Panasonic YD-350FD2 User manual

Operating Instructions
Digital IGBT controlled
MIG/MAG Arc Welding Power Source
Model No.: YD-350/500FD2
●Thank you for your purchase of Panasonic welding power source.
●Before operating this product, please read the instructions carefully and save this manual
for future use.First of all, please read “Safety precautions” or “Safety manual”.
●SPEC. No.：YD-350FD2HGY, YD-500FD2HGY.
Panasonic Welding Systems (Tangshan) Co., Ltd.
WTD044TE0PAA00

■Features
●LED digital display and soft-touch buttons for easy and convenient operation
●The wire feeder equipped with encoder provides stable and high-precision wire feeding control
●The welding parameters can be recorded & called
●The enhanced mobility, robust structure and dust tightness
■The applicable welding methods
welding methods
welding wire
material
welding
method
shielding gas
pulse
wire
diameter
(mm)
extension length (mm)
Root
welding
semi-
automatic
automatic
welding
Si- Al
MIG
100%Ar
DC pulse OFF
1.2
HND
×
×
1.6
HND
×
×
DC pulse ON
1.0
HND
×
×
1.2
HND
×
×
1.6
HND
×
×
Al-Mg
MIG
100%Ar
DC pulse ON
1.2
HND
×
×
1.6
HND
×
×
Al (OP1）
MIG
100%Ar
DC pulse ON
1.2
HND
×
×
1.6
HND
×
×
2.0(OP1)
HND
×
×
Note: × stands for no data, ○stands for standard configuration data,.

Table of Contents
1 SAFETY......................................................... 1
1.1 WARNING SYMBOLS FOR SAFE USAGE............... 1
1.2 SAFETY PRECAUTIONS.........................................2
2 RATED SPECIFICATIONS.........................4
2.1 SPECIFICATIONS TABLE........................................4
2.2 RATED DUTY CYCLE............................................. 5
2.3 THERMAL PROTECTION........................................ 5
2.4 DIMENSIONS......................................................... 6
3 INSTALLATION AND POWER SUPPLY
FACILITY.......................................................... 7
3.1 INSTALLATION SITE............................................... 7
3.2 INSTALLATION TRANSPORTATION......................... 8
3.3 POWER SUPPLY EQUIPMENT................................9
4 CONFIGURATION..................................... 10
4.1 ROBOT WELDING SYSTEM................................. 10
4.2 EQUIPMENT NECESSARY FOR WELDING........... 11
4.3 CONNECTING CABLE..........................................12
5 NAMES AND FUNCTIONS...................... 14
5.1 THE POWER SWITCH..........................................14
5.2 REAR SIDE..........................................................14
5.3 FRONT PANEL.....................................................15
6 CONNECTION............................................18
6.1 THE CONNECTION OF OUTPUT CABLE.............. 18
6.2 THE CONNECTION OF THE GROUNDING WIRE
.................................................................................19
6.3 THE CONNECTION OF INPUT CABLE.................. 19
7 PREPARATION AND TERMINATION
PROCESSINGS.............................................20
7.1 PREPARATION.....................................................20
7.2 TERMINATION PROCESSING (STEPS AFTER
WELDING OPERATION).............................................. 20
8 SETTINGS...................................................21
8.1 FUNCTION SETTINGS......................................21
8.1.1 “F. ADJ”.......................................................... 21
8.1.2 “CALL” and “RECORD”...............................24
8.2 THE WELDING MACHINE FACTORY DEFAULTS
RESET........................................................................24
8.3 WELDING PREPARATION.................................... 25
8.4 CHECKING SHIELD GAS..................................... 25
9 OPERATION............................................... 26
9.1 “NO CRATER”..................................................26
9.2 “CRATER”.........................................................27
9.3 “INI. &CRATER”...............................................28
9.4 “CRATER REPEAT”OPERATION.......................... 29
9.5 “ARC SPOT”.................................................... 30
10 MAINTENANCE AND INSPECTION....31
10.1 DAILY CHECK....................................................31
10.1.1 Welding machine (This product)..............31
10.1.2 Cables..........................................................31
10.1.3 Other devices............................................. 32
10.2 PERIODIC CHECK................... .......................32
10.3 PRECAUTIONS FOR WITHSTAND VOLTAGE TEST
AND INSULATION RESISTANCE MEASUREMENT........33
10.3.1 Test preparation......................................... 33
10.3.2 After completion of the test.......................34
11 TROUBLESHOOTING............................35
11.1 ERROR INDICATION.......................................... 35
11.2 TROUBLESHOOTING TABLE..............................37
12 PARTS LIST............................................. 38
12.1 PARTS LIST FOR FD2...................................... 38
12.2 FD2 PARTS DIAGRAM...................................... 40
13 CIRCUIT DIAGRAM................................ 42
13.1 CIRCUIT DIAGRAM FOR YD-350FD2HGY.....42
13.2 CIRCUIT DIAGRAM FOR YD-500FD2HGY.....43
14 APPENDIX................................................ 44
14.1 MIG WELDING PULSE OFF CONDITIONS TABLE
(REFERENCE)..........................................................44
14.2 MIG WELDING PULSE ON CONDITIONS TABLE
(REFERENCE)........................................................... 44

Safety
1
1 Safety
1.1 Warning symbols for safe usage
Each symbol describes things to be observed to prevent you and other personnel from hazardous conditions or
damage to property.
●The followings explains harzardous conditions or
damages that are classi-fied into the following
three levels.
●The following symbols indicates things to be
observed.
Things that MUST NOT be
performed.
A hazardous situations including death or serious
personal injury is imminent.
Things that MUST be performed.
The potential for a hazardous accident including
death or serious personal injury is high.
Things attention must be paid to.
The potential for hazardous accident including light
personal injury and/or the potential for property
damage are high.
◆Disclaimer：
Panasonic Welding Systems（Tangshan）Co., Ltd., (hereinafter called “PWST”) and its affiliates (including any
subcontractor, sales company or agent) shall not assume or undertake any responsibility or liability of the
followings:
•Any problem arising out of, or directly or indirectly attributable to,the failure of user to carry out those normal
maintenance, normal adjustment and periodical check of this product.
•Any problem arising out of any force majeure, including but not limited to, act of god.
•Any malfunction or defect of this product that is directly or indirectly the result of any malfunction or defect of one
or more related parts or products that are not supplied by PWST. Or any problem arising out of, or directly or
indirectly attributable to, the combination of this product with any other product, equipment, devices or software
that is not supplied by PWST.
•Any problem arising out of, or directly or indirectly attributable to,user’s failure to strictly carry out or follow all of the
condition sand instructions contained in this instruction manual, or user’s misusage, mishandle, operational miss
or abnormal operation.
•Any problem arising out of this product or the use of it, the cause of which is other than the foregoing but is also
not attributable to PWST.
•Any claim of a third party that this product infringes the intellectual property rights of such third party that are
directly or indirectly caused by user’s use of this product and relate to the method of production.
●The description of this manual is based on the contents as of Apr. 2021.
●The contents of this manual are subject to change without further notice.
●English version is the original instructions.

Safety
2
1.2 Safety precautions
Welding power source
Observe the following instructions to
prevent the hazard.
(1)Never use the welding power source for other than
welding purpose. (e.g. Never attempt to use the
welding power source for pipe thawing.)
(2)It is very important to comply with all instructions,
safety warnings, cautions and notes mentioned.
Failure to do so can result in serious injury or even
death.
(3)Work of driving source at the input side, selecting
work site, handling, storage and piping of high
pressure gas, storage of welded products and also
disposal of waste should be performed according to
the operating instructions and national, state and
local codes and regulations.
(4)Prevent any unauthorized personnel to enter in and
around the welding work area.
(5)Pacemaker wearers should consult their doctor
before going near arc welding. Magnetic fields can
affect pacemakers.
(6)Only educated and/or skilled persons who well
understand this welding power source should
install, operate, maintain and repair the unit.
(7)Only educated and/or skilled persons who well
understand the operating instructions of the unit
and are capable of safe handling should perform
operation of the unit.
Against electric shock
Observe the following instructions to
prevent the hazard.
(1)Do not touch live parts.
(2)Grounding of the case of the welding power and
base metal or a jig electrically connected to the
base metal must be performed by educated and/or
skilled persons.
(3)Before installation or maintenance work, turn off
power at the power box, wait it for at least five
minutes to discharge capacitors. Significant voltage
may exist on capacitors after turning off power at
the power box so it is imperative to check to make
sure that no charged voltage present at capacitors
before touching any parts.
(4)Do not use undersized, worn, damaged or bare
wired cables.
(5)Connect cables firm and insulate connection parts.
(6)Keep all cases, panels and covers securely in
place.
(7)Do not handle the welding power source with torn
or wet gloves.
(8)Wear safety harness in case of working above floor
level.
(9)Turn off all equipment when not in use.
(10)Perform periodic checks without fail and repair or
replace any damaged parts before using the power
source.
Ventilation and protective equipment
Oxygen deficit, fume and gas
generated during welding can be
hazardous.
(1)When conducting welding in the bottom of the tank,
boiler or hold as well as legally-defined sites, use a
local exhauster specified by the applicable laws and
regulations (occupational safety and health
regulation, rules on preventing suffocation or etc.)
or wear protective breathing gear.
(2)To prevent dust injury or poisoning by the fume
generated during welding, use a local exhauster
specified by the applicable law (occupational safety
and health regulation, rules on preventing injury by
inhaled dust or etc.), or wear protective breathing
gear.
(3)When conducting welding in a confined area, make
sure to provide sufficient ventilation or wear
protective breathing gear and have a trained
supervisor observe the workers.
(4)Do not conduct welding at a site where degreasing,
cleaning or spraying is performed. Conducting
welding near the area where any of these types of
work is performed can generate toxic gases.
(5)When welding a coated steel plate, provide
sufficient ventilation or wear protective breathing
gear. (Welding of coated steel plates generates
toxic fume and gas.)
Against fire, explosion or blowout
Observe the following cautions to
prevent fires explosion or
blowout.
(1)Remove any combustible materials at and near the
work site to prevent them from being exposed to
the spatter. If they cannot be relocated, cover them
with a fireproofing cover.
(2)Do not conduct welding near combustible gases.
(3)Do not bring the hot base metal near combustible
materials immediately after welding.
(4)When welding a ceiling, floor or wall, remove all
flammables including ones located in hidden
places.
(5)Properly connect cables and insulate connected
parts. Improper cable connections or touching of
cables to any electric current passage of the base
metal, such as steel beam, can cause fire.
(6)Connect the base metal cable at a section closest
to the welding part.
(7)Do not weld a sealed tank or a pipe that contains a
gas.
(8)Keep a fire extinguisher near the welding site for
an emergency.

Safety
3
Installing shielding (curtain etc.)
Arc flash, flying spatter, slugs, and
noise generated during welding can
damage your eyes, skin and
hearing.
(1)Install a protective curtain around the welding
manipulator site to prevent the arc flash from
entering the eyes of people in the surrounding area.
(2)When welding or monitoring welding, wear safety
glasses with sufficient light blocking structure or
use a protective mask designed for welding
operation.
(3)When welding or monitoring welding wear protective
clothing designed for welding operation, such as
leather gloves, leg cover and leather apron, and also
wear long-sleeve shirts.
(4)Be sure to wear noise-proof protective equipment if
the noise level is high.
(5)The larger the welding current is, or in case of AC
TIG or MIXTIG welding, the larger the AC frequency
is, the larger the arc sound becomes.
Gas cylinder and gas flow regulator
Overturn of gas cylinder and blowout
of gas flow regulator can cause
injury.
(1)The gas cylinder must be handled properly according
to the applicable law and in-house standards.
(2)Use the gas flow regulator that is supplied or recom-
mended by our company.
(3)Read the instruction manual of the gas regulator prior
to using it, and observe the cautions in the manual.
(4)Secure the gas cylinder to a dedicated gas cylinder
stand.
(5)Do not expose the gas cylinder to high temperature.
(6)When opening the valve of the gas cylinder, do not
bring your face close to the discharge outlet.
(7)When the gas cylinder is not used, be sure to install a
protective cap.
(8)Do not hang the welding torch on the gas cylinder, or
touch the gas cylinder with the electrode.
(9)Do not attempt to disassemble or repair the gas
regulator. Such works require special knowledge.
Rotating parts
Rotating parts can cause injury.
(1)Keep away from rotating parts such as cooling fans，
and feed roller of the wire feeder, or hand, finger(s)，
hair or part of your clothes may be caught by the
parts resulting in injury.
(2)Keep all covers, panels and cases closed when
using the product.
(3)Maintenance work and repair should be perform only
by educated and/or skilled persons who thoroughly
understand welding machines. While
performing maintenance work or repair work, provide
fence or the like around the welding machine so that
unauthorized person can not come close carelessly.
Welding wire
Welding wire, especially wire tip part
can cause injury.
(1)Do not perform inching operation or pull the torch
switch with your eyes, face or body close to the end
of the welding torch - wire extends out from the
end of the welding torch and may stick into the
eye, face or body.
(2)In case of using a torch cable with the resin liner,
straighten the torch cable and reduce the preset
feed amount (current) to a half or less before
applying the wire inching.
(3)Performing wire inching while torch cable has been
bent extremely can cause the wire to pierce the
resin liner and cable. Make sure to replace any
damaged liner or cable with a new one, or
damaged liner/wire can cause gas leak or dielectric
degradation.
.Against insulation deterioration
Insulation deterioration can cause fire of
welding power source.
(1)Keep enough distance from welding power source
when performing welding or grinding work so as to
prevent spatters or iron particles from getting
into the power source.
(2)Perform check and maintenance work periodically
so as to prevent insulation deterioration due to
accumulated dust or dirt.
(3)When spatters or iron particles get into the welding
power source, turn off the power switches of the
welding power source and power distribution box,
and then blow out.
(4)Make sure to replace any damaged liner or cable
with a new one as use of damaged liner/cable may
cause gas leak or dielectric degradation.
(5)In order to avoid dust and dirt to be collected inside
of the power source, make sure not to leave the
panel and bolts (including eyebolts) open and
removed.

Rated Specifications
4
2 Rated Specifications
2.1 Specifications table
Item
Unit
Contents
YD-350FD2
YD-500FD2
Control method
-
digital IGBT control
Rated input·
Number of phases
-
3-phase AC 380/415 V
Input power frequency
Hz
50/60
Rated input capacity
kVA/kW
17.6/13.5
29.9/23.9
Output characteristics
-
CV( constant voltage characteristics )
Rated output current
A
DC 350
Pulse OFF：DC 500
Rated output voltage
V
31.5
39
Rated duty cycle
%
60
Rated output no-load
voltage
V
DC 80
Output current range
(※Note)
A
DC 40~430
DC 60~500
Output voltage range
(※Note)
V
16~35.5
17~39
Welding method
-
individual / unitary
Enclosure protection
class
-
IP23S
Insulation class
-
main transformer 155 ℃( inductor 200 ℃)
EMC classification
-
A Grade
Cooling method
-
forced air cooling
Applicable welding wire
type
-
Al Si / Al Mg
Applicable welding wire
diameter
mm
Al Si / Al Mg1.2/1.6
Memory
-
100 channels can be called, welding parameters
recordable
Sequence
-
welding / welding — crater / initial — welding — crater /
spot welding
Shielding gas
-
MIG Al welding Ar:99.99%
Gas check time
-
60s ( longest gas check time )
Pre-flow time
-
0 s–5.0 s continuous adjustment (0.1 s increment)
After-flow time
-
0 s–5.0 s continuous adjustment (0.1 s increment)
Spot welding time
-
0.3 s–10.0 s continuous adjustment (0.1 s increment)
Capacity of liquid
cooling system
L
9
Cooling mode of liquid
cooling system
Coolant circulation cooling / water pump forced circulation
Cooling capacity of
liquid cooling system
kW
1.5（Test at 1 L / min flow rate）
Coolant flow
L/min
>1（Matching Panasonic products）
Maximum range of
coolant
m
20
Overall dimensions
mm
1200x570x1060 ( LXWXH )
Mass
kg
124
133

Rated Specifications
5
2.2 Rated duty cycle
■YD-350FD2
● The rated duty cycle is 60 %. This means that the machine can cut for a total of 6 minutes out of any 10 minutes at the
rated current, and then, during the remaining 4 minutes, the machine must be cooled down to prevent overheating.
● Exceeding allowable duty cycle can cause the temperature rise higher than the maximum allowable temperature,
resulting in the performance degradation or damage.
● The figure above shows the ideal value of cutting current and duty cycle. Please use the machine within the
corresponding duty cycle of cutting current.
■YD-500FD2
● The rated duty cycle is 60 %. This means that the machine can cut for a total of 6 minutes out of any 10 minutes at the
rated current, and then, during the remaining 4 minutes, the machine must be cooled down to prevent overheating.
● Exceeding allowable duty cycle can cause the temperature rise higher than the maximum allowable temperature,
resulting in the performance degradation or damage.
● The figure above shows the ideal value of cutting current and duty cycle. Please use the machine within the
corresponding duty cycle of cutting current.
2.3 Thermal protection
● Cutting power source is equipped with a thermal switch at the radiator fin of IGBT to monitor the temperature.
● When the abnormal temperature happens, the thermal switch takes action and cut off the output.
● Please be sure not to use under the conditions listed here:
● Over the rated output voltage.
● The air inlet or outlet is blocked.
● The ambient temperature is higher than 40°C.
● The cooling fan stops.

Rated Specifications
6
2.4 Dimensions
机型
W
H
L
YD-350FD2HGY
570
1060
1200
YD-500FD2HGY

Installation and Power supply facility
7
3 Installation and Power supply facility
When installing or transporting the cutting machine, wear long sleeve shirts, leather gloves and
safety shoes to prevent injury.
3.1 Installation site
(1) Locate indoors only, where the floor is capable of supporting the weight of the product.
(2) Avoid exposure to the direct sun light or the rain or water spray.
<Note>
If exposed to the rain or water spray, or dew
condensation occurred, dry the product
before using it.
(3) Ambient temperature
(a) During cutting operation: -10 °C to 40 °C
(b) During transportation/storage: -20 °C to 55 °C
(4) Humidity relative to temperature
(a) Up to 50 % at 40 °C.
(b) Up to 90 % at 20 °C.
(5) Altitude above sea level: Up to 1 000 m.
(6) Inclination to installation surface: Max. 10 °
(7) Do not block cooling air intake of the cutting
power source
• From the wall: 200 mm or more.
(8) Avoid wind to the arc. (Provide windshields.)
(9) Free from abnormal amounts of dust, acid, corrosive gases or substances etc. other than those generated by
the cutting process.
Note:
● In case the machine with wheels is placed on an
inclined surface, machine may slide by itself.
● Please use stop device
● Please do NOT turn over and lay the machine down
on the floor.
● Up-side-down use can worsen cooling performance
of the machine and may cause the machine burnt or
overheated.
● Please vertically place the machine on the horizontal
surface.
Please
● When the product is installed on the floor where it is too low to operate, customers
are required to prepare a table to mount the product on.
● Such table should be provided with flanges on the mounting surface to prevent the
product to slide off the table.
200 mm
or more
300 mm
or more

Installation and Power supply facility
8
3.2 Installation transportation
When hanging this product for transportation, hang it at two eyebolts.
●The hoisting operation
●
During
hoisting operation, please do NOT use the handles.
● When
the
machine is moved downwards by hoist, please be
sure to use the eye bolts and hang the machine with two points.
●The machine is carried by hands
● When
the
machine is carried manually, single person can NOT
carry it on. More than one person are required to do this job.
Note:
● If the eye bolts are missing or damaged, please contact with
the distributor of the Company.
● Please purchase the genuine parts which comply with strength
assessment.
● The model number of the eye bolt is R825M10
●Pushing the machine by hands
● There are wheels under the machine. The machine can be pushed by hands. During moving, please do not
make sharp turn to protect wheels and floor.
● Please do NOT place the machine on the slope 。( The Product has wheels, which cause the machine to
move on the inclined surface by itself. )
●Do not lift the product on your own.
As this product is heavy, it is dangerous to lift it on your own. Involve plural
number of persons with its lifting.
●Do not leave the product on a slope. (The product is provided with
casters.)
●When pushing this product for transportation, do not make a sharp turn,
or casters or floor may be damaged.
Storage, installation, transportation please do not pile up over two layers.
Two-point
suspension

Installation and Power supply facility
9
3.3 Power supply equipment
Observe the following to prevent burnout, destruction of parts and unstable
arc.
welding power source
YD-350FD2HGY
YD-500FD2HGY
Input power source
Three phase ,380V/415V AC,
50 / 60 Hz (common)
Capacity
Commercial power source
20 kVA or more
35 kVA or more
Engine generator
Two times rated input or more
Input protection
(Power distribution box)
Fuse breaker
40 A
63 A
Molded case circuit breaker
(or leakage breaker)
50 A
80 A
Cross-section area
Of cable
Input power cable
6 mm2or more
10 mm2or more
Output power cable
50 mm2or more
70 mm2or more
Ground cable
The same as input power cable or bigger
Protection level
IP23S
Insulation level
main transformer 155 ℃( inductor 200 ℃)
class of pollution
Grade 3
EMC classification
A Grade
*1. The listed capacities of fuses and breakers (or leakage protectors) are only for reference.
*2. When the machine is working at the places where are moist or on the iron plate or stand, please be sure to
install leakage protector.
Note:
please follow the regulations listed below to avoid any damage of parts, unstable arc and overheat or damage of
the machine.
● The fluctuation range of input: the allowable rated input voltage is 304V ~ 456V.
● When the generator is used, the rated input capacity should be two times of cutting power source or higher. The
generator should be equipped with compensating coils.
● The wiring of input side: please equip each cutting power source with one fuse switch or non-fuse breaker (or
leakage breaker) of which capacity complies with the rated one of the cutting power source.
● Please select the proper breaker (or leakage breaker) which is applicable to electric distribution, such as cutting,
electric motor or transformer.

Configuration
10
4 Configuration
4.1 Equipment necessary for welding
Note:
the diagram below shows the connection with the welding power source. Please be sure to use the wire
feeder, welding gun, gas regulator of the Product as set equipment. Otherwise the welding performance may
be affected or the machine can be even damaged.
Before using the Product with other standard products, please read the operation manual carefully.
NO
item
remarks
⑤
Grounding
cable
6 mm2 or
higher
10 mm2 or
higher
⑥
Distribution
box
3-phase AC 380 -415V
⑦
power source
input cable
6 mm2 or
higher
6 mm2 or
higher
⑧
Grounding
cable
6 mm2 or
higher
6 mm2 or
higher
⑨
shielding gas
Ar(99.99%)
NO.
item
remarks
①
Welding
power
source
YD-
350FD2HGY
YD-
500FD2HGY
②
wire feeder
YW-
35DEW1HF1
YW-
50DEW1HF1
③
Torch
YT-40MFW3HPF
④
base metal
welding
cable
50 mm2 or
higher
70 mm2 or
higher
Reminder
②
①
③
⑨
⑤
④
⑦
⑧
⑥

Configuration
11
4.2 Connecting cable
Caution against getting the cable wet.
Avoid the connecting cable to get wet.
If there is a chance of getting the cable exposed to rain or water splay,
make sure to protect the connection with waterproof cover.
Water seeping into the machine may degrade the insulation between
ter- minals, which may cause an error or damage this product or wire
feeder.
4.2.1 About connecting cable
● The connecting cable (separately sold) is useful to expand the working space in welding operation. (See
the table on the right for model numbers.)
● Apply the connecting cable between torch output terminal (+) of the product and the torch cable of the wire
feeder.
● Depending on work conditions, it may be necessary to extend the base metal cable.
Note:
It is not possible to use the connecting cable as a junction cable.
4.2.2 Cautions about using connecting cable
● Select a model properly and use connecting cable properly, or adverse impact on welding operation, such as
voltage drop, may result. Voltage drop may be resulted from the reactance caused by the conductor resistance
or cable routing manner. The longer the cable is or smaller the cross section is, the more likely an adverse
impact occurs.
● To minimize such adverse impact, pay attention to the fol- lowing points.
（1）Relationship among extending length, cross section, allowable current and duty cycle.
（2）Arrange the base metal cable corresponding to the applied connecting cable.
（3）Do not extend the cable unnecessarily. (A shorter cable is preferable)
（4）Do not use leave the connecting cable slackened. Never coil the connecting cable when welding, or the
welding arc may become unstable.
（5）Connect the base metal voltage detection wire (-) to the base metal voltage detection terminal (-).
（6）Do not use the connecting cable as a junction cable.
Welding power source
Cross section
Length
YD-350FD2HGY
50 mm2
L≤13.2 m
YD-500FD2HGY
70 mm2
L≤18.2 m

Configuration
12
4.3 connections& operations of the cooling system
●Precautions when adding coolant
When adding or replenishing coolant, please proceed from the front [coolant supply port
Contact with live parts will cause fatal electric shock. To avoid casualty
accident, please observe the following precautions
When adding coolant, the power switch and the switch of power distribution box must be turned off
In the process of coolant replacement,
please insert the exhaust connector at
the coolant outlet. After the coolant is
filled, please pull out the exhaust
connector in time. The exhaust
connection is suspended near the
coolant outlet.
NOTE: it may cause faults once there is coolant splashing on the power supply or this product. Wipe the liquid drop
immediately
To avoid injury, please observe the following rules
When the temperature of the coolant increases during operation, the
exchange of coolant should be conducted after the temperature drops
1. Replace the coolant after the temperature drops.
2. Do not touch the hose plug during operation
3. Check and maintain after confirming the temperature drop.
●Connection
（1）Connection for coolant outlet
Connect the water outlet cable on the wire feeder to the coolant outlet.
（2）Coolant inlet connection
Connect the return water cable on the wire feeder to the coolant outlet.
●Operation confirmation
（1）Confirmation before operation
In order to avoid idling, it is necessary to confirm whether the connections are reliable and whether the
liquid level of the coolant tank is above the minimum level line.
NOTE: Air transfer will cause pump failure.
（2）Confirmation in operation
After turning on the power switch, make sure that there is cooling air blowing out from the side panel of the
liquid cooling system. Otherwise, the power supply should be disconnected immediately to find out the cause.
（3）Operation sequence
・Turn on the power supply of the welding machine, the water pump and fan start to run, and the coolant
circulates in the welding gun.
NOTE: For the first time, it takes about 10 seconds from the start of pump operation to the completion of the
first water circulation.
（It varies according to the length of the waterway）。
・Due to the long pipeline, it takes up more coolant. If the coolant level is below the lower limit (min), stop
the operation for coolant replenishment, and add the coolant to the position above the min.
・At the end of the operation, the power should be turned off after the welding gun has cooled down
sufficiently.
・When the welding machine is standby for more than 7 minutes, the coolant circulation device will
automatically stop running and enter the power saving mode. When the welding gun switch is pressed
again, the cooling liquid circulating device will run again.
exhaust
connector

Configuration
13
●About coolant
（1）ensure to use antifreeze as coolant
Please use ethylene glycol antifreeze (other salts and alcohol antifreeze may corrode metal parts such as
welding gun and water pump).
NOTE: When using the coolant, please use the same brand of antifreeze from the same manufacturer. It is
forbidden to mix the antifreeze from different manufacturers.
Please buy antifreeze according to the local minimum temperature. The freezing point of antifreeze should
be lower than the minimum temperature of the environment.
（2）In order to avoid the formation of coolant scale in the bucket, please change the coolant regularly.
Antifreeze once a year.
（3）When not in use for a long time, be sure to remove the coolant from the coolant tank and coolant pipe
Some components in the coolant will precipitate in the coolant pipe, which will cause the water pump not to
operate normally Method of removing cooling liquid.
The water inlet pipe joint of the welding torch is inserted into the coolant inlet of the liquid cooling system,
and the exhaust joint is inserted into the coolant outlet of the liquid cooling system.
Blow the compressed air from the exhaust joint to discharge the coolant from the outlet pipe joint of the
welding gun.

Names and functions
14
5 Names and functions
5.1 The power switch
About power switch:
● When the power switch is turned off automatically, do not turn it on
again. (Consult with sales distributor of Panasonic representatives.)
● When activating a power generator, turn off the power switch.
5.2 rear side
note ・Turn the power switch knob clockwise to turn on
the power, and the LED digital tube will display the
software version number after about 1 second.
・About 4 seconds after the software version
number is displayed, the AC contactor is closed, and the
cooling fan behind it will start to run.
①(－) Base material side output terminal
②(＋) Torch side output terminal
③control cable
power
switch
①
③
②

Names and functions
15
5.3 Front panel
Note: for robot welding, be sure to set the machine on “ crater OFF ” status.
NO.
name
description
○
1
temperature
abnomal indicator
● When abnormal rise in important components temperature occurs, temperature
abnomal alarm is sent, this lamp blinks and the welding operation stops. Welding
operation cannot be restarted unless this lamp is turned off. ( For troubleshooting:
Section 13.1).
○
2
current display
7-segment LED
● When Mode selection key ○
12 is set to“ Weld ”
・On stand-by status,, it shows the current value set in ○
3
・During welding, it shows the current value of the actual output.
● When Mode selection key ○
12 is set to“F. Adj” ( Section 5.4)
・It shows fine adjusting setting items PXX(XX stands for 00->29), default display
CH-OFF( voltage display LED○
5shows its specific set value ).
● When Mode selection key ○
12 is set to “ Call ” ( Section 5.6)
・The default display CH-OFF. By turning the Jog-dial ○
7, select channel number,
LED shows “CH” channel. If welding parameters are available, the channel can be
selected, else the corresponding channel can NOT be selected. When the channel
stored with data is selected, the channel and parameters are displayed alternately
and welding can start.
● When Mode selection key ○
12 is set to “ Record ” ( Section 5.6)
・By turning the Jog-dial ○
7, channel number can be selected. LED shows “CH”
setting current and voltage. Flashing means welding parameters are being stored.
・Press selection key ○
12 to return to “ Weld ” from “ Record ” and the corresponding
parameters are recorded in the channel being selected.
● When a self-diagnosable error occurs, ( For troubleshooting: Section 13.1)
・it shows Err( voltage display LED○
3shows alarm signal number ).
○
3
setting
“ current ”
“ wire feeding
speed ”
“ plate thickness ”
“ spot welding
time ”
function select
● When “ current ” / “ wire feeding speed ” function is selected, the setting method of
the corrosponding selection number is decided by P11 of “F. Adj” function menu.
When P11 is 0, it is adjusted by wire feeder potentiometer; when P11 is 1, it can
be changed by Jog-dial ○
4. Note “ plate thickness ” can be displayed only instead
of being changed.
● “ spot welding time ” function is adjusted by Jog-dial ○
4.
Note To change“ spot welding time ”, welding control ○
13 is to be selected as “ spot
welding ” function.
○
1
○
2
○
5
○
3
○
6
○
12
○
7
○
13
○
4
○
16
○
15
○
14
○
17
○
11
○
9
○
10
○
8
○
18

Names and functions
16
○
4
Jog-dial
● When Mode selection key ○
12 is set to “ Weld ”, (refer to description in ○
3)・when
key ○
3selects different options, please adjust corrosponding set value according
different items.
・During welding, “ Welding ” current can be adjusted. However “ initial ” and
“ crater ” current can NOT be changed.
● When Mode selection key ○
12 is set to “F. Adj”,( Section 5.4) ・refer to
detailed description.
● When Mode selection key ○
12 is set to “ Call ”,
・It does not function.. ( When“ Call ” is selected, only Jog-dial ○
7, key ○ 8,○
10 ,○ 12
work. )
● When Mode selection key ○
12 is set to “ Record ”,
・It does not function.. (When “ Call ” is selected, only Jog-dial ○
7, key ○ 8,○ 10 ,○ 12
work. )
○
5
voltage display
7-segment LED
● When Mode selection key ○
12 is set to “ Weld ”,
・On stand-by status, ○
6data of the item being selected is shown.
・During welding, it shows the voltage value of the actual output.
● When Mode selection key ○
12 is set to “F. Adj”, ( Section 5.4)
・It shows specific set values.
● When Mode selection key ○
12 is set to “ Call ”,( Section 5.6)
・Use Jog-dial ○
7to select channel number. LED shows corresponding channel
number. If the welding parameters are avilable in the channel, the channel can be
selected, else the corresponding channel can NOT be selected. When the channel
stored with data is selected, the channel and parameters are displayed alternately
and welding can start.
● When Mode selection key ○
12 is set to “ Record ”, ( Section 5.6)
・By turning the Jog-dial ○
7, channel number can be selected. LED shows “CH”
setting current and voltage. The flashing means welding parameters to be stored.
・Press selection key ○
12 to return to “ Weld ” from “ Record ” and the corresponding
parameters are recorded in the channel being selected.
● When a self-diagnosable error occurs, ( For troubleshooting: Section 13.1)
・It shows alarm signal number.
○
6
setting
“ voltage ”
“ arc length ”
“ arc
characteristics ”
“ penetration
control ”
function select
● When “voltage”/ “arc length ” function is selected, the setting method of the
corrosponding selection number is decided by P11 of “F. Adj” function menu.
When P11 is 0, it is adjusted by wire feeder potentiometer; when P11 is 1, it can
be changed by Jog-dial ○
7
● When“ arc characteristics ” function is selected, the value can be changed by Jog-
dial ○
7
● When“penetration control ” function is selected, the value can be changed by Jog-
dial ○
7
Note: To change“penetration control ”, welding method ○
14 is to be selected as
“Deepen ”.
○
7
Jog-dial
● When Mode selection key ○
12 is set to“ Weld ”, (please refer to the description in
○
6)
・When key ○
6selects different options, please adjust corrosponding set value
according different items.
・During welding, the contents in ○
8can be adjusted. However, “ initial ” and
“ crater ” current change not be changed.
● When Mode selection key ○
12 is set to “F. Adj”, ( Section 5.4)
・Refer to detailed description.
● When Mode selection key ○
12 is set to “ Call ”,
・select Call channel number. (Only the channel number being recorded in ○
5can
be shown. )
● When Mode selection key ○
12 is set to “ Record ”,
・Record channel number is select.

Names and functions
17
○
8
manual wire
feeding button
● The function is used to feed welding wire into the liner before welding by holding
this key.
・manual wire feeding speed is decided by the welding current.
○
9
switching button
● To switch the setting among“ initial ”, “ Weld ”, “ crater ” current.
・For crater OFF, it can not be switched. Only the setting for “ Weld ” current can be
selected.
○
10
gas check button
● It is to check shield gas and adjust flow rate.
・Normally, the indicator lamp is off. The lamp is on while checking gas.
・To perform the gas check, press this button and then release, then the gas valve of
the wire feeder is turned ON and then turned OFF in 20 seconds.
Press this button once again to terminate the gas check immediately.
○
11
lock button
● During stand-by, long press button for 1 second to lock the panel. Then all buttons
on the panel expect ○
3○ 6○ 8○ 9○ 10 can NOT be operated but the wire feeder
potentiometer can be adjusted.
○
12
mode select
button
● Weld: welding condition setting for ○
2～○ 7,○ 9and ○ 13 ～○
16 ,○
8○ 10 for wire feeding
check, gas check for welding, ○
11 for panel lock
・F. Adj: fine adjustment on F. Adj menu ( Section 5.4).
・Call: To call the welding condition being recorded ( Section 5.4).
・Record: To record the present welding conditions ( Section 5.4).
○
13
welding control
● For welding control method selection, ( Chapter 8 )
・crater OFF: regular welding.
・crater ON: regular welding ～crater welding.
・initial ON: initial welding ～regular welding ～crater welding.
・spot welding: The welding lasts certain seconds according to the spot welding time
being set. The welding stops automatically when the spot welding time is up.
○
14
welding method
● To select the welding method
・Standard: No pulse during welding.
・OP1: Reserve.
・root welding: NO pulse root welding ※1.
・Deepen: NO pulse deep penetration ※1.
○
15
material
● select the material to be welded
・OP1 and OP2 are reserved for special design.
○
16
wire diameter
● select welding wire diameter to be used
・OP1 reserved for special design.
○
17
fuse (8A)
wire feeding motor
● protection on the wire feeding motor
Note: be sure to turn off the power source switch before replacing the fuse.
○
18
power source
switch
● switch the power source ON and OFF
※1【Deepen 】function is an optional software package. The test welding can last for 3 hours after setting P
menu ( Section 5.4). If you desire to continue this function, please contact the Distributor to activate the
function.
Note:
1. The welding material, welding wire diameter being set in (○
15 )～(○
16 )should be in line with the actual operational
conditions.
2．If there is no welding data in welding material, welding wire diameter , it shows “--- ---”, as shown in the picture
below.
- - - - - -
2 5