Kemppi master 5001 User manual

MASTER
5001
1913270E
0541
Operation instructions • english
Gebrauchsanweisung • deutsch
Gebruiksaanwijzing • nederlands
Manuel d’utilisation • français

2 – MASTER 5001/0541 © KEMPPI OY
CONTENTS
1. PREFACE ...................................................................................................................... 3
1.1. INTRODUCTION ......................................................................................................... 3
1.2. PRODUCT INTRODUCTION ...................................................................................... 3
1.3. OPERATION SAFETY ................................................................................................. 3
2. INSTALLATION .............................................................................................................. 4
2.1. INSTALLATION ........................................................................................................... 4
2.2. SITING THE MACHINE ............................................................................................... 6
2.3. CONNECTION TO MAIN SUPPLY .............................................................................. 6
2.4. WELDING AND EARTH CABLES ............................................................................... 7
2.5. MOUNTING OF POWER UNIT TO TRANSPORT CARRIAGE .................................. 7
3. OPERATION CONTROL SWITCHES AND POTENTIOMETERS AND THEIR USE .... 8
3.1. MAIN SWITCH I/O ....................................................................................................... 8
3.2. PILOT LAMPS ............................................................................................................. 8
3.3. LOCAL OR REMOTE CONTROL OF WELDING CURRENT ..................................... 8
3.4. OPERATION OF COOLING FAN ................................................................................ 8
3.5. CONTROL FOR MMA WELDING DYNAMICS ........................................................... 9
4. MAINTENANCE ............................................................................................................11
4.1. CABLES .....................................................................................................................11
4.2. POWER SOURCE......................................................................................................11
4.3. REGULAR MAINTENANCE ...................................................................................... 12
5. OPERATION DISTURBANCES ................................................................................... 12
6. DISPOSAL OF THE MACHINE ................................................................................... 13
7. ORDER NUMBERS ..................................................................................................... 13
8. TECHNICAL DATA ...................................................................................................... 14
9. TERMS OF GUARANTEE ........................................................................................... 15

MASTER 5001/0541 – 3
© KEMPPI OY
1. PREFACE
1.1. INTRODUCTION
Congratulations on having purchased this product. Properly installed Kemppi products should
prove to be productive machines requiring maintenance at only regular intervals. This manual is
arranged to give you a good understanding of the equipment and its safe operation. It also contains
maintenance information and technical specifications. Read this manual from front to back before
installing, operating or maintaining the equipment for the first time. For further information on
Kemppi products please contact us or your nearest Kemppi distributor.
The specifications and designs presented in this manual are subject to change without prior
notice.
In this document, for danger to life or injury the following symbol is used:
Read the warning texts carefully and follow the instructions. Please also study the Operation safety
instructions and respect them when installing, operating and servicing the machine.
1.2. PRODUCT INTRODUCTION
Master 5001 is a 3-phase inverter power source for demanding professional use. Master 5001
is suitable for MMA welding and carbon arc gouging. It is also suitable as power source for arc
powered wire feeders. Master 5001 can also be used as power source for scratch-start/contact TIG.
Due to its high effect and excellent welding properties as well as due to its small size and light
weight it is very suitable for site welding as well as for repair and production welding.
In order to enable a good following of welding current the machine is equipped with well-visible
displays for welding current and welding voltage. Properties of Master 5001 can be improved with
remote control units and transport carts which are delivered as accessory.
1.3. OPERATION SAFETY
Never watch the arc without a face shield designed for arc welding!
The arc damages unprotected eyes! The arc burns unprotected skin!
Protect yourself and the surroundings against the arc and hot spray!
Remember general fire safety!
Pay attention to the fire safety regulations. Welding is always classified as a fire risk operation.
Welding where there is flammable or explosive material is strictly forbidden. If it is essential to
weld in such an area remove inflammable material from the immediate vicinity of the welding site.
Fire extinguishers must always be on site where welding is taking place.
Note! Sparks may cause ignition many hours after completion of welding.
Watch the mains voltage!
Take care of the cables - the connection cable must not be compressed, touch sharp edges or hot
work pieces. Faulty cables are always a fire risk and highly dangerous. Do not locate the welding
machine on wet surfaces. Do not take the welding machine inside the work piece (i.e. in containers,
cars etc.)
Ensure that neither you nor gas bottles or electricial equipment are in contact with live wires or
connections!

4 – MASTER 5001/0541 © KEMPPI OY
P21
P22 P23 R22
S21
R21
P21 Current meter
P22 Voltage meter
P23 Display for adjustment value of MMA welding dynamics -9..0...9
R21 Ajustment of welding current
R22 Adjustment of MMA welding dynamics
S21 Selection for local/remote control/TIG/MIG
Do not use faulty welding cables. Isolate yourself by using dry and not worn out protective clothes.
Do not weld on wet ground. Do not place the welding cables on the power source or other electricial
equipment.
Watch the welding fumes!
Ensure that there is sufficient ventilation. Follow special safety measures when you weld metals
which contain lead, cadmium, zinc, mercury and beryllium.
Note the danger caused by special welding jobs!
Watch the fire and explosion danger when welding container type work pieces.
2. INSTALLATION
2.1. INSTALLATION

MASTER 5001/0541 – 5
© KEMPPI OY
H12
H11
S11
X11
X13
X14
01
F11
F11 Fuse for remote control connection 1,0 A delayed
H11 Signal lamp I/O
H12 Warning lamp for thermal shield
S11 Main switch I/O
X11 Welding and earth connection
X 13 Welding and earth connection
X14 Remote control connection
01 Inlet of mains cable

6 – MASTER 5001/0541 © KEMPPI OY
2.2. SITING THE MACHINE
Site the machine on a stationary, horizontal, dry base from which there does not come any dust
etc. into cooling air (front grate).
– Preferably site the machine somewhat higher above the floor level.
– See to that in front of the machine as well as at the rear of the machine there is at least 20
cm free distance to allow good circulation of the cooling air through the machine.
– Protect the machine against heavy rain and in hot circumstances against direct sunshine.
Ensure free circulation of the cooling air.
Degree of protection of machine IP23 allows at its maximum the water jet coming in
60° angle to hit machine´s outer covering.
See to that the machine is positioned away from the line of particle spray, created by grinding
tools etc.
2.3. CONNECTION TO MAIN SUPPLY
Master 5001 power source is delivered equipped with 5 m mains cable without plug. If local
electricity regulations of operating country are stating otherwise, the mains cable should be replaced
in conformity with them.
Connection of the mains cable and mounting of the plug should only be carried out by
a competent electrician.
Remove machine´s right side plate for the time you are mounting mains cable.
By change of the mains cable pay attention to the following:
The cable is entered into the machine through the inlet ring on the rear panel of the machine and
fastened with a cable clamp. The phase conductors of the cable are coupled to connectors L1, L2
and L3. The earth protection coloured green-yellow is coupled to connector.
If you are using 5-lead cable, you must connect neutral conductor with terminal N.
This equipment’s electromagnetic compatibility (EMC) is designed for use in an
industrial environment. Class A equipment is not intended for use in residential location
where the electrical power is provided by the public low-voltage supply system.

MASTER 5001/0541 – 7
© KEMPPI OY
Sizes of the mains cables and fuseratings for the machine at 100 % dury cycle are specified in the
table below:
Master 5001
Rated voltage 3~ 400 V
Mains voltage range 400 V ± 10 %
Fuses, delayed 35 A
Connection cable mm² 4 x 6,0 S
In cables of S type there is a protective grounding conductor coloured green-yellow.
2.4. WELDING AND EARTH CABLES
Use only copper cables with cross-sectional area of at least 50 …95 mm².
In enclosed table are shown typical load capacities of rubber insulated copper cables, when ambient
temperature is 25ºC and lead temperature is 85 ºC.
Cable Duty cycled ed Voltage loss /10 m
100% 60% 30%
50mm² 285 A 370 A 520 A 0,35 V/ 100 A
70 mm² 355 A 460 A 650 A 0,25 V/ 100 A
95 mm² 430 A 560 A 790 A 0,18 V/ 100 A
Do not overload welding cables due to voltage losses and heating.
Fasten the earthing press of the return current cable carefully, preferably direct onto the piece to
be welded. The contact surface of the press should always be as large as possible.
Clean the fastening surface from paint and rust.
2.5. MOUNTING OF POWER UNIT TO TRANSPORT CARRIAGE
Read mounting instructions for Master 5001 power source delivered with carriage T12. Fasten
power source carefully of that the equipment should withstand lifting with lifting device.

8 – MASTER 5001/0541 © KEMPPI OY
3. OPERATION CONTROL SWITCHES AND
POTENTIOMETERS AND THEIR USE
3.1. MAIN SWITCH I/O
When you use the switch into I-position, pilot lamp H11 on the front wall is lighted and the machine
is ready for use.
Always start and switch off the machine with the main switch, never use the mains plug as a
switch.
3.2. PILOT LAMPS
The pilot lamps of the machine report about the electric operation:
The green pilot lamp H11 for readiness for use is always lighted, when the machine
is connected to mains supply and the main switch is in I-position.
Yellow pilot lamp H12 of thermal protection is lighted when thermostat has released
due to overheating of machine. The cooling fan is cooling down the machine and when
the pilot lamp is switched off, the machine is again ready for welding.
3.3. LOCAL OR REMOTE CONTROL OF WELDING CURRENT
You can control welding current either from local control unit R21 of the machine or from remote
control unit C100C which is connected to remote control connector X14. When you are using the
remote control unit, the switch S21 must be in remote control position:
During the control, the set value of welding current can be seen on current meter display P21
and at the same time the no-load voltage of the machine can be seen on voltage display. During
welding the current meter P21 and the voltage meter P22 show welding current respectively
welding voltage.
Note! Voltage which can be seen during welding on display P22, is terminal voltage of machine,
which is voltage between terminals X11 and X13.
Accuracy of digital meter is as follows:
Accuracy of current true value in respect to real value is ±2,5%, ±2A.
Accuracy of voltage true value in respect to real value is ±2,5 %, ±0,2 V.
Depending on welding cable length and copper cross-section, real arc voltage and meter display
might differ many volts from each other. Error will increase when current is growing. See table in
paragraph “welding and earthing cables”. In current measurement the same error won´t appear.
3.4. OPERATION OF COOLING FAN
In Master 5001 there are two simultaneously operating fans.
– Fan is started for a moment, when main switch is placed into position I.
– Fan is started after welding start after machine has been heated and runs still for 1…10 min
time after welding stop.
– On no-load fan is started in intervals of ca. half an hour for a minute´s time.

MASTER 5001/0541 – 9
© KEMPPI OY
S21
R21
P21
P22 P23 R22
3.5. CONTROL FOR MMA WELDING DYNAMICS
MMA welding dynamics is controlled with potentiometer R22. The potentiometer R22 has the
reference scale -9…0…9 can be seen also on the V display P22, which otherwise is showing no-
load/welding voltage. Setups for dynamics remain on the display still for approx. 3 s after you
have finished the control.
With control of MMA dynamics you can influence on arc in different situations. When you make
the arc harder, blow and at the same time spatter is increased.
-9…-1 Softer arc. Object: minimizing spatter in welding at upper end of recommended currents
for electrode.
0 Factory setup. Normal setting for all electrode types.
1…9 Harder arc. Object: eg cellulose covered electrodes (9) and thin stainless electrodes in welding
at lower end of recommended currents for electrode.
P21 Current meter
P22 Voltage meter
P23 Display for adjustment value of MMA welding dynamics -9…0…9.
R21 Adjustment of welding current
R22 Adjustment of MMA welding dynamics
S21 Selection for local/remote control/TIG/MIG

10 – MASTER 5001/0541 © KEMPPI OY
C100C C100D
R61
R61
R62
S 21
welding cable arc powered
wire feeder
C100C
Control of MMA welding current (R61), reference scale 1…10
C100D
Rough control (R61), reference scale 1…10, and fine control +/- (R62) for MMA welding current.
Accessoiries and cables
MMA and arc powered MIG
MMA and scratch-start/contact TIG
Use of arc powered wire feeder
Master 5001 can be connected as power source to an arc powered wire feeder. In that case set
switch S21 of control panel to centre position. Power source operates then on constant voltage
characteristic curves (cv), which provides the best welding properties for arc powered units. Set
voltage is set with potentiometer or with remote control unit, if installed.
Scratch-start/contact TIG
Master 5001 can be used in TIG welding by switching the jumpers of control card to position TIG
(see jumper settings below). TIG welding is selected by setting switch S21 to centre position. Set
value of TIG is selected with control panel or with remote control unit, if installed. When TIG
electrode touches work piece welding current is on so called pilot current, which is 25 A. Current
is raised or reduced to actual welding current by pulling the electrode away from work piece. Note
that there is always voltage in the electrode when unit is set on TIG welding.
Jumpers
Jumpers on card A001:
Jumper 2 MIG/TIG
Jumpers 5 - 7 not in use
Jumpers 1, 3, 4 reserved (to be left open)