ESAB EPP-601 User manual

Brand: ESAB

Model: EPP-601

Category: Welding System

Type: User manual

Valid for serial no. 015-xxx-xxxx0558 007 967 GB 20110707

EPP-601

Instruction manual

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TOCe

Rights reserved to alter specifications without notice.

1SAFETY 4...........................................................

2 INTRODUCTION 6...................................................

2.1 Equipment 6................................................................

2.2 Properties and functions 6....................................................

3 TECHNICAL DATA 6.................................................

4 INSTALLATION 7....................................................

4.1 Lifting instructions 8.........................................................

4.2 Delivery check 8............................................................

4.3 Location 8..................................................................

4.4 Mains supply 9..............................................................

4.4.1 Recommended fuse sizes and minimum cable area 9.......................

4.4.2 Connecting the incoming mains cable 9....................................

4.5 Supply and return cables (supplied by the customer) 9...........................

4.5.1 Connecting supply and return cables, power source in single operation 9.......

4.6 Parallel installation 11.........................................................

4.6.1 Parallel connection of two power sources 11................................

4.6.2 Marking with two parallel connected power sources 13........................

5 OPERATION 15.......................................................

5.1 Connections and control devices 15............................................

5.1.1 Key to symbols 15.......................................................

5.1.2 Control panel 15.........................................................

5.1.3 Operate modes: cutting with high respectively low current and marking mode 17.

5.2 Starting cutting or marking 18..................................................

6 MAINTENANCE 19....................................................

6.1 Inspection and cleaning 19....................................................

6.2 Lubrication 20...............................................................

7 FAULT-TRACING 20..................................................

8 ORDERING SPARE PARTS 21.........................................

DIAGRAM 23............................................................

ORDERING NUMBER 36.................................................

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1SAFETY

Users of ESAB 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 equipment. The following recommendations should be ob-

served 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 equip-

ment. Incorrect operation of the equipment may lead to hazardous situations which can result in in-

jury to the operator and damage to the equipment.

1. Anyone who uses the equipment must be familiar with:

S its operation

S location of emergency stops

S its function

S relevant safety precautions

S welding and cutting

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

Read and understand the instruction manual before installing or operating.

Arc welding and cutting can be injurious to yourself and others. Take precausions when welding and

cutting. Ask for your employer's safety practices which should be based on manufacturers' hazard

data.

ELECTRIC SHOCK - Can kill

S Install and earth the unit in accordance with applicable standards.

S Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.

S Insulate yourself from earth and the workpiece.

S Ensure your working stance is safe.

FUMES AND GASES - Can be dangerous to health

S Keep your head out of the fumes.

S Use 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.

S Protect your eyes and body. Use the correct welding screen and filter lens and wear protective

clothing.

S Protect bystanders with suitable screens or curtains.

FIRE HAZARD

S Sparks (spatter) can c ause fire. Make sure therefore that there are no inflammable materials nearby.

NOISE - Excessive noise can damage hearing

S Protect your ears. Use earmuffs or other hearing protection.

S Warn bystanders of the risk.

MALFUNCTION - Call for expert assistance in the event of malfunction.

PROTECT YOURSELF AND OTHERS!

WARNING

Do not use the power source for thawing frozen pipes.

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.

CAUTION

This product is solely intended for plasma cutting.

CAUTION

Read and understand the instruction manual before

installing or operating.

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Dispose of electronic equipment at the recycling facility!

In observance of European Directive 2002/96/EC on Waste Electrical and Electronic

Equipment and its implementation in accordance with national law, electrical and/or

electronic equipment that has reached the end of its life must be disposed of at a

recycling facility.

As the person responsible for the equipment, it is your responsibility to obtain

information on approved collection stations.

For further information contact the nearest ESAB dealer.

2 INTRODUCTION

Plasma power source EPP 601 is designed for marking and automated high speed

plasma cutting. It can be used with, for example, torches PT-15, PT-19XLS, PT-600

and PT-36 together with Smart Flow II, a computer controlled system for gas control

and reconnection.

2.1 Equipment

The power source is supplied with:

S Instruction manual

2.2 Properties and functions

S Fan cooled

S Protection in the event of connecting the incorrect power supply

S Thermal protection in the event of overload

S Can be connected in parallel to increase the current range.

3 TECHNICAL DATA

EPP-601

Mains voltage

3~ 380 V, 400 V, +/–10 %, 50 Hz

Primary current I

max

217 A at 380 V, 206 A at 400 V

Setting range 10 A / 84 A - 600 A / 200 V

Permitted load, duty cycle 100 % 600 A / 200 V

Output data, duty cycle 100 %

cutting with high current

cutting with low current

marking with low current

50 A at 100 V / 600 A at 200 V

35 A at 94 V / 100 A at 120 V

10 A at 84 V / 100 A at 120 V

Max power consumption

at intermittence factor 100 %

120 kW

Open-circuit voltage U

cutting with high current

cutting with low current

marking

406 V at 380 V

427 V at 400 V

430 V at 380 V

427 V at 400 V

414 V at 380 V

413 V at 400 V

360 V at 380 V

369 V at 400 V

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EPP-601

Operating temperature -10to40°C

Transportation temperature -20to55°C

Dimensions, l x w x h 114.3 x 94.6 x 102,2 mm

Weight 850 kg

Enclosure class IP 23

Duty cycle

The duty cycle refers to the time as a percentage of a ten-minute period that you can weld or cut at

a certain load without overloading. 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 IP21 are intended for indoor use.

4 INSTALLATION

The installation must be carried ou t by a p rofession al.

WARNING!

ELECTRIC SHOCKS CAN KILL Take precautionary measures against electric

shocks. Ensure that all power supplies are disconnected

– switch off the switch at

the wall socket and pull out the equipment's power cable from the socket before

making any electrical connections in the power source.

WARNING!

It is very important that the chassis is connected to the electric protective earth, to

prevent electric shocks and electrical accidents. Ensure that protective earth is not

connected to any phase conductors by mistake.

CAUTION

This product is intended for industrial use. In a domestic environment this product may

cause radio interference. It is the user's responsibility to take adequate precautions.

CAUTION!

Conducting dust and contaminants inside the power source can cause electrical flashovers.

This can damage the equipment. If dust is allowed to collect inside to the power source,

short-circuits can occur (see the chapter regarding maintenance).

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4.1 Lifting instructions

WARNING

The product must be lifted using a fork

lift truck or as follows:

4.2 Delivery check

1. Remove the packaging and inspect the equipment for damage that was not

immediately apparent upon reception of the delivery.

Immediately report any damage to the delivery company.

2. Check that here ar e no loose parts in the packaging before it is r ecycled.

3. Check the cooling air gaps and ensure that any obstacles are removed from

there.

4.3 Location

CAUTION!

Use both lifting eyes when lifting the power source or when lifting with a crane.

S Minimum permitted distance to walls or other cold air obstructions in front of and

behind the power source is 1 m.

S Place the power source so that the top and side panels can b e removed for

maintenance, cleaning and inspection.

S Place the power source relatively close to a fused mains socket.

S Keep the surface under the power source clean, so that the cold air does not

bring any contaminants in with it.

S The area around the equipment must be as free of dust and vapour as possible

and also be as cool as possible. These factors affect the cooling capacity.

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4.4 Mains supply

The power source is 3-phase driven. Th e mains power is taken from a socket with a

switch, anti-surges or MCBs, in accordance with local regulations.

4.4.1 Recommended fuse sizes and minimum cable area

EPP-601 50 Hz

Mains voltage 380 V 400 V

Mains cable area mm

4 G 105*) 4 G 105*)

Phase current I

1eff

206 A 217 A

Fuse, anti-surge 250 A 250 A

*) Supplied by the customer.

NOTE! The mains cable areas and fuse sizes as shown above are in accordance with Swedish

regulations. Use the power source in accordance with the relevant national regulations.

4.4.2 Connecting the incoming mains cable

1. Remove the left-hand side panel

2. Insert the mains cable through the opening (1) in the rear panel

3. Secure the cable with the strain relief at the opening

4. Connect the protective earth to the main earth terminal.

5. Connect the phase conductors to the phase terminals

1 Opening for mains cable in the rear panel 2 Main earth

terminal

3 Phase terminals

4.5 Supply and return cables (supplied by the customer)

Supply and return cables for plasma cutting must have a copper conductor with

cross section of 105 mm

per 400 A and be rated for at least 600 V.

4.5.1 Connecting supply and return cables, power source in single operation

1. Remove the safety plate from the front of the power source.

2. Insert the output cables through the openings at the bottom of the front panel or

at the bottom of the power source immediately behind the front panel.

(+)

(--)

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3. Connect the cables to the output terminals in the power source.

4. Reinstall the safety plate on the front of the power source.

Safety plate removed

EPP-601

Current source

Return cable Electrode

Pilot arc

* 2 parallel connected conductors with

cable area of 105 mm

recommended

for 600 A at intermittence factor of

100 %.

* 2 pcs 600 V positive

conductor 105 mm

to the

workpiece

* 2 pcs 600 V negative

conductor 105 mm

the arc start box (high

frequency generator

1 pcs 600 V conductor

2.5 mm

to the pilot arc

the connection in the arc start

box (high frequency generator)

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4.6 Parallel installation

Two power sources can be connected in parallel to allow higher current.

CAUTION!

When cutting below 100 A only use one power source. We recommend removing the

negative conductor from the auxiliary power source prior to work with current less than 100

A. The disconnected conductor must be isolated safely to prevent the risk of electric shock.

4.6.1 Parallel connection of two power sources

CAUTION!

The main power source has the electrode conductor (negative conductor) jumpered. The

main power source has the return conductor (positive conductor) jumpered.

1. Connect outgoing negative cables to the arc start box (high frequency

generator).

2. Connect the outgoing positive cables to the workpiece.

3. Connect positive and negative cables between the power sources.

4. Connect the pilot arc cable to the pilot arc terminal in the power source. The

auxiliary power sour ce pilot arc connection is not used. The pilot arc cir cuit is not

connected in parallel.

5. Set the pilot arc switch (marked HIGH/LOW) on the auxiliary power source to

LOW.

6. Set the pilot arc switch (marked HIGH/LOW) on the main power source to HIGH.

7. If the output current is remotely controlled by direct current reference signal

0.00–10.00 V, the same reference signal must be connected to both power

sources. Connect both power sources' J1-G (direct current positive 0.00 to 10.00

V) and connect both power sources' J1-P (negative). When both power sources

are in operation, the output current can be calculated according to the following

formula: (output current) = (reference voltage) x 160 in the high current area.

The power source does not have a mains voltage switch. T hen mains voltage is

switched off using the switch at the power socket.

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Parallel connection of two power sources when both power sources are used.

EPP-601 EPP-601

Auxiliary power source Main power source

Return cable Electrode Return cable Electrode

(+) (-) (+) Pilot arc (-)

Jumper cables 105 mm

600 V between the units

1 pcs 600 V conductor

2.5 mm

to the pilot arc

connection in the arc

start box (high

frequency generator)

3 pcs negative cables

600 V 105 mm

in arc start box

(high frequency

generator)

3 pcs positive

cables

600 V 105 mm

the workpiece

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Parallel connection of two power sources when only one power source is

used.

Connection according to the circuit diagram below can be used when only one power

source is used, up to 600 A at intermittence factor 100 %.

EPP-601 EPP-601

Auxiliary power source Main power source

Return cable Electrode Return cable Electrode

(+) (-) (+) (-)

To reset from parallel operation to single

operation, disconnect the negative cables

from the auxiliary power source and

isolate the cable ends.

3 pcs positive cables

600 V 105 mm

to the workpiece

3 pcs negative cables

600 V 105 mm

in the arc start

box (high frequency generator)

4.6.2 Marking with two parallel connected power sources

Two parallel connected power sources can be used for marking down to 20 A and

for cutting from 100 A to 1000 A. After two modifications of the auxiliary power

source, marking can be carried out down to 10 A. The modifications only need to be

made if marking is to be carried out with a current lower than 20 A.

Modifications for marking with down to 10 A

1. Modifications of the main power source: none.

2. Modifications of the auxiliary power source:

a. pull out the white conductor from K12's coil

b. remove the jumper between terminal 7 and 8 on terminal card 7 (the jumper

is integrated in the terminal row).

NOTE!

These modifications only disable the auxiliary power source's power output in

marking mode. They do not affect the function of the auxiliary power source's

power output when cutting, neither in the low nor high power mode.

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Operation with two parallel connected power sources

1. Signal supply main and auxiliary power sour ce with signals for switching on and

off contactors, marking/cutting and current range high/low. Same Vref-signal

must supply both power sources.

2. When marking with parallel connected power sources when the auxiliary power

source is not modified, the power control's transfer function is equal to the sum

of each power source transfer function: Iout = 20 x Vref. Each power sour ce will

be supplied with the same amount of power.

When marking with parallel connected power sources when the auxiliary power

source is not modified, the power control's transfer function is equal to the main

power source's control transfer function: Iout = 10 x Vref. Both power sources

switch on when ther e is a contactor signal, but the auxiliary power source's

power output is off when working in marking mode.

3. When cutting in the low current range, current control's transfer function is equal

to the sum of both power sources' current regulation's transfer function: Iout = 20

x Vref. For current currents less than 100 A, disconnect the negative cable(s)

from the auxiliary power source and isolate the cable ends to prevent the risk of

electric shock. When the auxiliary power sour ce is disconnected, the curr ent

regulation's transfer function is equal to the m ain power source's current

regulation transfer function: Iout = 10 x Vref.

4. When cutting in the high current range, current control's transfer function is equal

to the sum of both power sources' current regulation's transfer function: Iout =

160 x Vref. F or current currents less than 100 A, disconnect the negative

cable(s) from the auxiliary power source and isolate the cable ends to pr event

the risk of electric shock. Use the low current operating mode.

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5OPERATION

General safety regulations for handling of the equipment can be found on

page 4. Read through before you start using the equipment!

5.1 Connections and control devices

1 Connection for cooling unit 9 Controls for current settings

2 Switch for actual and setpoint value display 10 Switch for control panel or remote control

unit

3 Ammeter 11 White indicating lamp, mains power supply

4 Voltmeter 12 White indicating lamp, contactor on

5 Emergency stop 13 Orange indicating lamp - Overheating

6 Connection emergency stop 14 Red indicating lamp, fault

7 Switch for high or low pilot arc current 15 Red indicating lamp, restart error

8 Connection for remote control unit, CNC unit

5.1.1 Key to symbols

Emergency stop (5) Pilot arc current (7)

Remote control unit (8) Current (9)

Mains voltage (11) Contactor on (12)

Over heating (13) Fault indication (14, 15)

5.1.2 Control panel

Mains voltage indicator (11)

Lights when the m ains voltage is connected to the power source.

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Contactor on (12)

Lights when the mains voltage contactor is on

Overheating protection ( 13)

Lights when the power source has overheated.

Fault indication (14)

Lights when the cutting process does not work normally or when incoming mains

voltage deviates more than ±10 % from the nominal value.

Fault indication that requires restart (15)

Lights in the event of serious fault. Incoming mains voltage must be switched off and

stay off for at least 5 seconds before switching back on.

Current control potentiometer (9)

The power source can be set from 10 to 100 A in the low current range and from 50

to 600 A in the high current range. Only used in “PANEL” mode.

Switch co n t rol pan el / remote operation (10)

This switch is used to select where the current is controlled from.

S With the switch in the local control mode, PANEL mode, use the potentiometer

on the control panel.

S With the switch in the remote control mode, REMOTE mode, the current is

controlled by e xternal signal (CNC).

Switch HIGH/LOW for the p ilo t arc (7)

Used for setting desired pilot arc current. LOW mode usually works best for cutting

currents up to 100 A, but this can vary depending on the type of gas and torch type

used and the material. How to set high/low is given in the cutting data included in the

user instructions for the burner. When the power source is set for marking, this

switch must be set to LOW.

Emergency stop connection (6)

The emergency stop connection gives access to the emergency stop's breaking

contact. The contact is connected to J4- A and J4-B and breaks when the emergency

stop button is pressed. This gives a signal to the plasma cutting equipment stating

that the power source is in emergency stop mode.

Emergency stop button (5)

The emergency stop button affects the emergency stop switch. When the button is

pressed, emergency stop status is active. T he power source cannot provide any

power, even if a start signal is given.

Display window (3, 4)

Voltage and current are shown in these display windows during cutting and marking.

The ammeter can be switched from displaying the actual value of the set setpoint

value before cutting starts, to give a n indication of how high the cutting cu rrent will

be.

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Switch actual valu e/setp o in t value display (2)

Switch for switching between display of cutting current's actual value, ACTUAL

AMPS, and setpoint value, PRESET AMPS. The switch spring returns upwards, to

ACTUAL AMPS mode. In ACTUAL AMPS mode, the cutting current's actual value is

shown in the ammeter' s display window.

in PRESET AMPS mode (down) an approximate value for the cutting current' s

setpoint value is shown. The value is obtained by measuring the voltage reference

signal Vref 0 to 10 VDC. The reference signal is obtained from the current

potentiometer when the control switch PANEL/REMOTE is in the local operating

mode PANEL (up) and from a remote reference (J1-J / J1-L(+)) when the control

switch is in control switch mode, REMOTE (down). In both high and low current

modes the displayed setpoint value is an approximate value for the actual value that

the current receives.

The switch can be set between ACTUAL AMPS and PRESET AMPS at any time

without affecting the cutting process.

5.1.3 Operate modes: cu ttin g with h ig h respectively low current an d marking

mode

1. The power source has two cutting modes: high current and low current. In low

current mode, the cutting currents from 35 to 100 A can be used, corresponding

voltage reference Vref 3.50 to 10,00 V. In high current mode, the cutting current

can be regulated steplessly from 50 to 600 A using the current potentiometer on

the control panel or with a remote reference signal connected to J1. EPP-601

has low current mode as standard setting. If the high current mode is used, 115

VAC must supply J1-T by connecting an isolated contact between J1-T and

J1-R.

When the remote signal is used, 50 A reference signal voltage corresponds to

0.625 VDC and 600 A corresponds to 7.50 VDC. If the remote reference voltage

exceeds 7.50 VDC, internal limiting circuits in the power source limit the cutting

current to a maximum of 680 A.

EPP-601 has cutting as standard setting. To switch to marking m ode, the control

signal for this must be supplied from a remote control unit.

2. The switch is set to marking mode with the external, isolated relay or external,

isolated switch that connects J1-R (115 VAC) with J1-M. The electrical circuit

diagram is in the inside of the rear panel. Contact closure for marking mode must

occur at least 50 ms before start command (signal for contact on) is given.

In marking mode, the outgoing current can be regulated steplessly from 10 to

100 A using the current potentiometer on the control panel or with a remote

reference signal connected to J1. In marking mode, EPP-601 automatically

switches to low current mode.

During remote operation in low current mode, 10 A reference signal voltage

corresponds to 1.00 VDC and 100 A corresponds to 10.00 VDC. During remote

operation in high current mode, 50 A reference signal voltage (Vref) corresponds

to 0.625 VDC and 600 A corresponds to 7.50 VDC. If the remote reference

voltage exceeds 7.50 VDC, internal limiting circuits in the power source limit the

cutting current to a maximum of 680 A.

In marking mode, the auxiliary circuit is used for arc lighting in cutting mode off.

Resulting idle voltage is about 360 V at nominal incoming mains voltage*. K12

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then closes and connects R60 to R67 in the output circuit. These resistors

stabilise the current when marking with low current. The power source can be

run with intermittence factor 100% in marking m ode in the entire current range

10 to 100 A.

10 A output current is obtained using resistors R60 to R67. Default set lowest

starting current (set using switch set SW2) is 5 A. Standard setting for switch set

2 (SW2) on the control card behind the access door up to the right in the front

panel is that switches 5, 6, 7 and 8 are off (down).

* Approx. 345 V in the version for 380/400 V during operation with 380 V mains

voltage.

5.2 Starting cutting or marking

1. Power the equipment by switching on the switch at the power

socket (the power source does not have its own mains power

switch). The m ains power lamp comes on and the fault

indication lamp flashes and then goes out.

2. Pull out the emergency stop button.

3. Select operation from the control panel or remote operation.

4. Set the pilot switch to the desired mode (HIGH or LOW). If

HIGH or LOW mode for the pilot arc is to be operated remotely,

the switch on the panel must be in LOW mode, see cutting data

in the torch user manual.

5. During local operation from the panel you can display the

current's setpoint value using the display switch ACTUAL

AMPS/PRESET AMPS. Adjust the setpoint current until the

desired value is displayed in the ammeter display window.

During remote operation, the display switch must be in

PRESET AMPS mode to display the setpoint current the

remote operation system has initially been set to.

6. Start plasma cutting. This can consist of manually setting other

options, depending on the equipment's configuration and

scope.

7. During local operation from the control panel, adjust the current

to the desired value since cutting started.

8. If cutting or marking operation does not start, check the fault

indication lamps. If any fault indication lamp comes on, see the

fault tracing chapter.

NOTE!

The fault indication lamp flashes when the contactor is first

switched on, to indicate that the d irect current bus is powered

normally.

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6 MAINTENANCE

WARNING!

ELECTRIC SHOCKS CAN KILL

Switch off the switch at the power socket before starting maintenance work.

WARNING!

Risk of eye injuries when blow cleaning with compressed air.

Use approved eye protection with side guards when cleaning the power

source.

Only use low pressure air.

WARNING!

ELECTRIC SHOCKS CAN KILL

Always reinstall all covers that were removed when cleaning, before switching the

power back on.

CAUTION

All guarantee undertakings from the supplier cease to apply if the customer attempts any

work in the product during the guarantee period in order to rectify any faults.

CAUTION!

If the cold air flow is blocked for any reason, the power source can overheat.

The thermo switches can then deploy and prevent continued operation.

Do not use air filters on this power source.

Keep ventilation openings and air ducts clear of dust and obstructions.

Regular maintenance is important for safe, reliable operation.

Only those persons who have appropriate electrical knowledge (authorized

personnel) may remove the safety plates.

6.1 Inspection and cleaning

The following points on the power source should be checked and/or cleaned

regularly.

1. Connect the return cable connection to the workpiece.

2. Check that the protective earth from the work piece is securely connected to the

power source chassis earth.

3. Check the torch heat shield. Replace it if it is damaged.

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4. Check the electrode and the nozzle for wear daily. Remove any splash, replace

the electrode and nozzle as necessary.

5. Check that the cables or hoses are not damaged or bent.

6. Check that all plugs and connections and ground terminal are firmly connected.

7. Using dry, clean, low pressure compressed air, blow clean any dust from all air

ducts from all components, especially from cooling fins in the front part of the

power source. Dust is a heat insulator and reduces the cooling capacity. Use eye

protection.

8. Ensure that all incoming power supplies are disconnected. Use goggles and face

mask and blow clean the power source internally using dry compressed air at

low pressure .

6.2 Lubrication

S The fans in some power sources are equipped with oil hoses. These fans must

be lubricated with oil annually.

S All other EPP-601 power sources have permanently lubricated fan motors that

do not require regular maintenance.

7 FAULT-TRACING

WARNING!

ELECTRIC SHOCKS CAN KILL

Never allow persons other than those with the applicable knowledge to check or

repair the equipment. Electrical work must always be carried out by authorised

electricians.

CAUTION!

Stop all work immediately if the power source does not work correctly.

Only allow qualified people to fault trace the equipment.

Only use recommended spare parts.

Try these recommended checks and inspections before sending for an authorized

service technician.

Type of fault Corrective action

No arc. S Check that the mains power supply switch is

turned on.

S Check that the return cables are correctly

connected.

S Check that the correct current value is set.

The current is interrupted during cutting. S Check whether the thermal overload trips

have operated (indicated by the lamp on the

front panel).

S Check the mains power supply fuses.

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ESAB EPP-601 User manual

Brand: ESAB

Model: EPP-601

Category: Welding System

Type: User manual

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ESAB EPP-601 User manual

ESAB EPP-601 User manual

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