ESAB EPP-201 Plasma Power Source User manual

Brand: ESAB

Model: EPP-201 Plasma Power Source

Category: Welding System

Type: User manual

ESAB EPP-201 Plasma Power Source is a reliable and versatile cutting solution with advanced features for precise and efficient operation. Its compact design and user-friendly interface make it suitable for a wide range of applications, including fabrication, construction, automotive, and shipbuilding. With its precise cutting capabilities, the EPP-201 ensures clean and accurate cuts on various materials, including mild steel, stainless steel, aluminum, and copper.

EPP-201

Plasma Power Source

Instruction Manual (EN)

0558007904 09/2011

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

nying labels and/or inserts when installed, operated, maintained and repaired in accordance with the instruc-

tions 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 imme-

diately. 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 ser-

vice facility designated by the manufacturer.

BE SURE THIS INFORMATION REACHES THE OPERATOR.

YOU CAN GET EXTRA COPIES THROUGH YOUR SUPPLIER.

These INSTRUCTIONS are for experienced operators. If you are not fully familiar with the

principles of operation 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 be-

fore installing or operating this equipment.

CAUTION

USER RESPONSIBILITY

READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.

PROTECT YOURSELF AND OTHERS!

TABLE OF CONTENTS

Section / Title Page

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

2.0 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.2 General Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

2.3 Dimensions and Weight. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

3.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.2 Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.3 Placement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

3.4 Input Power Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

3.5 Output Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

3.6 Parallel Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

3.7 Interface Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

4.0 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4.1 EPP-201 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

4.2 Control Panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3 Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

4.4 Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.0 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

6.0 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.0 Replacement Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

DECLARATION OF CONFORMITY

according to the Low Voltage Directive 2006/95/EC, according to the EMC Directive 2004/108/EC

FÖRSÄKRAN OM ÖVERENSSTÄMMELSE

enligt Lågspänningsdirektivet 2006/95/EG, enligt EMC-Direktivet 2004/108/EG

Type of equipment Materialslag

Plasma Cutting Console

Brand name or trade mark Fabrikatnamn eller varumärke

ESAB

Type designation etc. Typbeteckning etc.

EPP-201, (0558007800) & EPP-360 (0558007831)

Manufacturer or his authorised representative established within the EEA

Name, address, telephone No, telefax No: Tillverkarens namn, adress, telefon, telefax:

ESAB AB

Esabvägen, SE-695 81 Laxå, Sweden

Phone: +46 586 81000, Fax: +46 584 411 924

The following harmonised standard in force within the EEA has been used in the design:

Följande harmoniserande standarder har använts i konstruktionen:

EN 60974-1, Arc welding equipment – Part 1: Welding power sources

EN 60974-10, Arc welding equipment – Part 10: Electromagnetic compatibility (EMC) requirements

Additional information: / Tilläggsinformation: Restrictive use, Class A equipment, intended for use in locations other than

residential

By signing this document, the undersigned declares as manufacturer, or the manufacturer’s authorised

representative established within the EEA, that the equipment in question complies with the safety requirements

stated above.

Genom att underteckna detta dokument försäkrar undertecknad såsom tillverkare, eller tillverkarens representant inom

EES, att angiven materiel uppfyller säkerhetskraven angivna ovan.

Date / Datum

Laxå 2007-12-20

Signature / Underskrift Position / Befattning

Global Director

Equipment and Automation

Kent Eimbrodt

Clarification

SECTION 1 SAFETY PRECAUTIONS

1.0 Safety Precautions

Users of ESAB welding and plasma cutting 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 or plasma cutting 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 or plasma

cutting 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 welding or plasma cutting equipment must be familiar with:

- its operation

- location of emergency stops

- its function

- relevant safety precautions

- welding and / or plasma cutting

2. The operator must ensure that:

- no unauthorized person stationed within the working area of the equipment when it is started up.

- no one is unprotected when the arc is struck.

3. The workplace must:

- be suitable for the purpose

- be free from drafts

4. Personal safety equipment:

- Always wear recommended personal safety equipment, such as safety glasses, ame proof

clothing, safety gloves.

- Do not wear loose tting items, such as scarves, bracelets, rings, etc., which could become

trapped or cause burns.

5. General precautions:

- Make sure the return cable is connected securely.

- Work on high voltage equipment may only be carried out by a qualied electrician.

- Appropriate re extinquishing equipment must be clearly marked and close at hand.

- Lubrication and maintenance must not be carried out on the equipment during operation.

-- 4 --

EMCea

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.

Ask for your employer’s safety practices which should be based on manufacturers’ hazard data.

ELECTRIC SHOCK - Can kill

S Install and earth the welding 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 cause 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!

Read and understand the instruction manual before installing

or operating.

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 electromagnic

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!

Class A (400V CE) equipment is not intended for use in resi-

dential locations where the electrical power is provided by the

public low-voltage supply system. There may be potential dif-

culties in ensuring electromagnetic compatibility of Class A

equipment in those locations due to conducted as well as radi-

ated disturbances.

-- 4 --

EMCea

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.

Ask for your employer’s safety practices which should be based on manufacturers’ hazard data.

ELECTRIC SHOCK - Can kill

S Install and earth the welding 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 cause 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!

Read and understand the instruction manual before installing

or operating.

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 electromagnic

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!

CAUTION

SECTION 1 SAFETY PRECAUTIONS

WELDING AND PLASMA CUTTING CAN BE INJURIOUS TO YOURSELF AND

OTHERS. TAKE PRECAUTIONS WHEN WELDING OR CUTTING. ASK FOR

YOUR EMPLOYER’S SAFETY PRACTICES WHICH SHOULD BE BASED ON

MANUFACTURERS’ HAZARD DATA.

ELECTRIC SHOCK - Can kill.

- Install and earth (ground) the welding or plasma cutting unit in accordance with applicable standards.

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

- Insulate yourself from earth and the workpiece.

- Ensure your working stance is safe.

FUMES AND GASES - Can be dangerous to health.

- Keep your head out of the fumes.

- 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.

- Protect your eyes and body. Use the correct welding / plasma cutting screen and lter lens and wear

protective clothing.

- Protect bystanders with suitable screens or curtains.

FIRE HAZARD

- Sparks (spatter) can cause re. Make sure therefore that there are no inammable materials nearby.

NOISE - Excessive noise can damage hearing.

- Protect your ears. Use earmus or other hearing protection.

- Warn 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!

WARNING

SECTION 2 DESCRIPTION

2.1 Introduction

The EPP power source is designed for marking and high speed plasma mechanized cutting applications. It can

be used with other ESAB products such as the PT-15, PT-19XLS, PT-600 and PT-36 torches along with the Smart

Flow II, a computerized gas regulation and switching system.

• 10 to 36 amperes for marking

• 30 to 200 amperes cutting current range

• Forced air cooled

• Solid state DC power

• Input voltage protection

• Local or remote front panel control

• Thermal switch protection for main transformer and power semiconductor components

• Top lifting eyes or base forklift clearance for transport

• Parallel supplemental power source capabilities to extend current output range.

2.2 General Specications

EPP-201, CCC/CE, 380 / 400V,

50 / 60Hz

Part Number 0558007800

Output

(100 % duty cycle)

Voltage 160 VDC

Current range DC (marking) 10A to 36A

Current range DC (cutting) 30A to 200A

Power 32 KW

* Open Circuit Voltage (OCV) 360 VDC

Input

Voltage (3-phase) 380 / 400V

Current (3- phase) 60 / 57A RMS

Frequency 50 / 60 HZ

KVA 39.5 KVA

Power 35.5 KW

Power Factor 90.0 %

Input Fuse Rec. 100A

400V CE Mains Supply .....................................S

sc min

7.2MVA

..................................................................................... Z

max

0.020Ω

400V CE Mains Supply, S

sc min

Minimum short circuit power on the network in accordance with IEC61000-3-12.

400V CE Mains Supply, Z

max

Maximum permissible impedance of the three-phase input power line in accordance with IEC61000-3-11.

SECTION 2 DESCRIPTION

2.3 Dimensions and Weight

40.75”

(1035 mm)

47.25”

(1200 mm)

23.75”

(603.25 mm)

Weight = 1085 lb

SECTION 3 INSTALLATION

3.1 General

FAILURE TO FOLLOW INSTRUCTIONS COULD LEAD TO DEATH, INJURY

OR DAMAGED PROPERTY. FOLLOW THESE INSTRUCTIONS TO PRE

VENT INJURY OR PROPERTY DAMAGE. YOU MUST COMPLY WITH LO

CAL, STATE AND NATIONAL ELECTRICAL AND SAFETY CODES.

WARNING

3.2 Unpacking

• Inspect for transit damage immediately upon receipt.

• Remove all components from shipping container and check for loose parts in container.

• Inspect louvers for air obstructions.

3.3 Placement

• A minimum of 1 meter (3 ft.) clearance on front and back for cooling air ow.

• Plan for top panel and side panels having to be removed for maintenance, cleaning and inspection.

• Locate the EPP-201 relatively close to a properly fused electrical power supply.

• Keep area beneath power source clear for cooling air ow.

• Environment should be relatively free of dust, fumes and excessive heat. These factors will aect cool-

ing eciency.

Conductive dust and dirt inside power source may cause arc ash-

over. Equipment damage may occur. Electrical shorting may occur if

dust is allowed to build-up inside power source.

See maintenance section.

CAUTION

SECTION 3 INSTALLATION

3.4 Input Power Connection

ELECTRIC SHOCK CAN KILL!

PROVIDE MAXIMUM PROTECTION AGAINST ELECTRICAL SHOCK.

BEFORE ANY CONNECTIONS ARE MADE INSIDE THE MACHINE, OPEN

THE LINE WALL DISCONNECT SWITCH TO TURN POWER OFF.

WARNING

3.4.1 Primary Power

EPP-201 is a 3-phase unit. Input power must be provided from a line (wall) disconnect switch that contains fuses

or circuit breakers in accordance to local or state regulations.

Dedicated power line may be necessary.

EPP-201 is equipped with line voltage compensation but to avoid

impaired performance due to an overloaded circuit, a dedicated

power line may be required.

NOTICE

Input current =

(V arc) x (I arc) x 0.73

(V line)

Recommended input conductor and line fuse sizes:

* Sizes per National Electrical Code for a 90° C (194˚ F) rated copper conductors @ 40° C (104˚ F) ambient. Not

more than three conductors in raceway or cable. Local codes should be followed if they specify sizes other

than those listed above.

To estimate the input current for a wide range of output conditions, use the formula below.

Rated load is output of 200A at 160V

Input at Rated Load Input and Ground

conductor* CU/

(AWG)

Time delay

Fuse size

(amperes)

Volts Amperes

380 60 35 (2/0) 100

400 57 35 (2/0) 100

NOTE !!!

400V CE Mains Supply Requirements:

High power equipment may, due to the primary current drawn from the mains supply, inuence the pow-

er quality of the grid. Therefore connection restrictions or requirements regarding the maximum permis-

sible 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 distribution network operator if

necessary, that the equipment may be connected.

• Customer supplied

• May consist either of heavy rubber covered copper conductors (three power and one ground) or run

in solid or exible conduit.

• Sized according to the chart.

3.4.2 Input Conductors

1. Remove small rear panel of the EPP-201.

2. Thread cables through the access opening in the rear panel.

3. Secure cables with strain relief at the access opening.

4. Connect the ground lead to the stud on the chassis.

5. Connect the power leads to the primary terminals.

6. Connect the input conductors to the line (wall) disconnect.

7. Before applying power, replace the rear cover panel.

3.4.3 Input Connection Procedure

Power Input Cable Access Opening (Rear Panel)

SECTION 3 INSTALLATION

Primary Terminals

Chassis Ground

IMPROPER GROUNDING CAN RESULT IN DEATH OR INJURY.

CHASSIS MUST BE CONNECTED TO AN APPROVED ELECTRICAL

GROUND. BE SURE GROUND LEAD IS NOT CONNECTED TO ANY PRI

MARY TERMINAL.

WARNING

ELECTRIC SHOCK CAN KILL! DANGEROUS VOLTAGE AND CURRENT!

ANY TIME WORKING AROUND A PLASMA POWER SOURCE WITH COV

ERS REMOVED:

• DISCONNECT POWER SOURCE AT THE LINE (WALL) DISCONNECT.

• HAVE A QUALIFIED PERSON CHECK THE OUTPUT BUS BARS (POSI-

TIVE AND NEGATIVE) WITH A VOLTMETER.

3.5 Output Connections

WARNING

3.5.1 Output Cables (customer supplied)

Choose plasma cutting output cables (customer supplied) on the basis of one 4/0 AWG, 600 volt insulated cop-

per cable for each 400 amps of output current.

Note:

Do not use 100 volt insulated welding cable.

SECTION 3 INSTALLATION

3.5.2 Output Connection Procedure

Front Access

Panel Opened

1. Open access panel on the lower front of the power source.

2. Thread output cables through the openings at the bottom of the power source immediately behind the front

panel.

3. Connect cables to designated terminals mounted inside the power source using UL listed pressure wire con-

nectors.

4. Close front access panel.

Front Access

Panel Closed

SECTION 3 INSTALLATION

Note:

Primary power source has the electrode (-) conductor jumpered. The supplemental power

source has the work (+) jumpered.

1. Connect the negative (-) output cables to the arc starter box (high frequency generator).

2. Connect the positive (+) output cables to the workpiece.

3. Connect the positive (+) and negative (-) conductors between the power sources.

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

the supplemental power source is not used. The pilot arc circuit is not run in parallel.

5. Connect a power source paralleling control cable between the two power sources.

6. Connect the CNC control cable to the primary power source.

Connections for parallel installation of two EPP-201 power sources with both power sources in operation.

3.6.1 Connections for Two EPP-201’s in Parallel

S u p p l e m e n t a l

Power Source

Primary Power

Source

work

(+)

electrode

(-)

pilot arc

2 - 4/0 600V

positive leads

to workpiece

1 - 14 AWG 600V

lead to pilot arc con-

nection in arc starter

box (h.f. generator)

2 - 4/0 600V

negative leads

in arc starter box

(h.f. generator)

EPP-201 EPP-201

work

(+)

electrode

(-)

P/S Parallel Control Cable

CNC

Control

Cable

Control cable to

water cooler

Two EPP-201 power sources may be connected together in parallel to extend the output current range.

3.6 Parallel Installation

SECTION 3 INSTALLATION

ELECTRIC SHOCK CAN KILL!

EXPOSED ELECTRICAL CONDUCTORS CAN BE HAZARDOUS!

DO NOT LEAVE ELECTRICALLY “HOT“ CONDUCTORS EXPOSED. WHEN

DISCONNECTING THE SUPPLEMENTAL POWER SOURCE FROM THE

PRIMARY, VERIFY THE CORRECT CABLES WERE DISCONNECTED. IN

SULATE THE DISCONNECTED ENDS.

WHEN TWO POWER SOURCES ARE CONNECTED IN PARALLEL AND

ONE OF THE TWO IS NOT POWERED, OR IF THE PARALLELING CABLE

DOES NOT CONNECT THE TWO, THE NEGATIVE ELECTRODE CONDUC

TOR MUST BE DISCONNECTED FROM THE SUPPLEMENTAL POWER

SOURCE AND THE PLUMBING BOX. FAILURE TO DO THIS WILL LEAVE

THE SUPPLEMENTAL POWER SOURCE ELECTRICALLY “HOT”, UNSAFE,

AS WELL AS INOPERATIVE.

WARNING

DO NOT OPERATE THE EPP 201 WITH COVERS REMOVED. HIGH

VOLTAGE COMPONENTS ARE EXPOSED INCREASING SHOCK HAZ

ARD. INTERNAL COMPONENTS MAY BE DAMAGED BECAUSE COOL

ING FANS WILL LOSE EFFICIENCY.

WARNING

The EPP-201 does not have an ON/OFF switch. The main power is controlled through the line (wall) disconnect switch.

Connections for parallel installation of two EPP-201 power sources with only one power source in operation.

S u p p l e m e n t a l

Power Source

Primary Power

Source

work

electrode

2 - 4/0 600V

positive leads

to workpiece

2 - 4/0 600V

negative leads

in arc starter box

(h.f. generator)

Disconnect negative

connection from sec-

ondary power source

and insulate to con-

vert from two to one

power source

EPP-201 EPP-201

P/S Parallel Control

Cable

Control cable to

water cooler

SECTION 3 INSTALLATION

3.6.2 Marking with Two Parallel EPP-201’s

Two EPP-201’s, connected in parallel, and can be used for marking down to 10A and cutting from 30A up to

400A.

OPERATION OF TWO PARALLEL EPP-201’S:

1. Provide start/stop, Cut/Mark, “HI CURRENT” logic signals and either logic or analog inputs to control the pilot

current signals to primary unit for both cutting and marking. When marking, both power sources are pow-

ered up, but the mark signal disables the output of the supplemental power source.

3.7 Interface Cable Connectors

Remote Control (CNC)

Parallel Power Source

Coolant Circulator

E-Stop Connector

SECTION 3 INSTALLATION

3.7.1 CNC Interface Cables with Mating Power Source Connector and

Unterminated CNC Interface

3.7.2 CNC Interface Cables with Mating Power Source Connectors at Both Ends

GRN/YEL

RED #4

GRN/YEL

RED #4

SECTION 3 INSTALLATION

3.7.3 Water Cooler Interface Cables with Mating Power Source Connectors at Both Ends

3.7.4 Power Source Parallel Control Cable

SECTION 4 OPERATION

4.1 EPP-201 Block Diagram

DANGEROUS VOLTAGES AND CURRENT! ELECTRIC SHOCK CAN KILL!

BEFORE OPERATION, ENSURE INSTALLATION AND GROUNDING PRO

CEDURES HAVE BEEN FOLLOWED. DO NOT OPERATE THIS EQUIP

MENT WITH COVERS REMOVED.

WARNING

380/400V 3 ~

Input

Control

Power

Fuses

1 ~

Control

Transformer

Main

Contactor

Soft

Start

Relay

Relay / Interface

Board

Main

Transformer

3 x 2 Ohm

300 Watt

Resistors

3 ~

Rectier

2 x 6000uf

450V

Capacitors

IGBT Driver

Board

4 x 400 Amp

IGBT’s

Inductor

Output

Main Control

Board

Front Panel

Display

CNC

Interface

Isolation

Power Factor

Correction

Inductor

EMC Filter

SECTION 4 OPERATION

4.2 Control Panel

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ESAB EPP-201 Plasma Power Source User manual

Brand: ESAB

Model: EPP-201 Plasma Power Source

Category: Welding System

Type: User manual

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ESAB EPP-201 Plasma Power Source User manual

ESAB EPP-201 Plasma Power Source User manual

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