ESAB EPP-201 Plasma Power Source User manual
- 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.
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
2
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!
3
TABLE OF CONTENTS
Section / Title Page
1.0 Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.0 Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2.2 General Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .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
4
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
5
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 qualied 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!
GB
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!
GB
CAUTION
6
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 inammable materials nearby.
NOISE - Excessive noise can damage hearing.
- Protect your ears. Use earmus 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
7
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 Specications
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.
8
SECTION 2 DESCRIPTION
2.3 Dimensions and Weight
40.75”
(1035 mm)
47.25”
(1200 mm)
23.75”
(603.25 mm)
Weight = 1085 lb
9
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 aect cool-
ing eciency.
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
10
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/
mm
2
(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, inuence 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.
11
• 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
12
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
13
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
14
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
15
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 EPP201 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
work
electrode
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
16
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
17
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
18
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
19
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 ~
Rectier
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
20
SECTION 4 OPERATION
4.2 Control Panel
B
C
D
F
E
A
J
H
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ESAB EPP-201 Plasma Power Source User manual
- 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.
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