on a regular
basis or at current settings below the maximum, this
would usually indicate that the inside of the machine is
choked with dust and therefore not being cooled correctly. For information about cleaning the dust out of
the R4000CC/R5000CC please refer to the relevant part
of section 5.3.2, the three monthly service schedule.
TIG unit is not working.
•
Check the condition of the 6.3A fuse on the rear
panel of the machine and replace if necessary.
•
Check interconnection cables are correctly fitted.
(Positive to positive, negative to negative).3
MIG Unit is not working.
•
Check the condition of the 6.3A fuse on the rear
panel of the machine and replace if necessary.
Note : make sure the fuse is replaced with one of the correct type and rating. It should be a 20 x 5mm glass bodied
type with a rating of 6.3A ‘slow blow’.
Any welding problems not covered above must be brought
to the attention of a qualified Welding Engineer, if the problem still persists have the R4000/R5000 checked by a trained
New-Arc service engineer.
5.2 Welding Problems
MMA
If problems with the R4000/R5000’s operation while welding
are experienced, first refer to the information in paragraph
3.2 in the installation section and paragraphs 4.3.1 and 4.3.2
in the operating section and the fault finding procedure earlier in this section.
•
Most problems with MMA welding are the result of not
setting the correct welding parameters for the welding
rod being used. All welding rod packets have information on them in symbolic format , giving suitable current
range, polarity and type of weld (normally called
'position'). If you are in doubt about what these symbols
mean, ask your welding rod supplier to explain them.
Choose an initial current setting towards the middle of
the quoted range and if necessary practice on a piece
of scrap the same thickness as the job to be welded.
TIG
•
If problems are experienced whilst TIG welding, please
consult the fault finding and maintenance section in the
TIG unit instruction manual.
•
Any welding problems not covered above must be
brought to the attention of a qualified Welding Engineer, if the problem still persists have the R4000/R5000
checked by a trained New-Arc service engineer.
•
MIG
If problems are experienced whilst MIG welding, please
consult the fault finding and maintenance section of the
WFU instruction manual.
Any welding problems not covered above must be brought
to the attention of a qualified Welding Engineer, if the problem still persists have the R4000/R5000 checked by a trained
New-Arc service engineer.
R5/4000 CCCV
10
SECTION 5 — FAULT FINDING AND MAINTAINANCE
5.3 Maintenance
Note! All Electric shocks are potentially fatal, switch off the machine and unplug from the
mains supply before carrying out any maintenance work.
It is very important that the R4000/R5000 is regularly maintained. The amount of use and the
working environment must be taken into account when scheduling the maintenance periods.
Careful use and regular preventative maintenance will prolong the life of the machine and
ensure trouble free operation.
5.3.1 Weekly
•
Clean the exterior of the machine
•
Inspect the machines exterior for obvious signs of damage.
•
Check the condition of the welding cable, earth clamp and welding output connectors for damage and any sign of over-heating
•
Check the condition of the mains cable an plug.
5.3.2 Three monthly
As per the weekly schedule, plus:-
•
Remove the lid from the machine and remove the build up of dust and debris from
inside the machine using, either, compressed air at low pressure or an industrial
type vacuum cleaner.
•
Make a thorough visual inspection of the interior of the machine, look particularly
for pieces of welding wire, or stubs of old welding rods that may have got through
the cooling air intakes.
•
Check the condition of the mains input connector, look for loose terminal block
screws and make sure the sheath of the mains cable is still clamped securely in the
combined cable entry/clamp. Make sure the earth wire is still securely fastened to
the earth stud.
•
Check the condition of the welding output connectors, look for any signs of discoloration due to overheating, this is generally caused by poor connection of the
welding power leads due to loose connection bolts inside the set, or poor quality
welding connectors on the electrode holder or earth return lead and can be a
common cause of welding set failure.
5.3.3 Annually
As per the three monthly schedule, plus :-
•
Have the machines calibration checked, if necessary have the machine re-calibrated
by a New-Arc trained technician.
R5/4000 CCCV
11
SECTION 6 — ELECTRICAL DIAGRAMS
6.1 - System Diagram
R5/4000 CCCV
12
SECTION 7—PARTS BREAKDOWN
7.1 - Component Locations
11
7
12
10
8
9
4
1
2
5
6
3
R5/4000 CCCV
13
SECTION 7—PARTS BREAKDOWN
7.1 - Component Locations
23
24
26
25
27
28
13
16
17
18
19
14
15
21`
20
22
R5/4000 CCCV
14
SECTION 7—PARTS BREAKDOWN
7.2 - Parts list for R4000CCCV/R5000CCCV
Item no.
Description
Part No.
3
1 Bridge handle (x 2) M01084
2 24mm diameter knob M00464A
3 20mm diameter knob M00033A
4 On/Off switch M70069A
5 70/90 panel mount Dix socket (x 2) M09916
6 Remote socket assembly M90762
7 Auxiliary transformer
M01408
8 Fuse holder
Fuse 3.15A slow blow, 32 x 6.3mm ceramic body
M01088/89
M00020A
9 Fuse holder
Fuse 6.3A slow blow, 20 x 5mm glass body
M00273
M00379
10 Soft start relay M70026
11 Diode bridge M60057
12 Soft start resistor assembly M90765
13 Mains Switch — 3 phase power
M70071
14 Control PCB M90744
15 Display PCB M90771
16
IGBT (x 2)
R4000
R5000
M60245
M60246
17 IGBT Gate PCB (x 2)
M90843
18 Snubber Capacitors (x 2)
M40794
19 Power Resistors
M90999
20
Capacitor Assembly
M90456
21 Current transducer M60112
22
Current transformer M01083
23 Filter Capacitor assembly (x 3) M91123
24 Diode module (x 4) M60121
25 Main inductor M01094
26 Cooling fan (x 2) M00371
27 Main transformer
R4000
R5000
M01093
M00878
28 De-coupling capacitor M90818
When ordering spare components please quote the serial number of the unit for which the parts are intended.
Head Office
6 Wincomblee Road
Walker Riverside
Newcastle upon Tyne
NE6 3PF
Tel: +44 (0)191 295 0111
Fax: +44 (0)191 295 0077
Website: www.newarc.co.uk
e-mail: sales@newarc.co.uk
Aberdeen Office
Unit 23 Kirkhill Place
Kirkhill Industrial Estate, Dyce
Aberdeen
AB21 0GU
Tel: +44 (0)1224 771063
Fax: +44 (0)1224 724536
Guarantee
New-Arc Equipment Ltd warrants that its goods and services are guaranteed to meet the specific
performance under the stated conditions of use. New-Arc cannot be held responsible for general
wear and tear or for failure occurring due to misuse or abuse arising out of circumstances outside
the stated conditions of use. The stated conditions of use are that considered normal industrial practice and are not exhaustive. Each machine is identified with a unique serial number and accompanied with the guarantee. New-Arc reserve the right to a) Repair. b)Replace. c)Authorise the reasonable cost of repair or replacement at an approved New-Arc service agent. d)Credit for any purchased equipment (less reasonable depreciation for actual use and condition) at its entire discretion. This in no way affects your rights as a consumer. The guarantee is enclosed with each machine.
Waiver
Whilst every endeavour is made to ensure the details of this document are correct at the date of
print. New-Arc accepts no liability for correctness in respect of any impending change in legislation
or health and safety requirements. New-Arc also reserve the right to amend the detail of the document content without any notification to the consumer. If reference is made to New-Arc while utilising the document for spare parts purchase or instruction please advise the revision of the document
to ensure correctness of information.
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