ESAB Precision Etch-Arc® Plasma Marking System User manual

0558004910 02 / 2009

Instruction Manual

Precision Etch-Arc®

Plasma Marking System

2

These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the principles of opera-

tion and safe practices for arc welding and cutting equipment, we urge you to read our booklet, "Precautions

and Safe Practices for Arc Welding, Cutting, and Gouging," Form 52-529. Do NOT permit untrained persons to

install, operate, or maintain this equipment. Do NOT attempt to install or operate this equipment until you

have read and fully understand these instructions. If you do not fully understand these instructions, contact

your supplier for further information. Be sure to read the Safety Precautions before installing or operating

this equipment.

BE SURE THIS INFORMATION REACHES THE OPERATOR.

YOU CAN GET EXTRA COPIES THROUGH YOUR SUPPLIER.

USER RESPONSIBILITY

This equipment will perform in conformity with the description thereof contained in this manual and

accompanying labels and/or inserts when installed, operated, maintained and repaired in accordance

with the instructions provided. This equipment must be checked periodically. Malfunctioning or

poorly maintained equipment should not be used. Parts that are broken, missing, worn, distorted or

contaminated should be replaced immediately. Should such repair or replacement become necessary,

the manufacturer recommends that a telephone or written request for service advice be made to the

Authorized Distributor from whom it was purchased.

This equipment or any of its parts should not be altered without the prior written approval of the

manufacturer. The user of this equipment shall have the sole responsibility for any malfunction which

results from improper use, faulty maintenance, damage, improper repair or alteration by anyone other

than the manufacturer or a service facility designated by the manufacturer.

3

TABLE OF CONTENTS

SECTION TITLE................................................................................................................................................ PAGE

SECTION 1 SAFETY PRECAUTIONS .........................................................................................................................................................5

1.0 Safety Precautions .....................................................................................................................................................................5

1.1 Safety - English ...........................................................................................................................................................................5

1.2 La seguridad - español.............................................................................................................................................................9

1.3 La sûreté - français ..................................................................................................................................................................13

SECTION 2 DESCRIPTION .........................................................................................................................................................................17

2.1 Introduction .............................................................................................................................................................................17

2.2 System Description ................................................................................................................................................................19

SECTION 3 INSTALLATION .......................................................................................................................................................................23

3.1 Interface ..................................................................................................................................................................................... 23

3.2 Requirements ........................................................................................................................................................................... 24

3.3 Connections to the Precision Etch-Arc ........................................................................................................................... 25

3.4 PT-24 Installation ....................................................................................................................................................................29

SECTION 4 OPERATION .............................................................................................................................................................................31

4.1 Precision Etch-Arc Setup ......................................................................................................................................................31

4.2 Gas Setup ..................................................................................................................................................................................32

4.3 CNC Setup .................................................................................................................................................................................33

4.4 Process Data ............................................................................................................................................................................. 33

SECTION 5 MAINTENANCE ......................................................................................................................................................................37

5.1 Routine Maintenance ............................................................................................................................................................37

5.2 Flow Switch ...............................................................................................................................................................................38

SECTION 6 TROUBLESHOOTING ...........................................................................................................................................................39

6.1 Troubleshooting Guide ........................................................................................................................................................39

SECTION 7 REPLACEMENT PARTS ........................................................................................................................................................ 45

7.1 General .......................................................................................................................................................................................45

7.2 Ordering .....................................................................................................................................................................................45

7.3 Precision Etch-Arc -- Front and Rear View all models ............................................................................................... 46

7.4 Precision Etch-Arc Inside Right View –208/230v P/N 0588000967 .......................................................................47

7.5 Precision Etch-Arc Inside Left View –208/230v- P/N 0588000967 ....................................................................... 48

7.6 Precision Etch-Arc Inside Top View (cover removed) –208/230v -- P/N 0588000967 ....................................50

7.7 Precision Etch-Arc Inside Top View Cross Section 1 –208/230v -- P/N 0588000967 ......................................51

7.8 Precision Etch-Arc Inside Top View Cross Section 2–208/230v -- P/N 0588000967 ........................................ 52

7.9 Precision Etch-Arc Inside Right View – 460v P/N 0588000949 & 575v P/N 0588000966 ............................. 53

7.10 Precision Etch-Arc Inside Left View –460v P/N 0588000949 & 575v P/N 0588000966 .................................54

7.11 Precision Etch-Arc Inside Top View – 460v P/N 0588000949 & 575v P/N 0588000966 ................................. 56

7.12 Precision Etch-Arc Inside Top View Cross 1 – 460v P/N 0588000949 & 575v P/N 0588000966 .................. 57

7.13 Precision Etch-Arc Inside Top View Cross 2 – 460v P/N 0588000949 & 575v P/N 0588000966 ................. 58

7.14 Argon Gas Circuit (cut gas) .................................................................................................................................................. 59

7.15 Auxiliary Solenoid Parts .......................................................................................................................................................60

7.16 PT-24 Marking Torch ..............................................................................................................................................................61

7.17 Torch Bundles and Other System Parts ..........................................................................................................................63

4

TABLE OF CONTENTS

5

SECTION 1 SAFETY PRECAUTIONS

1.0 Safety Precautions

1.1 Safety - English

WARNING: These Safety Precautions are

for your protection. They summarize pre-

cautionary information from the references

listed in Additional Safety Information sec-

tion. Before performing any installation or operating

procedures, be sure to read and follow the safety

precautions listed below as well as all other manuals,

material safety data sheets, labels, etc. Failure to observe

Safety Precautions can result in injury or death.

PROTECT YOURSELF AND OTHERS --

Some welding, cutting, and gouging

processes are noisy and require ear

protection. The arc, like the sun, emits

ultraviolet (UV) and other radiation

and can injure skin and eyes. Hot metal can cause

burns. Training in the proper use of the processes

and equipment is essential to prevent accidents.

Therefore:

1. Always wear safety glasses with side shields in any

work area, even if welding helmets, face shields, and

goggles are also required.

2. Use a face shield tted with the correct lter and

cover plates to protect your eyes, face, neck, and

ears from sparks and rays of the arc when operat-

ing or observing operations. Warn bystanders not

to watch the arc and not to expose themselves to

the rays of the electric-arc or hot metal.

3. Wear ameproof gauntlet type gloves, heavy long-

sleeve shirt, cuess trousers, high-topped shoes,

and a welding helmet or cap for hair protection, to

protect against arc rays and hot sparks or hot metal.

A ameproof apron may also be desirable as protec-

tion against radiated heat and sparks.

4. Hot sparks or metal can lodge in rolled up sleeves,

trouser cus, or pockets. Sleeves and collars should

be kept buttoned, and open pockets eliminated from

the front of clothing.

5. Protect other personnel from arc rays and hot

sparks with a suitable non-ammable partition or

curtains.

6. Use goggles over safety glasses when chipping slag

or grinding. Chipped slag may be hot and can y far.

Bystanders should also wear goggles over safety

glasses.

FIRES AND EXPLOSIONS -- Heat from

ames and arcs can start res. Hot

slag or sparks can also cause res and

explosions. Therefore:

1. Remove all combustible materials well away from

the work area or cover the materials with a protec-

tive non-ammable covering. Combustible materials

include wood, cloth, sawdust, liquid and gas fuels,

solvents, paints and coatings, paper, etc.

2. Hot sparks or hot metal can fall through cracks or

crevices in oors or wall openings and cause a hid-

den smoldering re or res on the oor below. Make

certain that such openings are protected from hot

sparks and metal.“

3. Do not weld, cut or perform other hot work until the

workpiece has been completely cleaned so that there

are no substances on the workpiece which might

produce ammable or toxic vapors. Do not do hot

work on closed containers. They may explode.

4. Have re extinguishing equipment handy for instant

use, such as a garden hose, water pail, sand bucket,

or portable re extinguisher. Be sure you are trained

in its use.

5. Do not use equipment beyond its ratings. For ex-

ample, overloaded welding cable can overheat and

create a re hazard.

6. After completing operations, inspect the work area

to make certain there are no hot sparks or hot metal

which could cause a later re. Use re watchers when

necessary.

7. For additional information, refer to NFPA Standard

51B, "Fire Prevention in Use of Cutting and Welding

Processes", available from the National Fire Protec-

tion Association, Batterymarch Park, Quincy, MA

02269.

ELECTRICAL SHOCK -- Contact with

live electrical parts and ground can

cause severe injury or death. DO NOT

use AC welding current in damp areas,

if movement is conned, or if there is

danger of falling.

6

SECTION 1 SAFETY PRECAUTIONS

1. Be sure the power source frame (chassis) is con-

nected to the ground system of the input power.

2. Connect the workpiece to a good electrical

ground.

3. Connect the work cable to the workpiece. A poor

or missing connection can expose you or others

to a fatal shock.

4. Use well-maintained equipment. Replace worn or

damaged cables.

5. Keep everything dry, including clothing, work

area, cables, torch/electrode holder, and power

source.

6. Make sure that all parts of your body are insulated

from work and from ground.

7. Do not stand directly on metal or the earth while

working in tight quarters or a damp area; stand

on dry boards or an insulating platform and wear

rubber-soled shoes.

8. Put on dry, hole-free gloves before turning on the

power.

9. Turn o the power before removing your gloves.

10. Refer to ANSI/ASC Standard Z49.1 (listed on

next page) for specic grounding recommenda-

tions. Do not mistake the work lead for a ground

cable.

ELECTRIC AND MAGNETIC FIELDS

— May be dangerous. Electric cur-

rent owing through any conduc-

tor causes localized Electric and

Magnetic Fields (EMF). Welding and

cutting current creates EMF around welding cables

and welding machines. Therefore:

1. Welders having pacemakers should consult their

physician before welding. EMF may interfere with

some pacemakers.

2. Exposure to EMF may have other health eects which

are unknown.

3. Welders should use the following procedures to

minimize exposure to EMF:

A. Route the electrode and work cables together.

Secure them with tape when possible.

B. Never coil the torch or work cable around your

body.

C. Do not place your body between the torch and

work cables. Route cables on the same side of

your body.

D. Connect the work cable to the workpiece as close

as possible to the area being welded.

E. Keep welding power source and cables as far

away from your body as possible.

FUMES AND GASES -- Fumes and

gases, can cause discomfort or harm,

particularly in conned spaces. Do

not breathe fumes and gases. Shield-

ing gases can cause asphyxiation.

Therefore:

1. Always provide adequate ventilation in the work area

by natural or mechanical means. Do not weld, cut, or

gouge on materials such as galvanized steel, stain-

less steel, copper, zinc, lead, beryllium, or cadmium

unless positive mechanical ventilation is provided.

Do not breathe fumes from these materials.

2. Do not operate near degreasing and spraying opera-

tions. The heat or arc rays can react with chlorinated

hydrocarbon vapors to form phosgene, a highly

toxic gas, and other irritant gases.

3. If you develop momentary eye, nose, or throat ir-

ritation while operating, this is an indication that

ventilation is not adequate. Stop work and take

necessary steps to improve ventilation in the work

area. Do not continue to operate if physical discom-

fort persists.

4. Refer to ANSI/ASC Standard Z49.1 (see listing below)

for specic ventilation recommendations.

7

SECTION 1 SAFETY PRECAUTIONS

5. WARNING: This product, when used for welding

or cutting, produces fumes or gases

which contain chemicals known to

the State of California to cause birth

defects and, in some cases, cancer.

(California Health & Safety Code

§25249.5 et seq.)

CYLINDER HANDLING -- Cylinders,

if mishandled, can rupture and vio-

lently release gas. Sudden rupture

of cylinder, valve, or relief device can

injure or kill. Therefore:

1. Use the proper gas for the process and use the

proper pressure reducing regulator designed to

operate from the compressed gas cylinder. Do not

use adaptors. Maintain hoses and ttings in good

condition. Follow manufacturer's operating instruc-

tions for mounting regulator to a compressed gas

cylinder.

2. Always secure cylinders in an upright position by

chain or strap to suitable hand trucks, undercar-

riages, benches, walls, post, or racks. Never secure

cylinders to work tables or xtures where they may

become part of an electrical circuit.

3. When not in use, keep cylinder valves closed. Have

valve protection cap in place if regulator is not con-

nected. Secure and move cylinders by using suitable

hand trucks. Avoid rough handling of cylinders.

4. Locate cylinders away from heat, sparks, and ames.

Never strike an arc on a cylinder.

5. For additional information, refer to CGA Standard P-1,

"Precautions for Safe Handling of Compressed Gases

in Cylinders", which is available from Compressed

Gas Association, 1235 Jeerson Davis Highway,

Arlington, VA 22202.

EQUIPMENT MAINTENANCE -- Faulty or

improperly maintained equipment can

cause injury or death. Therefore:

1. Always have qualied personnel perform the instal-

lation, troubleshooting, and maintenance work.

Do not perform any electrical work unless you are

qualied to perform such work.

2. Before performing any maintenance work inside a

power source, disconnect the power source from

the incoming electrical power.

3. Maintain cables, grounding wire, connections, power

cord, and power supply in safe working order. Do

not operate any equipment in faulty condition.

4. Do not abuse any equipment or accessories. Keep

equipment away from heat sources such as furnaces,

wet conditions such as water puddles, oil or grease,

corrosive atmospheres and inclement weather.

5. Keep all safety devices and cabinet covers in position

and in good repair.

6. Use equipment only for its intended purpose. Do

not modify it in any manner.

ADDITIONAL SAFETY INFORMATION -- For

more information on safe practices for

electric arc welding and cutting equip-

ment, ask your supplier for a copy of

"Precautions and Safe Practices for Arc

Welding, Cutting and Gouging", Form

52-529.

The following publications, which are available from

the American Welding Society, 550 N.W. LeJuene Road,

Miami, FL 33126, are recommended to you:

1. ANSI/ASC Z49.1 - "Safety in Welding and Cutting"

2. AWS C5.1 - "Recommended Practices for Plasma Arc

Welding"

3. AWS C5.2 - "Recommended Practices for Plasma Arc

Cutting"

4. AWS C5.3 - "Recommended Practices for Air Carbon

Arc Gouging and Cutting"

8

SECTION 1 SAFETY PRECAUTIONS

5. AWS C5.5 - "Recommended Practices for Gas Tung-

sten Arc Welding“

6. AWS C5.6 - "Recommended Practices for Gas Metal

Arc Welding"“

7. AWS SP - "Safe Practices" - Reprint, Welding Hand-

book.

8. ANSI/AWS F4.1, "Recommended Safe Practices for

Welding and Cutting of Containers That Have Held

Hazardous Substances."

MEANING OF SYMBOLS - As used

throughout this manual: Means Atten-

tion! Be Alert! Your safety is involved.

Means immediate hazards which,

if not avoided, will result in im-

mediate, serious personal injury

or loss of life.

Means potential hazards which

could result in personal injury or

loss of life.

Means hazards which could result

in minor personal injury.

Page is loading ...

17

The Precision Etch-Arc Plasma Marker is a constricted arc low amperage plasma marking system. It marks at

speeds between 100 and 600 ipm. The plasma marking process is similar to the plasma cutting process. However,

rather than piercing through the plate, the low amperage plasma arc merely cuts the surface of the plate material

between .00020" and .0050" deep. Voltage height control maintains a constant torch stando for consistent, high

speed, accurate pattern layout. When the Precision Etch-Arc Plasma Marker is used in conjunction with ESAB’s Vi-

sion CNC, Dynamic Current Control is used to precisely control width and depth of marks by proportionally ramp-

ing current up and down as the machine accelerates and decelerates. This minimizes pitting at the beginning,

corners, and end of the mark. Accurate positioning of the layout lines and marks depends on using the automatic

marker osets executed by the CNC during Automatic Mode. However, the marker can be used manually for test-

ing and setup.

In automatic operation, the part program

controls:

machine motion•

osets torch•

turns on automatic height control•

res the torch and begins marking.•

All of these steps can be performed by the

operator for manual operation.

The Precision Etch-Arc Plasma Marking

Power Supply consists of a modied PCM-

1125 capable of supplying up to 35 amperes.

Modications include an added argon so-

lenoid, pressure switch, gas connections,

marker control board and cable connection.

Unused manual controls were removed or

disconnected from the PCM-1125.

The marking torch has only three consum-

able parts: the electrode, nozzle and shield

cup. Argon cut gas provides long electrode

and nozzle life.

SECTION 2 DESCRIPTION

1

2

5

4

3

2.1 Introduction

Motorized vertical lift

Handle

Torch body

Torch leads

Adaptor

18

Precision Etch-Arc

Front Connections

Precision Etch-Arc

Back Connections

1 Vision CNC (relay box) 9 Air Regulator

2 CNC Control Cable 10 Air Supply Hose

3 Argon Gas Hose to torch 11 Argon Supply Hose

4 Work Cable 12 Primary Power Cable

5 Torch Bundle 13 Argon Gas Supply

6 Marking Torch 14 Compressed Air Supply

7 Work Piece 15 Fused Disconnect (mounted on machine, used when

Precision Etch-Archas been mounted on the machine)

8 Earth Ground

16 Wall disconnect

1

16

2

9

11

10

3

4

5

8

7

13

12

14

15

2.1.1 Interconnection Diagram

SECTION 2 DESCRIPTION

6

19

2.2 System Description

2.2.1 Precision Etch-Arc Systems

Includes power supply, torch and necessary cables and hoses.

Marker Module ..............................................................................................P/N 0560938439

2.2.2 Precision Etch-Arc Power Supply

208/230 V, 50/60Hz, 1 or 3 phase............................................................P/N 0588000967

460 V, 50/60 Hz, 3 phase ............................................................................P/N 0588000949

575 V, 60 Hz, 3 phase ...................................................................................P/N 0588000966

SECTION 2 DESCRIPTION

Rated Inputs Rated Outputs

Phases Volts Amps Power Factor Duty Cycle

Output Amps*

@ 120 VDC

Open Circuit

Voltage

1

208 6455 73% 100% 35* 280 VDC

230 5855 73% 100% 35* 270 VDC

3

230 28 100% 100% 35* 285 VDC

208 25 100% 100% 35* 275 VDC

460 14 100% 100% 35* 285 VDC

575 11 100% 100% 35* 260 VDC

* Output amperage is limited by the marker control board (P/N 38214) to 35 amperes.

20

2.2.3 PT-24 Plasma Marker Torch Body, P/N 21758, Torch Handle, P/N 22568

Gas - Dual (Argon and Air)•

AIr Cooled•

Amperes, Variable -- 35 Amperes Maximum•

2.2.4 PT-24 Torch Lead Assembly

19 ft. (5.8 m)• .............................................................................................................................................................P/N 0560938411

25 ft. (7.6 m)• ............................................................................................................................................................ P/N 0560938412

32 ft. (9.8m)• ............................................................................................................................................................. P/N 0560938413

40 ft. (12.2 m)• ......................................................................................................................................................... P/N 0560938414

50 ft. (15.2 m)• .......................................................................................................................................................... P/N 0560938415

2.2.5 Options

Remote Arc Starter, P/N 0558002819 (Required if torch lead to exceed 50 ft. (15.2 m))

SECTION 2 DESCRIPTION

21

2.2.6 Accessories

The following parts kits are available for maintaining the PT-24 torch with minimum downtime.

PT-24 Plasma Marker Starter / Repair Kit, P/N 0560943843 - Kit includes the following:

SECTION 2 DESCRIPTION

Part No. Qty. Description

21543 5 Nozzle, "D" Size

0558005309 2 Insulated Shield Assembly, One Piece

21692 2 Bae, Swirl 50/70/100 Amp

21539 5 Electrode, Oxygen

22007 2 Nozzle Retainer and Diuser

21765 1 Tool, Nozzle and Electrode PT-24

21725 1 Bae, Water

638797 2 O-Ring, Water Bae

86W62 2 O-Ring, Nozzle Retainer 1.239 ID

950714 2 O-Ring, Insulated Shield Assy 1.489 ID

98W18 2 O-Ring, Electrode 0.364 ID

73585064 1 Dupont Kyrtox, 2 oz. Tube

77500101 1 Grease, Silicon Dow DC-111

0560942655 1 Plasma Marker Alignment Tool

21540 5 Nozzle "A" Size

21541 5 Nozzle "B" Size

21852 5 Bae, Swirl 15A

21536 5 Bae, Swirl 30A

Page is loading ...

23

SECTION 3 INSTALLATION

CAUTION

WARNING

ELECTRIC SHOCK CAN KILL!

ENSURE PRIMARY POWER SOURCE IS OFF AND DISCONNECTED BE

FORE MAKING ANY ELECTRICAL CONNECTIONS. ONLY A QUALIFIED

TECHNICIAN SHOULD INSTALL AND SERVICE THIS EQUIPMENT.

ENSURE YOUR PRECISION ETCHARC IS BEING SUPPLIED WITH THE AP

PROPRIATE POWER. THIS EQUIPMENT COMES IN 208/230 VAC 1PHASE,

208/230 VAC 3PHASE, 460 VAC 3PHASE AND 575 VAC 3PHASE. CON

NECTING TO INCORRECT POWER COULD DAMAGE YOUR MACHINE.

3.1 Interface

The Precision Etch-Arc Marker system interfaces with any cutting machine controller via the standard ESP open in-

terface. This interface provides an amphenol connector for linking the appropriate control wiring. The schematic

below illustrates interfacing with an Precision Etch-Arc and ESAB Vision or ESAB Series 2000 CNC. The customer

must provide the external requirements shown below when interfacing with a control other than these types.

Contact closes

when arc starts

J2-J

ESP Interface

External

Requirements

ESP Interface

Plug (J2)

Precision Etch-Arc

Power Supply

Start signal (Close

contacts to start

arc)

Arc ON signal to

CNC

Current control

signal (Variable

DC Voltage)

Vmax = 3.5 V

Vmin = 0.3 V

Voltage divider

signal to voltage

height control

Start signal to

power supply

Electrode

20:1

Work

3.5 V = 35 A

0.3 V = 3.0 A

J2-N

J2-M

J2-I

J2-G

J2-C

J2-L

J2-H

24

Rated Input Input & Gnd Fuse Size

Conductor

Volts Amps Phase CU/AWG Amps

208 64 1 No. 4 90

230 58 1 No. 4 90

208 28 3 No. 10 50

230 25 3 No. 10 40

400 16 3 No. 10 25

575 11 3 No. 10 20

SECTION 3 INSTALLATION

3.2 Requirements

Electrical Input Requirements:

Rated primary input @ 35A / 120V output: 208/230VAC, 1 Phase 64/58A, 50/60 Hz.

208/230/400/575 VAC, 3 Phase

28/25/16/11A, 50/60 Hz.

A fused breaker (either on the cutting machine gantry or wall mounted) is required to disconnect power to the

Precision Etch-Arc power supply. A machine mounted disconnect should be used when the power supply is

mounted on the cutting machine.

Recommended sizes for input conductors and line fuses:

Gas Supply Requirements:

Argon - 100 psi (1/4" NPT) 99.999% Pure

Service Air - 100 psi (1/4" NPT) Clean, dry, oil-free

25

There are 3 input lines to connect to the power supply.

These are made to the back of the unit.

Shield Gas •

Plasma Gas •

Primary power•

Shield Gas - Preltered (clean and dry) Air, customer sup-

plied, 90 to 150 PSI max. 1/4" NPT

Plasma Gas - 99.999% purity, 100 PSI, 1/4" NPT

Primary Power - 208/230 VAC unit is supplied with a 3-

prong plug on a 10 ft. power cable when used as a single

phase Precision Etch-Arc power supply. If used as a 3-phase

unit, disassemble plug and discard. Un-tape red lead and

connect. The Precision Etch-Arc 460 and 575 VAC power

supplies are 3-phase and must be hard wired into the wall

disconnect box.

Primary Power

3-prong plug used on the single phase

208/230 VAC Precision Etch-Arc

Red lead terminated and not

used on the 1-phase Precision

Etch-Arc

Inside the 3 prong plug

Plasma Gas

(Argon)

Shield Gas (Air)

Regulator/Filter

Solenoid

Tee

SECTION 3 INSTALLATION

3.3 Connections to the Precision Etch-Arc

3.3.1 Rear Panel

26

Remove cover from the Precision Etch-Arc Power 1.

Supply.

Locate output bridge (D2) and TB3 on left side to-2.

wards the front panel.

Disconnect X2 and X3 leads from these two locations 3.

and interchange wire connections.

Move X2 from D2-3 to TB3.4.

Move X3 lead that was on TB3 to D2-3.5.

Locate the input bridge (IBR) and TB5 terminal block 6.

on the left side towards the rear panel.

Disconnect gray lead from TB5-2 and reconnect to 7.

TB5-1.

D2 D1

TB5-2 to TB5-1

TB3

TB5-2

TB5-1

Gray Lead

SECTION 3 INSTALLATION

3.3.2 Converting a 230 VAC power supply to 208 VAC

The Precision Etch-Arc is factory wired for 1-phase 230 volts AC. If using 208 VAC, the Precision Etch-Arc must be

reconnected as follows before connecting to your input primary power.

27

The torch lead bundle consists of;

one hose for the plasma gas, one cable for the pilot arc current,

and one combination gas hose and cable for the shield gas/plasma

current. (The current conductor is inside the air conduit gas hose).

The torch lead to torch connections are covered in section 3.4.

Torch Lead Connections

Coolant in (Air)

Argon Hose (Cut Gas)

Torch Lead Connection Access Panel

Pilot Arc Cable

Shield Gas

SECTION 3 INSTALLATION

3.3.3 Torch Lead Connections, Front Panel

Front End Connections

Remove the torch lead connection access 1.

panel to connect coolant and pilot arc ca-

ble.

Torch Lead Bundle

28

Pilot Arc Connection

Plasma Gas Connection (Argon)

Coolant Gas

Shield Gas

SECTION 3 INSTALLATION

Connect pilot arc cable and shield gas hose. (The 2.

plasma arc connection is made when the coolant

hose is threaded into the bulkhead tting.)

Connect plasma gas hose to the bulkhead. Re-3.

place access panel.

Connect shield gas to the solenoid.4.

29

3.4 PT-24 Installation

Pilot Arc lead, connect to

Shield Gas hookup.

Shield Gas In (Air)

Coolant Out

Start Gas (not used)

Cut Gas In (Argon Line)

SECTION 3 INSTALLATION

Coolant Crossover Tube

Coolant In

Start Gas

Cut Gas

Coolant Out

Shield Gas

Note:

All itings have dierent threads to ensure correct connection on the torch end of the lead

Page is loading ...

ESAB Precision Etch-Arc® Plasma Marking System User manual

ESAB Precision Etch-Arc® Plasma Marking System User manual

in other languages

Related papers

Other documents