Rights reserved to alter specifications without notice.
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1DIRECTIVE
ESAB AB, Welding Equipment, SE--695 81 Laxå, Sweden, gives its unreserved guarantee that unit
FeedMech 4804 / FeedControl from serial number 606 are constructed and tested in compliance with
the standard EN 60974--1/--5 and EN 60974--10 (Class A) in accordance with the requirements of directive (2006/95EC) and (2004/108/EEC).
Kent Eimbrodt
Global Director
Equipment and Automation
2SAFETY
Users of ESAB welding equipment have the ultimate responsibility for ensuring that anyone who
works on or near the equipment observes all the relevant safety precautions. Safety precautions
must meet the requirements that apply to this type of welding equipment. The following recommendations should be observed in addition to the standard regulations that apply to the workplace.
All work must be carried out by trained personnel well--acquainted with the operation of the welding
equipment. Incorrect operation of the equipment may lead to hazardous situations which can result
in injury to the operator and damage to the equipment.
1.Anyone who uses the welding equipment must be familiar with:
S its operation
S location of emergency stops
S its function
S relevant safety precautions
S welding
2.The operator must ensure that:
S no unauthorized person is stationed within the working area of the equipment when it is
started up.
S no--one is unprotected when the arc is struck
3.The workplace must:
S be suitable for the purpose
S be free from drafts
4.Personal safety equipment
S Always wear recommended personal safety equipment, such as safety glasses, flame--proof
clothing, safety gloves.
S Do not wear loose--fitting items, such as scarves, bracelets, rings, etc., which could become
trapped or cause burns.
5.General precautions
S Make sure the return cable is connected securely.
S Work on high voltage equipment may only be carried out by a qualified electrician.
S Appropriate fire extinquishing equipment must be clearly marked and close at hand.
S Lubrication and maintenance must not be carried out on the equipment during operation.
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WARNING
Arc welding and cutting can be injurious to yourself and others. Take precausions when welding.
Ask for your employer’s safety practices which should be based on manufacturers’ hazard data.
ELECTRIC SHOCK - Can kill
SInstall and earth the welding unit in accordance with applicable standards.
SDo not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
SInsulate yourself from earth and the workpiece.
SEnsure your working stance is safe.
FUMES AND GASES - Can be dangerous to health
SKeep your head out of the fumes.
SUse ventilation, extraction at the arc, or both, to take fumes and gases away from your breathing zone
and the general area.
ARC RAYS - Can injure eyes and burn skin.
SProtect your eyes and body. Use the correct welding screen and filter lens and wear protective
clothing.
SProtect bystanders with suitable screens or curtains.
FIRE HAZARD
SSparks (spatter) can cause fire. Make sure therefore that there are no inflammable materials nearby.
NOISE - Excessive noise can damage hearing
SProtect your ears. Use earmuffs or other hearing protection.
SWarn bystanders of the risk.
MALFUNCTION - Call for expert assistance in the event of malfunction.
Read and understand the instruction manual before installing or operating.
PROTECT YOURSELF AND OTHERS!
CAUTION!
This product is solely intended for arc welding.
CAUTION!
Class A equipment is not intended for use in residential locations where
the electrical power is provided by the public low--voltage supply
system. There may be potential difficulties in ensuring electromagnetic
compatibility of class A equipment in those locations, due to conducted
as well as radiated disturbances.
Do not dispose of electrical equipment together with normal waste!
In observance of European Directive 2002/96/EC on Waste Electrical and Electronic
Equipment and its implementation in accordance with national law, electrical equipment
that has reached the end of its life must be collected separately and returned to an
environmentally compatible recycling facility. As the owner of the equipment, you should
get information on approved collection systems from our local representative.
By applying this European Directive you will improve the environment and human
health!
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CAUTION!
Read and understand the instruction manual before
installing or operating.
ESAB can provide you with all necessary welding protection an d accessories.
3INTRODUCTION
The wire feed unit consist of a drive unit (FeedMech 4804) and a separate electronic
unit (FeedControl).
The wire feed unit is intended for MIG/MAG welding along with robotic equipment.
NOTE!
The wire feed unit utilizes the robot’s safety system to obtain maximum interference protection.
ESAB’s accessories for the product can be found on page 20.
3.1Equipment
The wire feed unit is supplied with an instruction manual, and the drive unit with a
sticker with recommended wear parts.
4TECHNICAL DA TA
FeedMech 4804FeedControl
Power supply42 V 50--60 Hz42 V 50--60 Hz
Power requirement378 V A378 V A
Motor current I
Settings data
Wire feed speed
Gun connectionEURO
Wire dimension
Fe
Ss
Al
Cored wire
Operating temperature-- 1 0 t o + 4 0 ˚C-- 1 0 t o + 4 0 ˚C
Weight9.7 kg4.9 kg
Dimensions (l x b x h)383 x 161 x 287 mm330 x 118 x 320 mm
Shielding gas
max pressure
max
9.0 A9.0 A
0.8 -- 25.0 m/min
0.6--2.4 mm
0.6--2.4 mm
1.0--1.6 mm
0.8--2.4 mm
Gases for MIG/MAG--welding
5Bar
Gases for MIG/MAG--welding
5Bar
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FeedControlFeedMech 4804
Maximum permissible load at
60% intermittens
100% intermittens
Enclosure classIP2XIP2X
Duty cycle
The duty cycle refers to the time as a percentage of a ten--minute period that you can weld at a certain load without overloading. The duty cycle is valid for 40˚C.
The duty cycle is valid for 40˚C.
Enclosure class
The IP code indicates the enclosure class, i. e. the degree of protection against penetration by solid
objects or water. Apparatus marked IP2X are intended for indoor use.
500 A
280 A
500 A
280 A
5INSTALLATION
The installation must be executed by a professional.
Note!
Mains supply requirements
High power equipment may, due to the primary current drawn from the mains supply, influence the
power quality of the grid. Therefore connection restrictions or requirements regarding the
maximum permissible mains impedance or the required minimum supply capacity at the interface
point to the public grid may apply for some types of equipment (see technical data). In this case it
is the responsibility of the installer or user of the equipment to ensure, by consultation with the
distrubution network operator if necessary, that the equipment may be connected.
WARNING!
When welding in an environment with increased electrical danger, only power
sources intended for this environment may be used. These power sources are
marked with the symbol
5.1Terminating resistor
The ends of the CAN bus must be fitted with terminating
resistors to avoid communication interference.
The terminating resistor is delivered with the power
source.
One end of the CAN bus is at the control panel (U8),
which has an integral terminating resistor.
The other end is at the FeedControl and must be
fitted with the terminating resistor, as shown on the
right.
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5.2Example of a robotic welding system
6OPERATION
General safety regulations for the handling of the equipment can be found on
page 3. Read through before you start using the equipment!
WARNING!
Rotating parts can cause injury, take great care.
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6.1Connections
FeedMech 4804
1Switch for gas purging9Connection to drive unit, 4 poles
2Switch for reversed wire feed10Connection to drive unit, 8 poles
3Switch for cold wire feed11Connection for coolant from power source
(cooling unit), BLUE
4Connection for coolant to welding gun,
BLUE
5Connection for coolant from welding gun,
RED
6Outlet connection for spatter removal air14Connection for shielding gas in
7Connection for signals to/from robot
welding gun
8Connection for welding gun16Rating plate
12Connection for coolant to power source
(cooling unit), RED
13Inlet connection for spatter removal air
15Connection for welding current from
electronic unit (OKC)
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FeedControl
1White indicating lamp – Power supply ON9Rating plate
2Connection from electronic unit to drive
unit
3Connection from electronic unit to drive
unit
4Outlet connection for spatter removal air12Connection for shielding gas, in
5Connection for coolant to welding gun,
BLUE
6Connection for welding current from drive
unit (OKC)
7Connection for coolant from welding gun,
RED
8Connection for shielding gas, out16Connection for coolant to power source
10Connection for terminating resistor or
forwarding to next wire feed unit
11Connection for control cable from power
source
13Inlet connection for spatter removal air
14Connection for coolant from power source
(cooling unit), BLUE
15Connection for welding current from power
source (O KC)
(cooling unit), RED
Symbol and function explanations
Gas purging
Used to measure the gas flow or to flush the gas hoses to clean them of any air and
moisture before commencing welding. Gas purging is carried out with the voltage
and wire feed switched off.
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Reversed wire feed
Used to reverse the wire, for example when replacing the wire bobbin.
Inching
Used when wire is to be fed without switching on the welding voltage.
Inlet spatter removal air
Outlet spatter removal air
Used for spray--cleaning the contact tip on the welding gun.
Shielding gas in
Shielding gas out
6.2Gas flow guard (if installed)
The gas flow monitor interrupts the ongoing welding process if the gas flow drops
below 3.5 l/min. When this occurs, an error message is displayed via the control unit.
6.3Wire feed pressure
Start by making sure that the wire moves smoothly through the wire guide. Then
set the pressure of the wire feeder’s pressure rollers. It is important that the
pressure is not too great.
Fig 1Fig 2
To check that the feed pressure is set correctly, you can feed out the wire against
an insulated object, e.g. a piece of wood.
When you hold the gun approx. 5 mm from the piece of wood (fig. 1) the feed
rollers should slip.
If you hold the gun approx. 50 mm from the piece of wood, the wire should be
fed out and bend (fig. 2).
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6.4Replacing and inserting wire
SOpen the side panel.
SDisconnect the pressure sensor by folding it backwards, the pressure rollers
slide up.
SStraighten out the new wire 10--20 cm. File away burrs and sharp edges from the
end of the wire before inserting it into the wire feed unit.
SMake sure that the wire goes properly into the feed
roller’s track and into the outflow nozzle or wire guide.
SSecure the pressure sensor.
SClose the side panel.
6.5Changing feed rollers
SPush down the pressure device ( 1) and pull it
towards you and upwards.
SPull out the bogey (2).
SRemove the socket--head bolts (3) on the
intermediate nozzle and remove it.
SLoosen the bolt holding the outlet nozzle (4)
and push the nozzle back.
SRemove the socket--head bolt (5) in the centre
SSlacken the two socket--head bolts (6) by half a turn.
SPull out the feed rollers (7).
Reassemble in the reverse order.
Selecting the correct groove in the
feed rollers
Place no, one or two carrier washers
between the outer washer and the feed
rollers. NB: Replace the entire bogey
when changing the pressure rollers (8).
7MAINTENANCE
Regular maintenance is important for safe, reliable operation.
CAUTION!
All guarantee undertakings from the supplier cease to apply if the customer himself
attempts any work in the product during the guarantee period in order to rectify any faults.
7.1Inspection and cleaning
Wire feed unit
Check regularly that the wire feed unit is not clogged with dirt.
SCleaning and replacement of the wire feed unit mechanism’s worn parts should
take place at regular intervals in order to achieve trouble--free wire feed. Note
that if pre--tensioning is set too hard, this can result in abnormal wear on the
pressure roller, feed roller and wire guide.
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Welding gun
SCleaning and replacement of the welding gun’s wear parts should take place at
regular intervals in order to achieve trouble--free wire feed. Blow the wire guide
clean regularly and clean the contact tip.
8ORDERING SPARE P ARTS
FeedMech4804 / FeedControl is designed and tested in accordance with the international and European standards IEC/EN 60974--1, 60974--5 and 60974--10. It is the obligation of the service unit which has carried out the service or repair work to make sure
that the product still conforms to the said standard.
Spare parts may be ordered through your nearest ESAB dealer, see the last page of
this publication.