Paton MINI User manual

PATON ECO DC MMA - 2 -

- 3 - PATON ECO DC MMA
ENGLISH
TABLE OF CONTENTS
1. General 5
2. Start-up 8
2.1. Intended use 8
2.2. Space requirements 8
2.3. Power connection 9
2.4. Connecting the mains plug 9
3. Manual metal arc (MMA) welding 9
3.1. “Hot-Start” function 10
3.2. “Arc Force” function 10
3.3. “Anti-Stick” function 11
4. Care and maintenance 11
5. Generator operation 12
6. Storage 12
7. Transportation 12
8. Technical data 12
9. Scope of supply 13
10. Trouble shooting 14
11. Safety rules 15
12. Source schematic wiring diagram 17
13. Warranty obligations 19

PATON ECO DC MMA - 4 -
Connection to the mains/power distribution panel (at 25°C):
CAUTION! Please, pay attention to wall wires and other extension cords!
Used electrode Set current value
Cross-section of
each core of the
mains wire, sq. mm
Maximum wire
length, m
1x 220/230V – MINI, ECO-160, ECO-200, ECO-250
Ø2 mm not more than 80 А
1.0
75
1.5
115
2.0
155
2.5
195
4.0
310
6.0
465
Ø3 mm not more than 120 А
1.5
75
2.0
105
2.5
130
4.0
205
6.0
310
Ø4 mm not more than 160 А
2.0
75
2.5
95
4.0
155
6.0
230
Ø5 mm fusible not more than 200 А
2.5
75
4.0
125
6.0
185
Ø5 mm
refractory up to 250 A
2.5
60
4.0
100
6.0
150
3 x 380/400V – ECO-315-400V
Ø2 mm not more than 80 А
0.75 100
1.0
135
1.5 205
Ø3 mm not more than 120 А
1.0
90
1.5 135
2.5 220
Ø4 mm not more than 160 А
1.5
95
2.5 160
4.0
260
Ø5 mm not more than 220 А
1.5 70
2.5 115
4.0
180
Ø6 mm not more than 315 А
1.5 45
2.5
75
4.0 115

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CAUTION! The mains button on the back of the MINI and ECO-160/200/250 models
is not a power button, therefore, when the unit is turned off, it does not de-energize
all internal electronics completely. For this reason, be sure to disconnect the plug
from the mains after completing welding work, for safety reasons.
1. GENERAL
PATON MINI, ECO-160, ECO-200, ECO-250, ECO-315-400V inverter rectifiers are
designed for direct-current manual metal arc (MMA) welding. The ECO series is designed for
demanding users who need the most compact and functional unit at its full rated current of
150A/160A/200A/250A/315A, respectively. This is enough to work with any electrodes from
Ø1.6mm to Ø6mm, including refractory ones (for ECO-315-400V), while the load duration is
at least 40%, which will allow solving most of the tasks with plenty to spare not only in the
domestic sector (workshops, auto services, etc.).
All PATON MINI and ECO branded models are equipped with an under-voltage
protection unit.
By increasing the frequency of the applied voltage to the transformer, it decreases
tens of times, which is why the unit has several times less weight and overall dimensions with
the same output parameters in comparison with conventional equipment.
Main advantages:
1. In addition to protection against voltage surges, a stabilization system is installed for
operation with significant long-term voltage drops in the supply mains from 170V to
260V (for MINI, ECO-160/200/250) and from 320V to 440V (for ECO-315-400V);
2. The unit is adapted to a standard power supply. Due to its high efficiency, the source
provides half the power consumption compared to conventional sources;
3. Convenient work due to good load duration (LD) at rated current, which allows you to weld
continuously with Ø3mm electrodes even with the weakest unit in the range (at an
ambient temperature of 25C);
4. Increased reliability of the unit in dusty production conditions;
5. All unit’s electronics are impregnated with two layers of high-quality varnish, which
ensures the reliability of the product throughout its entire service life;
6. Smooth adjustment of the welding current;
7. Improved arc stability.

PATON ECO DC MMA - 6 -
PARAMETERS MINI ECO-160 ECO-200 ECO-250 ECO-315-400V
Rated supply voltage 50Hz, V
220
230
220
230
220
230
220
230
3x380
3х400
Supply voltage variation limits, V
170 - 260
170 - 260
170 - 260
170 - 260
±15%
Rated current consumption from
the mains phase, A
18.5 20 25 32 15.3
Rated welding current, A
150
160
200
250
315
Maximum operating current, A
180
190
240
300
390
Load duration (LD)
40% / at 150A
100% / at 94A
40% / at 160A
100% / at 101A
40% / at 200A
100% / at 126A
40% / at 250A
100% / at 158A
45% / at 315A
100% / at 210A
Limits of regulation of welding
current, A
20 - 150 20 - 160 25 - 200 32 - 250 50 - 315
“Hot-Start” function
Automatic
“Arc Force” function
Automatic
“Anti-Stick” function
Automatic
No-load voltage, V
up to 80
up to 80
up to 80
up to 80
up to 70
Arc striking voltage, V
110
115
Rated power consumption, kVA
4.0
4.4
5.5
7.0
10.1
Maximum power consumption,
kVA
5.0 5.5 6.9 8.8 12.7
Efficiency, %
90
Cooling
Forced
Operating temperature range
–25 … +45ºС
Overall dimensions (length,
width, height), mm: 200 x 100 x 260 200 x 100 x 260 270 x 110 x 270 270 x 110 x 270 390 x 145 x 335
Weight without accessories, kg
3.3
3.7
4.00
4.35
9.3
Protection rating*
IP21
IP21
IP21
IP21
IP33
* IP21 housing prevents particles with a diameter of more than 5.5 mm from entering the
product, and vertically dripping water does not interfere with the unit operation
* IP33 housing prevents particles with a diameter of more than 2.5 mm from entering the
product, and also provides protection from rain when water falling down vertically or at an angle
of 60º to the vertical line does not interfere with the operation of the unit

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Recommended length of power welding cables when welding:
Maximum
current
Cable length, m
(one way)
Cross-section
area, sq. mm
Cable brand
not more than 160
А
1 ... 4
8
KG 1x8
2 ... 5
10
KG 1x10
3 ... 8
16
KG 1х16
not more than 200
А
1 ... 4
10
KG 1х10
2 ... 6.5
16
KG 1х16
3 ... 10
25
KG 1х25
not more than
250A
1 ... 6
16
KG 1х16
2 ... 9
25
KG 1х25
3 ... 13 35 KG 1х35
up to 315A
1 ... 9 25 KG 1х25
2 ... 12
35
KG 1х35
3 ... 18
50
KG 1х50
Fig. 1. Control elements and indicators

PATON ECO DC MMA - 8 -
1 – Digital seven-segment display
2 – Regulator of welding current, allowing to smoothly adjust the welding current.
3 – Power supply status indicator:
a) solid green – the unit is ready for operation;
b) off – no power supply or low voltage in the mains;
4 – Unit operation indicator:
a) off (green light for ECO-315-400V) – the unit is in a normal state;
b) red light (yellow light for ECO-315-400V) – overheating;
5 – Mains breaker (for ECO-315-400V) / switch (does not light up, the colour is adopted for
design purposes).
А – Bayonet-type power current socket "+";
B – Bayonet-type power current socket "-".
2. START-UP
CAUTION! Please, read Section 11 "Safety instructions" before starting-up.
2.1 INTENDED USE
The welding unit is intended exclusively for: MMA welding.
Any other use of the unit is inappropriate. The manufacturer bears no liability for
damage caused by using the unit for other purposes.
Proper use implies following the instructions in this operating manual.
2.2 SPACE REQUIREMENTS
The welding unit is protected against penetration of foreign particles with a diameter
of more than 5.5 mm.
The welding unit can be located and operated outdoors. The internal electrical parts of
the unit are protected from direct exposure to moisture.
CAUTION! After finishing welding in hot weather, or intensive welding in any weather,
do not turn off the unit immediately! Wait 5 minutes to let the electronic components to cool
down.
CAUTION! After an operation in the cold season, after switching off and subsequent
cooling of the unit, condensation forms inside – do not switch the unit in less than 3 to 4
hours!!!
Therefore, do not turn off the unit during the cold season if you plan to turn it on in less
than 4 hours.
CAUTION! The unit can be life-threatening after being dropped. Place the unit on a
stable solid surface.
Place the unit so that cooling air can enter and exit freely through the vents on the
front and rear panels. Make sure that no metal dust (e.g. when sanding) is sucked into the
unit directly by the cooling fan.

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2.3 POWER CONNECTION
The welding machine of series design is rated for:
1. Mains voltage is 220V (-27% + 18%) - for MINI, ECO-160/200/250;
2. Three-phase mains voltage is 3x380V or 3x400V (for ECO-315-400V); three wires are
dedicated for this. Safety rules when working with welding equipment require grounding of
the unit housing. There are two ways to do this: 1) by using the fourth wire in the mains
yellow-green cable (international marking standard); 2) by using a bolted terminal on the
rear wall of the unit (a stricter grounding standard, used in the CIS countries).
Caution! When the unit is connected to a mains voltage higher than 270V (for MINI, ECO-
160/200/250) or 450V (for ECO-315-400V), all manufacturer's warranty obligations
become invalid! The manufacturer's warranty obligations also become invalid in case of
an erroneous connection of the mains phase to the source ground.
The mains connector, the cross-sections of the mains cables, as well as the mains
fuses need to be selected based on the unit technical data.
2.4 CONNECTING THE MAINS PLUG
CAUTION! The mains plug needs to match the supply voltage and current
consumption of the welding unit (see the technical data). According to safety rules,
please, use the sockets with guaranteed grounding!!!
3. MANUAL METAL ARC (MMA) WELDING
- insert the electrode cable into the socket of the source A “+”;
- insert the grounding cable into the socket of the source B “-”;
- connect the grounding cable to the product;
- connect the mains plug to the power supply;
- turn the power switch 5to the “I” position.
Fig. 2. Connection diagram of the MMA unit
CAUTION! After the main switch 3 is switched to the "I" position, the MMA
electrode is energized. Do not touch conductive or grounded objects such as, e.g., the
housing of the welding unit, etc. with the electrode.
ELECTRODE HOLDER
GROUND TERMINAL
WORKPIECE

PATON ECO DC MMA - 10 -
3.1 “HOT-START” FUNCTION
Advantages:
- improved striking even when using poorly ignited electrodes;
- better penetration of the base material during striking, therefore, less lack of penetration;
- prevention of slag inclusions.
What helps to achieve this: for a short time at the moment of arc striking, the
welding current increases by 33% of the set value of the welding current (Fig. 3).
Example: welding with Ø3mm electrode
The value of the welding current set by the regulator is 90A.
The hot start current is 90A + 33% = 120A.
3.2 “ARC FORCE” FUNCTION
Advantages:
- increasing the stability of short-arc welding;
- improvement of the drop of metal transfer into the weld pool;
- improved arc striking;
- reduces the likelihood of electrode sticking.
What helps to achieve this:
when the voltage on the arc drops below the minimum allowable for stable arcing, the
welding current increases by 30% of the set one (Fig. 4).
Fig. 3. “HOT-START” function

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Fig. 4. “ARC-FORCE” function
3.3 “ANTI-STICK” FUNCTION
During the initial arc striking, the electrode can stick, tack to the workpiece, which
in turn can lead to overheating and incandescence, and subsequently to the electrode
damage.
If the electrode sticks to the workpiece, the unit decreases the welding current after
0.6 ... 0.8 sec. This makes it easier for the welder to separate (detach) the electrode from the
workpiece without the risk of scalding the eyes by accidentally striking the arc. After the
electrode is detached from the workpiece, the welding process can be continued
unobstructed.
4. CARE AND MAINTENANCE
CAUTION! Before opening the unit, be sure to turn it off, remove the mains plug.
Allow the internal circuits of the unit to discharge (about 5 minutes), and only then
proceed to other actions. When leaving, install a sign prohibiting to start the unit.
In order to keep the unit operational for many years, be sure to follow several rules:
-carry out a safety inspection at specified intervals (see Section "Safety rules");
-with intensive use, we recommend that you blow the unit with dry compressed air
every six months. Caution! Blowing from a short distance can result in damage to
the electronic components;
-if there is a lot of dust, clean the cooling system ducts manually.

PATON ECO DC MMA - 12 -
5. GENERATOR OPERATION
The power supply is suitable for generator operation, provided as follows:
When working with
an electrode
Set current value
Minimum generator power
Ø2 not more than 80 А 3.0 kVA
Ø3 not more than 120 А 4.5 kVA
Ø4 not more than 160 А 6.0 kVA
Ø5 fusible not more than 200 А 7.7 kVA
Ø5 refractory not more than 250A 10 kVA
Ø6 up to 315A 13 kVA
CAUTION! For trouble-free operation, the generator output voltage should not
go beyond the permissible limits of 170-260V (or 320-440V for ECO-315-400V)!
6. STORAGE
Store the conserved and packaged source under storage conditions 4 in accordance
with GOST 15150-69 for a period of 5 years.
The de-conserved source should be stored in dry closed premises at an air
temperature not lower than +5 0С. The premises should be free of acid vapours and other
active substances.
7. TRANSPORTATION
The packed source is suitable to be transported by all transport means ensuring its
safety in compliance with the transport rules established for the applicable type of transport.
8. TECHNICAL DATA
CAUTION! If the power supply is designed for a specific supply voltage, its
technical data can be found on the identification plate on the top or rear panel. In this
case, the mains plug, mains cable should be selected according to the voltage to be used.
Parameters
MINI
ECO-160
ECO-200
ECO-250
ECO-315
Rated mains voltage 50 / 60Hz, V ~ 220 ~ 220 ~ 220 ~ 220 ~ 3x380
Mains voltage variation limits, V
170 - 260
170 - 260
170 - 260
170 - 260
±15%
Efficiency, % 90 90 90 90 90
Limits of regulation of welding current,
A 20 – 150 20 - 160 25 - 200 32 - 250 50 - 315
Welding current at:
5 min / 45% LD
5 min / 100% LD
150 A
94 A
160 A
101 A
200 A
126 A
250 A
158 А
315 A
210 A

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Max. power consumption, kVA 5.0 5.5 6.9 8.8 12.7
Normal operating voltage, V:
- MMA electrode 20.4 - 25.5 20.4 - 26 20.4 - 26.5 20.4 - 27.0 23.4 - 29
9. SCOPE OF SUPPLY
1. Arc power source with mains cable - 1 pc;
2. Welding cable with electrode holder - 1 pc;
3. Welding cable with ground terminal ABICOR BINZEL - 1 pc;
4. Shoulder strap - 1 pc;
5. User manual - 1 pc;
6. Branded corrugated box / case * PATON - 1 pc.
* For MINI-C, ECO-160-C, ECO-200-C, ECO-250-C models

PATON ECO DC MMA - 14 -
10. TROUBLESHOOTING
Fault Reason Solution
No welding current
The mains switch is ON,
the status indicator is OFF
Damaged mains cable
Check the mains cable.
The supply voltage is below
155V (or one of the phases is
failed for ECO-315-400V)
Disconnect the unit and connect
to the mains with the
appropriate supply voltage
The internal power supply
unit of the source is failed
Contact the service centre
No welding current
The mains switch is ON,
the source status
indicator is green
Disconnected welding cables
Check the plug connections
Ground is not connected or
poorly connected
Establish good contact between
the ground cable and the unit
No welding current
The mains switch is ON,
the source overheat
status indicator is solid
red
Thermal sensor triggered
Wait until the unit cools down; it
will automatically turn on again
afterwards
Insufficient cooling air supply
Ensure sufficient air flow
Defective thermal sensor
Contact the service centre
Poor MMA striking,
source overheat status
indicator flashes red for a
short time
The supply voltage at the
moment of striking is close to
the minimum
admissible value of 165V (or
all phases are slumped to ~
315V for ECO-315-400V)
If it is impossible to increase the
cross-section of the supply wires,
try decreasing the value of the
set current, until the arc can be
ignited. Then use the electrode
according to the current value.
Continued on page 53

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Beginning on page 52
Fault Reason Solution
Arc extinction occurs
sporadically during
welding
The arc voltage of the
electrode used is too high
If possible, use other electrodes or a
welding unit of higher power
MMA electrode sticks
to the workpiece
Welding current too low
Set a higher welding current
Poor weld quality
(heavy spatter)
Wrong electrode polarity
Reverse the polarity of the electrode
(according to the electrode
manufacturer)
Poor ground contact
Fix the ground terminal as close as
possible to the welding area
11. SAFETY RULES
GENERAL
The welding unit is manufactured in accordance with technical standards and
established safety rules. However, if handled incorrectly, there is a hazard of:
- injury to service personnel or a third party;
- damage to the unit itself or to the company’s material assets;
- disruptions to an effective workflow.
All persons involved in the commissioning, operation, care and maintenance of the
unit must
- be appropriately certified;
- have expertise in welding;
- strictly follow these instructions.
The malfunctions that could impair safety must be urgently rectified.
USER RESPONSIBILITIES
For personal protection, observe the following rules:
- wear protective footwear that retains insulating properties, even in wet conditions;
- protect hands with insulating gloves;
- protect eyes with a protective mask with an anti-UV filter that meets safety
standards;
- use only suitable (highly inflammable) clothing.
PERSONAL PROTECTIVE EQUIPMENT
For personal protection, observe the following rules:
- wear protective footwear that retains insulating properties, even in wet conditions;
- protect hands with insulating gloves;

PATON ECO DC MMA - 16 -
- protect eyes with a protective mask with an anti-UV filter that meets safety
standards;
- use only suitable (highly inflammable) clothing.
HAZARD OF HARMFUL GASES AND VAPOURS
- remove generated smoke and harmful gases from the working area with special
means;
- ensure sufficient supply of fresh air;
- vapours of solvents should not get into the radiation zone of the welding arc.
HAZARD OF SPARKLES
- remove flammable objects from the working area;
- do not perform welding works on containers where gases, fuel, oil products are or
were stored. Potential explosion hazard for residues of these products;
- in fire and explosion hazardous areas, observe the special rules in accordance with
national and international standards.
HAZARD OF MAINS AND WELDING CURRENT
- electric shock can be fatal;
- magnetic fields created by high current can have a negative effect on the
performance of electrical devices (e.g., a pacemaker). Persons with such devices should seek
the advice of a physician before approaching a welding area;
- the welding cable must be robust, undamaged and insulated. Loose connections
and damaged cables must be replaced immediately. An electrician must systematically
check the mains cables and cables of the welding unit for proper insulation;
- do not remove the outer casing of the unit during use.
INFORMAL PRECAUTIONS
- keep the instruction near the place of use of the welding unit at all times;
- in addition to the instructions, observe the applicable general and local safety and
environmental regulations;
- keep all instructions on the welding unit legible.
STRAY WELDING CURRENTS
- make sure that the ground cable terminal is firmly connected to the unit;
- if possible, do not install the welding unit directly on an electrically conductive floor
or work table, use insulating gaskets.
REGULAR USE PRECAUTIONS
Check the unit at least once a week for external damage and the operation of the
safety units.

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12. SOURCE WIRING SCHEMATIC DIAGRAM
Wiring schematic diagram
PATON MINI, ECO-160/200/250 DC MMA
CURRENT

PATON ECO DC MMA - 18 -
Wiring schematic diagram
PATON ECO-315-400V DC MMA

- 19 - PATON ECO DC MMA
13. WARRANTY OBLIGATIONS
PATON INTERNATIONAL guarantees the correct operation of the power supply
provided that the consumer observes the rules of operation, storage, and transportation.
CAUTION! There is no free warranty service for mechanical damage to the
welding unit!
UNIT MODEL
WARRANTY
PERIOD
MINI
3 years
ECO-315-400V
ECO-160
5 years
ECO-200
ECO-250
The main warranty period starts from the date the inverter equipment is sold to the
end customer.
During the main warranty period, the seller undertakes, free of charge for the owner
of PATON inverter equipment:
- to make diagnostics and identify the cause of the malfunction,
- to provide assemblies and elements necessary for the repair,
- to carry out work to replace the failed elements and assemblies,
- to test the repaired equipment.
The main warranty obligations do not apply to the equipment:
- with mechanical damage that affected the performance of the unit (deformation of the
housing and parts as a result of falling from a height or falling of heavy objects on the
equipment, falling out of buttons and connectors),
- with traces of corrosion, which caused a malfunction,
- failed due to exposure of abundant moisture to its power and electronic elements,
- failed due to the accumulation of conductive dust inside (coal dust, metal shavings, etc.),
- in case of an attempt to independently repair its components and/or replace electronic
elements,
- it is recommended to clean the internal elements and assemblies of this equipment, with
compressed air, to remove the protective cover, depending on the operating conditions,
once every six months, in order to avoid the breakdown of the unit. Cleaning should be
done carefully, keeping the compressor hose at a sufficient distance to avoid damage to
the soldering of the electronic components and mechanical parts.
Also, the main warranty obligations do not apply to failed external elements of the
equipment exposed to physical contact, and related/consumable materials; the claims to the
following are accepted no later than two weeks after the sale:
- on and off button,
- knobs for adjusting welding parameters,
- connectors for connecting cables and hoses,

PATON ECO DC MMA - 20 -
- control connectors,
- mains cable and mains cable plug,
- carrying handle, shoulder strap, case, box,
- electrode holder, ground terminal, torch, welding cables and hoses.
In the event of warranty service, the customer must ship the welder at his own expense.
The seller reserves the right to refuse to provide warranty repairs, or to set the
month and year of manufacture of the unit as the start date for the fulfilment of warranty
obligations (established by the serial number):
- if the owner loses the data sheet,
- in the absence of correct or even any kind of entries in the data sheet by the seller when
selling the unit,
- the warranty period is extended for the period of warranty service of the unit in the service
center.