Strata ADVANCECUT 75 User manual

OPERATING INSTRUCTIONS
www.strata.co.nz
ADVANCECUT 75
PLASMA CUTTER
IMPORTANT!
To qualify for full 36 month warranty, you must register within 30 days of purchase. See inside for details.
Read these Operating Instructions Completely before attempting to use this machine. Save this manual and keep
it handy for quick reference. Pay particular attention to the safety instructions we have provided for your
protection. Contact your distributor if you do not fully understand anything in this manual.
DIRECT
CURRENT
IGBT INVERTER
TECHNOLOGY
SPIKE/
GENERATOR
SAFE
PILOT
ARC START
400V 50HZ
3 PHASE
CNC
CUTTING
CORROSION
RESISTANT
INTELLIGENT
PROTECTION
SYSTEM

CONTENT
4 Safety............................................................................................. 1
WARRANTY.................................................................................. 1
4.1 Symbols Explanation................................................................................................... 1
4.2 Machine Operating warnings!.................................................................................... 1
4.3 EMC device classification ........................................................................................... 7
4.4 EMC measure............................................................................................................... 8
4.5 Warning label ............................................................................................................... 9
1 Overview..................................................................................... 5
1.1 Features ...................................................................................................................... 10
1.2 Technical Data............................................................................................................ 10
1.3 Working Principle.......................................................................................................11
1.4 Duty cycle and Over-heat...........................................................................................11
1.5 Volt-Ampere Characteristic...................................................................................... 12
2 Installation & Operation .......................................................... 13
2.1 Layout for the front and rear panel ......................................................................... 13
2.2 Installation & Operation........................................................................................... 15
2.3 Plasma Cutting Guide ............................................................................................... 20
2.2.1 Cutting Guide .................................................................................................................... 20
2.2.2 Operating Techniques ....................................................................................................... 21
2.4 Troubleshooting ......................................................................................................... 23
2.5 Operation environment ............................................................................................. 24
2.6 Operation Notices ...................................................................................................... 25
3 Maintenance & Troubleshooting ............................................. 26
3.1 Cutting gun maintenance.......................................................................................... 26
3.2 Troubleshooting Principle......................................................................................... 26
3.3 Electrical schematic drawing.................................................................................... 29
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ADVANCECUT 75

Congratulations on the purchase of your new Stata Welding Product!
The Strata range of Welding Products from Euroquip utilises the latest design technology and is
engineered to produce welding products that combine market leading value, features and durability.
Designed for the discerning operator, who seeks professional results and quality. Design emphasis is
placed on simple design and functional operation. All Strata products are subject to stringent quality
control and are designed and manufactured to New Zealand and Australian standards.
Common applications for Strata products include:
• Engineering
• Automotive
• Manufacturing
• Farming
• Industrial Maintenance and Repair
For more industrial welding solutions, check out the full Strata Range from Euroquip at:
www.strata.co.nz
Euroquip is a market leading provider of innovative power equipment solutions to a wide range of
industries across Australasia.
Providing exceptional product support is a key component of Euroquip’s market leading customer
advantage program. As part of this program, it is required products to be registered with Euroquip to
qualify for extended product support. Products that are not registered with Euroquip are supported
by a base 12 month warranty only. Spare parts and after sales support may not be available for an
unregistered product outside of the base warranty period. If a Euroquip dealer has not already registered
your product, please register it online atwww.euroquip.co.nz. To access a physical registration form,
please download one at www.euroquip.co.nz under the contact us tab.
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ADVANCECUT 75

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PLASMA CUTTER
•ADVANCECUT 75 •
The powerful 3 phase Plasma Cutter in a tough compact package. With IGBT technology and the capability
of severing up to 35mm carbon steel with CNC interface capability, look no further than the ADVANCECUT
75 for serious industrial cutting solutions.
• IGBT module inverter technologyfor smooth & stable
output, increased reliability, high duty cycle
• Heavy Duty Italian TH-125 plasma torch as standard for
superior cutting performance and consumable life
• Designed for operating with automated CNC cutting equipment
• Pilot Arc Control System for increased cutting capability,
especially for discontinuous cutting
• Protected external air regulator with water trap/ filter for
easy adjustment & serviceability
• Safe & robust connection to machine with Euro Connect
torch system
• Increased reliability and low EMF pollution with non HF arc
starting system
• Intelligent plasma torch protection system protects plasma
torch from damage from incorrect air pressure,
consumables not in place, excessive pilot arc use.
• Lightweight & compact design, ideal for portable applications
• Intelligent machine protection system for increased
reliability & safety
• Extreme stress testing up to 550V in production for rugged
reliability.
• Protected against moisture, salt spray and corrosion
• Machine automatically shuts down if power supply phase loss
occurs, to prevent damage.
• Designed to work with generator power supply and protect
from power surges.
• Industrial damage resistant casing with front panel protection
• Set & test air pressure without the need to trigger the torch
with air flow manual activation switch
* 36 Month Warranty only with online registration of product - www.strata.co.nz
ADVANCECUT 75
DIMENSIONS: WEIGHT: INPUT POWER MAX.INPUT GENERATOR CURRENT DUTY CYCLE: CUT SEVERANCE COMPRESSED STANDARDS:
SUPPLY: CURRENT: CAPACITY: OUTPUT: CAPACITY: CAPACITY: AIR REQ.
640 x 240 x 445mm 24kg 400V AC 20A 18A 12.5KVA 20-65A 65A @ 90%
61A @100% Steel 25mm Steel 35mm 295L/min
6 Bar EN60974-1:2012
50/60Hz 3ph Alum.20mm
DIRECT
CURRENT
IGBT INVERTER
TECHNOLOGY
SPIKE/
GENERATOR
SAFE
PILOT
ARC START
400V 50HZ
3 PHASE
CNC
CUTTING
CORROSION
RESISTANT
INTELLIGENT
PROTECTION
SYSTEM

1 Overview
1 Features
•IGBT module inverter technology for smooth, stable output,
increased reliability .
•Microprocessor control system for superior & dynamic arc
characteristics.
•CNC interface connection.
•External air regulator with water trap/ filter for easy
adjustment &servicing.
•Euro connect torch system with safe & robust connection to
machine.
•Advanced strata plasma torchwith european torch head for
superior cutting performance and consumable life.
•Non HF arc starting system for increased reliability and low
EMF pollution.
•Automatic pilot arc control system for increased cutting
capability and speed, especially for discontinuous cutting.
•Strong environmental protection againt moisture, salt spray
and corrosion .
•Intelligent protection system protects plasma torchfrom
damage/incorrect /air pressure, consumables not in place,
excessive pilot arc use.
•Air flow manual activation switch to set & test air pressure,
pressure without the need to trigger the torch.
1.1 Technical Data
Models
Parameters
ADVANCECUT75
Rated input voltage（V）3-380V/400V±10%
50/60Hz
Rated input current（A）81
Rated input power（KW）8.7
Cutting current adjustment range （A） 20〜65
V054)V(egatlovdaol-oN
Duty cycle（40℃10minutes）90% 65A
100% 61A
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The max. cutting thickness to Carbon
steel（mm）≤ 30
Optimal cutting
thickness (mm)
Carbon steel ≤ 20
Stainless steel ≤ 20
Aluminum ≤ 16
Cuprum ≤14
Dimensions（mm）
32PIssalcnoitcetorP
HssalcnoitalusnI
Net weight (kg)）42
FAdohtemgnilooC
Note: The above parameters are subject to change with future machine improvement!
1.3 Working Principle
The working principle of ADVANCECUT series of Air Plasma Cutting machines is shown as the
following figure. Three-phase 380V line frequency (50/60 Hz) AC is rectified into DC, then it is
converted to medium frequency AC (about 20KHz) by inverter device (discrete IGBT), after
reducing voltage by medium transformer (the main transformer) and rectified by medium
frequency rectifier (fast recovery diode), and is outputted by inductance filtering. The circuit
adopts current feedback control technology to insure current output stably. Meanwhile, the cutting
current parameter can be adjusted continuously and steplessly to meet with the requirements of
cutting craft.
1.4 Duty cycle and Over-heat
The letter “X” stands for Duty Cycle, which is defined as the portion of the time a air plasma
cutting machine can cut continuously with it’s rated output current within a certain time cycle (10
minutes).
Rectify Inverter
Medium
frequency
transformer
Medium
frequency
rectify
Hall device
Current positive-
feedback control
Three-phase, AC DC AC DC
380V，50Hz
CDCA
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ADVANCECUT 75
640 x 240 x 445mm

The relation between the duty cycle “X”
and the output cutting current “I” is shown as
the right figure.
If the plasma cutter is overheating, the
IGBT over-heat protection sensing will send
a signal to the plasma cutter control unit to
cut the output cutting current OFF and light
the over-heat pilot lamp on the front panel.
In that case, the machine should not be
cutting for 10-15 minutes to cool down with
the fan running. When operating the machine
again, the cutting output current or the duty cycle should be reduced.
1.5 Volt-Ampere Characteristic
ADVANCECUT series of Air Plasma Cutting machines has excellent volt-ampere characteristic.
Referring to the following graph. The relation between the rated loading voltage U2and welding
current I2 is as follows:
When I2≤600A，U2＝80＋0. 4 I2（V）；When 165A<I2≤500A，U2＝130＋0. 1 I2（V）；
When I2 >500A，U2＝180（V）.
67
34
10
0060 I2（A）
U2（V）
Working
point
Volt-ampere characteristic The relation between the
conventional loading
voltage and welding current
500
80
180
U
0
The relation between the
Conventional loading
voltage and cutting current
Relation of cutting current and
duty cycle for
ADVANCECUT75
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2 Installation & Operation
2.1 Layout for the front and rear panel
Front View
(1) Cutting Current Control Knob.
(2) Power Indicator: Lights when input power
connected and machine switched on.
(3) Alarm Indicator. *
(4) Torch System Error Indicator. *
(5) Cutting Power Indicator: Lights when
cutting power circuit activated .
(6) Air Control Run/Set Switch. *
(7) Plasma Torch Euro/ Central Connector.
(8) CNC Interface Connection Port.
(9) Earth Lead Connection Socket.
Rear View
(10) Air Filter Condensate Drain Tube.
(11) Air Pressure Regulator Outlet Pressure Gauge.
(12) Air Pressure Regulator Knob.
(13) Compressed Air Inlet.
(14) Input Power Cable.
(15) Power Switch: Turn on or off the power source.
(16)Air Condensate Filter/Trap Bowl.
*Denotes moredetailed explanation of function to follow.
Further Controls Explained
Compressed Air Testing/Setting Switch
When positioned as ‘set’ compressed air control valve is open continuously. This is useful for
testing and setting the air pressure without having to activate the trigger circuit. ‘Run’ posit -
ion is normal operation.
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Torch System Error Indicator
Lights when issue with torch system or air supply detected and cutting output is disabled as a
result. Flashing light means that torch shield cap is not installed. Continuous light means likely
damaged or missing torch consumables or insufficient air pressure supply to the torch.
Alarm Indicator
Lights when over voltage,over current or electrical overheating (due to exceeding duty cycle) is
detected and protection is activated. When protection is activated, welding output will be disabled
until the safety system senses the overload has reduced sufficiently and indicator lamp goes out.
May also trigger if machine experiences an internal power circuit failure.
Air Regulator Pressure Adjustment
Correct air pressure is critical for plasma cutting. Incorrect air pressure will cause poor cut quality,
lack of cutting power, damage to the plasma torch and consumables and potentially damage the
power source. Optimum air pressure is between 0.45 and0.5MPa (65-75psi). Air pressure should
be set with the air flowing through the torch, as the pressure with the air flowing will normally be
less than static pressure, due to flow losses through the torch system. To unlock the pressure
regulator knob in order to adjust it, pull the knob upwards. Once the pressure is set correctly, push
the knob down again to lock it into place.
Air Filter/ WaterSeparator
As with correct air pressure, clean, dry air is also critical for plasma cutting machine performance
and reliability. The AdvanceCut series of Air Plasma Cutting machines are supplied with an air
filtration/moisture separator to assist with providing suitable air supply. The moisture separator is
self-draining, the water drain tube exits out the bottom of the clear condensate bowl. It is normal to
see moisture coming from this tube periodically. If excessive amounts of water or oil arebeing
produced in the condensate bowl and drain line, the compressed air supply should be checked for issues.
Pilot Arc System
The AdvanceCut series of Air Plasma Cutting machines use a pilot arc system to establish the main
cutting arc. A pilot arc system is a circuit where the return is back through the torch head and cable.
This means it can create a small arc with some cutting power without making any electrical connection
with the main machine earth. This is especially useful for starting cuts on material that does not
have a good initial earth connection, such as paint, rust, scale.
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10
Once the pilot arc is established and power is flowing back through the main earth, the pilot arc is
switched off and the main arc started. Please note the pilot arc circuit is only designed to operate
for short periods of time as an auxiliary starting system, so it has a safety protection that only
allows the pilot arc to run for short periods at a time. In addition to this, these models also have
a plot arc controller system if the main arc cuts out and the torch remains to be triggered, the pilot
arc will reignite. This is useful for cutting discontinuous workpieces like mesh or grids.
It is very important to recognize that plasma torch consumables wear as part of normal operation
and should be replaced in a timely manner. Operating a torch with worn consumables will cause
poor cutting results and possible damage to the torch and machine itself. Damage caused by
untimely replacement of consumables will not be covered by warranty.
Use the following guidelines to determine when consumables should be replaced:
Cutting Tips: The cutting tip has a small calibrated orifice that the plasma passes through. If the
orifice becomes partially blocked, deformed or enlarged, the cutting tip should be replaced.
Electrodes: The electrode has a small silver ‘hafnium’ insert in the end of the tip. This is what
generates the plasma ions. Once the hafnium insert is gone or is damaged the tip must be
replaced.
Swirl Ring/Retaining Cap: These should be replaced if broken, chipped, cracked or badly heat
damaged.
Tips and electrodes: These should wear reasonably evenly and it is normal practice to replace
them both together. If a new tip is inserted with a worn electrode the tip will wear much more
quickly than if the electrode was also replaced at that same time. If tips or electrodes are wearing
much faster than the other component it is likely to be caused by one of the following: poor
operator technique, incorrect air supply or damaged torch head.
It is also very important to only use genuine Strata consumables and parts for theTH-125 torch.
They are engineered to suit the machine and non-genuine items may cause lack of performance,
short life span, torch and machine damage and void warranty.
2.2 Installation & Operation
Electrical Connection
The AdvanceCut series is designed to operate on a 3 phase 400V AC power supply.
When the power supply voltage is over the safe work voltage, there are over voltage and under
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ADVANCECUT 75

voltage protection inside the welder, the alarm light will on, at the same time, the current output will
be cut off.
If the power supply voltage continually goes beyond the safe work voltage range, it will shorten the
welder life-span. The below measures can be used:
•Change the power supply input net. Such as, connect the welder with the stable power supply
voltage of distributor;
•Induce the machines using power supply in the same time;
•Set the voltage stabilization device in the front of power cable input.
Compressed Air Requirements
A reliable and consistent supply of clean dry compressed air is essential for proper operation.
Although the machine contains its own internal air supply filtration system it is recommended the
compressed air supply should have external filtration in the line feeding the machine, both a
standard water trap (sintered bronze filter) and also a coalescing filter (for oil in air).The air
requirement is a minimum of 120 l/min (4.5cfm) Free Air Delivery (FAD) at 75psi pressure. This
normally means the compressor must be a belt drive model or if a direct drive it must have a
motor power
of 2.5HP or greater.
The air must be dry and free of oil and moisture (normally a symptom of older, worn out
compressors). The air hose must also be of sufficient size (3/8”/10mm minimum) to supply the
machine.
Basic Operation
1) Connect the earth cable quick connector to the earth connection socket.Connect the earth
clamp to the work piece. Contact with the work piece must be firm contact with clean, bare
metal, with no corrosion, paint or scale at the contact point.
2) Connect the plasma torch to the machine central connector ensuringthe collar is done up
firmly.
3) Connect the machine to suitable mains power using the mains input power lead. Switch the
mains power switch to ‘on’ to power up the machine.
4) Connect the compressed air supply to the filter/ regulator inlet. Check the air pressure.
Trigger the air flow using the ‘set’ function, check the air pressure again and adjust if
necessary. Return the switch to ‘run’ position.
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5) Select the output current using the current control knob. You are now ready to plasma
cut!
Cutting Operation
After turning the Power Switch to the ON position and making control and air pressure
adjustments, proceed as follows:
1) Hold the tip of the Torch within 3-4mm the work piece, at about 15- 30° angle to avoid da-
maging the tip.
2) Depress the torch switch. (Airand the high frequency spark should energize).
3) As the high frequency spark jumps to the work piece, the main plasma arc will ignite and
start cutting.
4) After starting the cut, the tip can be dragged along the work piece if cutting up to 3mm thick
material. When cutting material greater than 3mm, maintain a 3.2mm tip-to-work (standoff)
distance.
5) When ending a cut, the torch switch should be released and lifted off the work piece just
before the end of the cut to minimize double-arcing which can damage the tip. This is to
prevent the high frequency arc starting from reigniting after cutting arc extinguishes.
6) In the post-flow mode, the arc can be restarted immediately by depressing the torch switch.
Turn on the
power
source
Loose the
cutting
torch
switch
Pre-gas
for 2s
the torch
leaves the
workpiece,
the cutting arc
change into
pilot arc again
press on the
cutting
switch
Ignite the
pilot arc
Post-gas for
30s
shift to the
workpiece, the
pilot arc change
into cutting arc
Arc
extinguished
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Note:
• The alarm lamp on when cutting, it is needed to loose the switch of the torch until the alarm
release, then press on the switch to start cutting again.
• In the automatic gas test and examine, press on the cutting torch, there will no reflection.
• After a long usage, the surface of the electrode and nozzle will have Oxidation reaction.
Please replace the electrode and nozzle, For The alarm lamp will on when install the shield
cup, and stop working,
CNC Socket Diagram
The AdvanceCut power supplies are equipped with an optional, factory-installed, four-position
voltage divider that is designed to be safely connected without tools. The built-in voltage divider
provides a scaled down arc voltage of 20:1, 30:1, 40:1, and 50:1 (maximum output of 18 V). An
optional receptacle on the rear of the power supply provides access to the scaled down arc
voltage and signals for arc transfer and plasma start.
Note
:
The factory presets the voltage divider to 20:1. To change the voltage divider to a different setting,
refer to the section on the next page.
The factory-installed internal voltage divider provides a maximum of 18V under
opencircuit conditions. This is an impedance-protected functional extra low
voltage (ELV)output to prevent shock, energy, and fire under normal conditions
at the machineinterface receptacle and under single fault conditions with the
machine interfacewiring. The voltage divider is not fault tolerant and ELV
outputs do not comply withsafety extra low voltage (SELV) requirements for
direct connection to computerproducts.
Note:
The cover on the machine interface receptacle prevents dust and moisture from damaging the
receptacle when not in use. This cover should be replaced if damaged or lost.
Installation of the machine interface cable must be performed by a qualified service technician. To
install a machine interface cable:
1. Turn OFF the power and disconnect the power cord.
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2. Remove the machine interface receptacle’s cover from the rear of the power supply.
3. Connect the machine interface cable to the power supply.
Refer to the following table when connecting the CUT system to a torch height controller or CNC
controller with a machine interface cable.
signal type Instruction The connector
socket Cable ends
Start (start plasma) Input
Normally open.
18 VDC open circuit voltage at
START terminals.
Requires dry contact closure to
activate.
8、9 8（yellow）、
9（green）
Transfer(start
machine
motion)
Output
Normally open. Dry contact
closure when the arctransfers.
120 VAC/1 A maximum at the
machine interface relayor
switching device (supplied by
the customer).
13、14 13（blue）、
14（white）
dnuorGdnuorG
Voltage divider Output
CUT: Divided arc signal of
20:1,30:1, 40:1, 50:1 (provides a
maximum of 18 V).
6（+）、7（-）6（red）、7
（black）
Setting the five-position voltage divider on the CUT
The factory presets the voltage divider to 20:1. To change the voltage divider to a different
setting:
1. Turn OFF the power supply and disconnect the power cord.
Arc Signal
Pilot Arc Signal
Torch Switch Signal
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2. Remove the power supply cover.
3. Locate the voltage divider DIP switches on the left side of the
power supply.
Note: the table below for the shift and scale selection
scale selection
dial number
20:1 30:1 40:1 50:1
1 ON 1 1 1
2 2 ON 2 2
3 3 3 ON 3
4 4 4 4 ON
2.3 Plasma Cutting Guide
2.2.1 Cutting Guide
Effect of Cutting Speed
Piercing Technique
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NOTE: Keep moving while cutting. Cut at a steady speed without pausing. Maintain the cutting
speed so that the arc lag is 10° to 20° behind the travel direction. Use a 5° - 15° leading angle
in the direction of the cut.
2.2.2 Operating Techniques
1. Piercing - Materials (up to 3.2mm/1/8in. thick) work. When piercing thicker materials (up
to4.8mm stainless or carbon steel) at an angle, position the torch 0.5mm (.02” ) above the
work piece.
It is advisable when piercing thicker materials to drill a small pilot/starting hole in the work
piece which makes it a lot easier and gives increased tip life. Start the cutting arc, then
immediately raise the torch to 1.6mm (1/16”) stand-off and move the torch along the cut
path. This will reduce the chance of spatter from entering the torch and prevent the possibility
of welding the tip to the plate. The torch should be angled at about 30° when starting to
pierce, and thenstraightened after accomplishing the pierce.
2. Grate Cutting - For rapid restarts,such as grate or heavy mesh cutting, do not release the
torch switch.This avoids the 2 second pref-flow portion of the cutting cycle.
3. Edge Starting – For edge starts, hold the torch perpendicular to the work piece with the front
of the tip near (not touching) the edge of the work piece at the point where the cut is to start.
When starting at the edge of the plate, do not pause at the edge and force the arc to ‘reach’ for
the edge of the metal.
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Note: The speeds given here are typical for best quality cuts. Your actual speeds may vary
depending on material composition, surface condition, operator technique, etc. If cutting speed is
too fast, you may lose the cut. With slower speeds excessive dross may accumulate. If speed is too
slow, the arc may extinguish. Air cutting typically produces a rough face on stainless steel and
aluminium.
Establish the Cutting Arc as Quickly as Possible.
4. Drag Cutting - Position torch tip slightly above work piece, press torch switch and lower
torch tip forward work piece until contact is made and cutting arc is established. After cutting
arc is established, move the torch in the desired direction keeping the torch tip slightly angled,
maintaining contact with the work piece. Avoid moving too fast as would be indicated by
sparks radiating from the topside of the work piece. Move the torch just fast enough to
maintain sparks concentration at the underside of the work piece and making sure the
material is completely cut through before moving on. Adjust drag speed as desired/ required.
5. Direction of Cut - The plasma gas stream swirls as it leaves the torch to maintain a smooth
column of gas. This swirl effect results in one side of a cut being more square than the other.
Viewed along the direction of travel, the right side of the cut is more square than the left.
To make a square-edged cut along an inside diameter of a circle, the torch should move counter
clockwise around the circle. To keep the square edge along an outside diameter cut, the torch should
travel in a clockwise direction.
6. Quality Cuts - Dross (slag) is the excess material that spatters and builds up on the underside
of the work-piece as you cut. Dross occurs when the operating procedure and technique is
less than optimal. It will require practice and experience to obtain cuts without dross.
Although less than optimal cuts will contain dross, it is relatively easy to remove by breaking
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it off using pliers or chipping off with a chisel or scraping or grinding the finished cut as
needed and is generally only a minor inconvenience.
A combination of factors contributes to the build-up of dross. They include; material type,
material thickness, amperage used for the cut, speed of the torch across the work-piece,
condition of the torch tip, input line voltage, air pressure, etc. Generally there is an inversely
proportional relationship between output current and speed of cut. Do not use more output
current than is necessary and adjust speed of cut toward minimizing dross build-up on underside
of cut. Experiment with adjusting current and speed to minimize dross.
When dross is present on carbon steel, it is commonly referred to as either ‘high speed, slow
speed, or top dross’. Dross present on top of the plate is normally caused by too great a torch to
plate distance.
‘Top dross’ is normally very easy to remove and can often be wiped off with a welding glove.
‘Slow speed dross’ is normally present on the bottom edge of the plate. It can vary from a light
to heavy bead, but does not adhere tightly to the cut edge, and can be easily scraped off. ‘High
speed dross’ usually forms a narrow bead along the bottom of the cut edge and is very difficult
to remove. When cutting troublesome steel, it is sometimes useful to reduce the cutting speed to
produce ‘slow speed dross’. Any resultant clean up can be accomplished by scraping, not
grinding.
2.4 Troubleshooting
Trouble Possible Reason Suggested Remedy
Torch will not come
on
1.Power switch OFF
2.Air supply isnot of sufficient volume or
pressure
3. Work piece ground clamp not attached.
1.Turn power switch to the ON position
2. Check air supply (60–80 PSI, 3.5cfm
required)
3. Attach to work piece or to steel table with
work piece securely clamped to table
Sparks are shooting
upward instead of
down through the
material.
1.Plasma torch is not piercing the
material
2. Torch may be too far away from the
work piece
3. Material may not be earthed properly
4. Travel speed too fast
1. Increase current
2. Decrease the distance of your torch to the
work piece
3. Check connections for proper earth
4. Reduce speed
Beginning of cut not
completely pierced Possible earth connection problem Check all connections
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Dross build-up on
parts of cuts
1. Tool/material buildingup heat
2. Cutting speed too slow or current too
high
3. Worn torch parts
1. Allow material to cool then continue cut.
2. Increase speed and/or reduce current until
dross is reduced to minimum
3. Inspect and repair or replace worn parts
Arc stops while
cutting
1. Cutting speed too slow
2. Torch is too high, away from material
3. Worn torch parts
4. Work piece earth cable disconnected
1. Increase speed until problem solved
2. Lower torch to recommended height
3. Inspect and repair or replace worn parts
4. Connect work piece earth clamp to work
piece or steel table.
Insufficient
penetration
1.Cutting speed too fast
2. Torch tilted too much
3.Metal too thick for plasma capacity
4. Worn torch parts
1.Slow down travel speed
2. Adjust tilt
3. Several passes may be necessary
4. Inspect and repair or replace worn parts
Arc sputters/flares Water in the air supply Install air drier or additional filtration
Consumables wear
quickly
1. Exceeding unit capability
2. Excessive ARC starting HF use
3. Improperly assembled torch
4. Inadequate air supply, pressure too low
5. Faulty air compressor
1. Material too thick, increase angle to
prevent blow back into torch tip
2. Do not operate HF ARC starting for more
than 3 seconds – you can also start with
torch in contact with metal or within 1/16”
of metal
3. See section ‘Replacing Consumables’
4. Check air filters, increase air pressure
5. Check air compressor operationand make
sure input air pressure is at least 100 PSI
Circuit breaker/fuse
trips while operating
Extensioncord being used is not heavy
duty
Use a heavy duty extension cord (2.5mm
diameter)
If you have any problems in setting up or operating the machine, please first re-consult this manual.
2.5 Operation environment
▲Height above sea level ≤1000 M
▲Operation temperature range -10〜+40°C
▲Air relative humidity is below 90 %( 20°C)
▲Preferable site the machine some angles above the floor level, the maximum angle does not
exceed 15°C
▲Protect the machine against heavy rain AND against direct sunshine.
▲The content of dust, acid, corrosive gas in the surrounding air or substance cannot exceed
normal standard.
▲Take care that there is sufficient ventilation during welding. There must be at least 30cm free
distance between the machine and wall.
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2.6 Operation Notices
▲Read this manual carefully before starting to use this equipment.
▲ Connect the ground wire with the machine directly.
▲Ensure that the input is three-phase: 50/60Hz, 380V ±10%.
▲ Before operation, none concerned people should not be around the working area and especially
children. Do not watch the arc in unprotected eyes.
▲Ensure good ventilation of the machine to improve Duty Cycle.
▲Turn off the engine when the operation finished for energy consumption efficiency.
▲When power switch shuts off protectively because of failure. Don’t restart it until problem is
resolved. Otherwise, the range of problem will be extended.
▲ In case of problems, contact your local dealer if no authorized maintenance staff is available!
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