Panasonic YD-350GL4 User manual

Digital IGBT Controlled
MIG/MAG Arc Welding Power Source
Operating Instructions
Model No.
Before operating this product, please read the instructions carefully and save this manual for future use.
Thank you for your purchase of Panasonic welding power source.
SPEC. No:
TSM50447-04
ＹＤ－３５０ＧＬ４
ＹＤ－５００ＧＬ４
ＹＤ－３５０ＧＬ４ＨＧＮ、ＹＤ－５００ＧＬ４ＨＧＮ

■Caution for your safety
Read and understand this manual before installing,
operating or servicing this product.
The wiring and grounding should be done by
educated and/or skilled person.
This equipment and instructions are for use only by
persons trained and experienced in the safety
operation of welding equipment. Do not allow
untrained persons to install, operate, or maintain this
equipment.
■Cautions about electromagnetic disturbance
●Extra precaution may be required when welding
power source is used in a domestic establishment.
●Before installing welding equipment ,the user shall
make an assessment of potential
Electromagnetic problems in the surrounding area
as below.
a) Other supply cables, control cables, signaling
and telephone cables; above, below and
adjacent to the welding equipment;
b) Radio and television transmitters and receivers;
c) Computer and other control equipment;
d) Safety critical equipment , e.g. guarding of
industrial equipment;
e) The health of the people around , e.g. the use of
the pacemaker and hearing aids;
f) Equipment used for calibration or measurement;
g) The immunity of other equipment in the
environment; the user shall ensure that other
equipment being used in the environment is
compatible ;this may require additional
protection measures;
h) The time of day that welding or other activities
are to be carried out.
●The user shall be observe to reduce emission
disturbance as below.
a) Welding equipment should be connected to
mains supply according to the manufacture’s
recommendations.
b) Welding equipment should be routinely
maintained according to the manufacture’s
recommendations.
c) The welding cables should be kept as short as
possible and should be positioned close
together, running at or close to the floor level.
d) Confirm to connection of all metallic component
in the welding installation and adjacent to it
should be considered for safety.
e) The work-piece should be connected to earth
for electric safety.
f) Selective screening and shielding of other
cables and equipment in the surrounding area
may alleviate problems of interference.
Screening of entire welding installation may be
considered for special applications.
■Exporting the machine into the EU
This product does not meet the requirements specified in
the EC Directives which are the EU safety ordinance.
Please bear in mind that this product may not be brought
as is into the EU. The same restriction also applies to any
country which has singed the EEA accord. Please be
absolutely sure to consult with us before attempting to
relocate or resell this product to or in any EU member
state or any other country which has signed the EEA
accord.

■ 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
CO
2
welding, MAG welding, pulse MAG welding, stainless steel MIG welding and stainless steel pulse MIG
welding.
Note: 【 Deepen 】 function is an optional software package. The test welding for this function can last for 3
hours ( Section 5.4), after setting P menu. If you are willing to continue this function, please contact
Distributor to activate this function.
welding methods
welding
wire material
welding
method
shielding
gas
pulse
ON/OFF
wire
diamete
r
(mm)
extension length (mm)
root
weldin
g
Deepe
n
semi-automati
c
automati
c
welding
carbon steel
CO
2
100%CO
2
DC pulse
OFF
0.8 HND 10 ○ ×
1.0 HND 15 ○ ×
1.2 HND 15, 20 ○ ×
1.4 HND 25 × ×
1.6 HND 30 × ×
MAG Ar+20%CO2
DC pulse
OFF
0.8 HND 10 ○ ×
1.0 HND 15 ○ ×
1.2 HND 15, 20 ○ ●
1.4 HND 25 × ●
1.6 HND 30 × ●
DC pulse
ON
0.8 HND 10 × ×
0.9 HND 15 × ×
1.0 HND 15 × ×
1.2 HND 15, 20 × ×
1.4 HND 25 × ×
1.6 HND 30 × ×
carbon steel
flux core CO
2
100%CO2 DC pulse
OFF
1.2 HND 20 × ×
1.4 HND 25 × ×
1.6 HND 30 × ×
stainless
steel
(SUS308)
MIG Ar+2.5%CO2
DC pulse
OFF
0.8
HND
×
×
×
1.0
HND
×
×
×
DC pulse
ON
0.8
HND
10
×
×
1.0 HND 15 × ×
1.2 HND 15, 20 × ×
1.6 HND 30 × ×
stainless
steel
(SUS430)
MIG Ar+2.5%CO2
DC pulse
ON
1.0 HND 15 × ×
1.2 HND 15, 20 × ×
stainless
steel flux
core
MIG Ar+2.5%CO2
DC pulse
ON 1.2 HND 20 × ×
stai
nless
steel flux
core
CO2 100%CO2 DC pulse
OFF 1.2 HND × × ×
Note: × stands for no data, ○ stands for standard configuration data, ● for the chargeable data.
Note: for machine configuration, please refer to the section 4.1 & 4.2.

Table of Contents
1. About safety ......................................1
1.1 Safety precautions ....................................1
1.2 Safety instructions that must be observe 1
2. Rated Specifications ........................ 4
2.1 Rated specifications for 350GL4 ............4
2.1.1 Duty cycle ...................................................5
2.1.2 Dimensions...................................................5
2.2 Rated specifications for 500GL4... ............6
2.2.1 Duty cycle ...................................................6
2.2.2 Dimensions...................................................6
3. Installation .........................................7
3.1 Transportation ..........................................7
3.2 Installation site ..........................................7
3.3 Power supply equipment .........................7
4. Configuration ....................................8
4.1 what’s needed ..........................................8
4.2 Connecting cable ....................................9
4.2.1 About connecting cable ............................9
4.2.2 Cautions about using connecting cable.....9
5. Names and functions .....................10
5.1 Switches and rear side ...........................10
5.2 Front panel .............................................12
6. Connection ......................................16
6.1 Output side connection .........................16
6.1.1 Connecting cable from base metal ...........16
6.1.2 Connecting torch cable ............................17
6.1.3 Connecting feeder cable ..........................17
6.1.4 Connecting grounding wire .......................18
6.1.5 Connecting input powe r cable ..................18
6.2 Connecting jig(s) ....................................19
6.2.1 Layout of jig terminals ..............................19
6.2.2 Functions of jig terminals ..........................19
7. Preparation and termination
processings........................................20
7.1 Preparation ..............................................20
7.1.1 Use of protective equipment .....................20
7.1.2 Pre-operation check .................................20
7.1.3 Turning on power .....................................20
7.2 Termination processing (steps after
welding operation) ...................................20
7.2.1 Shutting off gas ........................................20
7.2.2 Shutting off power ....................................20
8. Settings ...........................................21
8.1 FUNCTION settings ..............................21
8.1.1 “F. ADJ” .................................................21
8.1.2 “CALL” and “RECORD” .........................25
8.2 CHANGE settings ...............................26
8.4 Welding wire inching .............................27
8.5 Checking shield gas ..............................27
9. Operation ........................................28
9.1 Welding current calibration .................28
9.2 “NO CRATER”.........................................28
9.3 “CRATER” .............................................29
9.4 “INI. &CRATER”......................................30
9.5 “Crater repeat” operation ....................31
9.6 “ARC SPOT” ..........................................32
10. Maintenance and inspection..........33
10.1 Daily check ..........................................33
10.1.1 Welding machine (This product) ..........33
10.1.2 Cables .................................................33
10.1.3 Other devices ......................................34
10.2 Periodic check ....................................35
10.2.1 Check guideline ................................... 35
10.3 Precautions for withstand voltage test and
insulation resistance measurement ......36
10.3.1 Test preparation .................................. 36
10.3.2 After completion of the test ....................36
11. Troubleshooting ............................37
11.1 Error indication ...................................37
11.2 Troubleshooting table ..........................39
12. Parts list .........................................39
12.1 Parts list for 350GL4.............................40
12.2 Parts list for 500GL4.............................40
13.Circuit diagram ..............................48
13.1 Circuit diagram for 350GL4 ................48
13.2 Circuit diagram for 500GL4.................49
14.Appendix ........................................50
14.1 CO2 welding conditions table: Solid wire
(Reference) .............................................50
14.2 MAG welding conditions table: Solid wire
(Reference) .............................................52
14.3 Arc spot welding conditions table
(Reference) .............................................52
14.4 Welding conditions memorandum.....5414.4 Welding conditions memorandum.....53
８．３ Ｔｈｅ ｗｅｌｄｉｎｇ ｍａｃｈｉｎｅ ｆａｃｔｏｒｙ ｄｅｆａｕｌｔｓ
reset .............................................26

1
1.About safety
1.1Safety precautions
Read this manual carefully to use the machine properly.
The cautions mentioned in this manual and on the
product are important to operate the machine properly
and prevent hazardous situation and damage to you and
other personnel.
This document classifies all of these hazardous
conditions into three levels, namely Danger, Warning or
Caution, and indicates these levels by using symbols.
Those Dangers, Warnings, Cautions as well as
Mandatory Actions and Prohibitions mentioned must be
followed without fail. It is also important to ensure that
equipment functions correctly at all times. * The warning
symbols and signal phrases are also used on the warning
labels attached on the machine.
“Serious personal injury” refers to loss of eyesight, burns
(high-temperature and low-temperature burn), electrical
shock, bone fractures and gas poisoning, as well as those
that leave after-effects, which require hospitalization or
necessitate medical treatment for an extended period of
time. “Medium-level and light personal injury” refers to
burns, electrical shock and injuries which do not require
hospitalization or necessitate medical treatment for an
extended period of time. “Property damage” refers to
extensive damage to the surrounding items and
equipment.
1.2Safety instructions that must be observe
Welding power source
（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 instruction and national, state and local
codes and regulations.
（4）Prevent any unauthorized personnel to enter in and
around the welding work area.
（5）Only educated and/or skilled persons who well
understand this welding power source should install,
operate, maintain and repair the unit.
（6）Only educated and/or skilled persons who well
undersand the operating instruction of the unit and
are capable of safe handling should perform
operation of the unit.
Against electric shock
（1）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.
（2）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.
Warning
symbol
Signal
phrase Description Warning symbol
Signal
phrase Description
Danger
A hazardous accident including death
or serious personal injury is imminent, if
directions are not followed carefully.
Mandatory
Action
Action which MUST be
performed without fail,
such as grounding.
Warning
The potential for a hazardous accident
including death or serious personal
injury is high, if directions are not
followed carefully.
Prohibition Action which MUST
NOT be performed.
Caution
The potential for hazardous accident
including medium-level or light personal
injury and/or the potential for property
damage to the equipment are high if,
directions are not followed carefully.
The above warning symbols are commonly used.
WARNINGS
Observe the following instructions to prevent
the hazard.
Observe the following instructions to prevent
the hazard.
About safety

2
（3）Do not use undersized, worn, damaged or bare
wired cables.
（4）Connect cables completely and insulate connection
parts.
（5）Keep all cases, panels and covers securely in place.
（6）Do not handle the welding power source with torn or
wet gloves.
（7）Wear safety harness in case of working above floor
level.
（8）Turn off all equipment when not in use.
（9）Perform periodic checks without fail and repair or
replace any damaged parts before using the power
source.
（10）
In case of AC arc welding in a confined area or
above floor level, check related national, state and
local codes and regulations for any special treatment
and comply with it if any.
Ventilation and protective equipment
（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
（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.
Installing shielding (curtain etc.)
（1）When welding or monitoring welding, wear safety
glasses with sufficient light blocking performance or
use a protective mask designed for welding
operation.
（2）Wear protective glasses to protect your eyes from
spatter or slugs.
（3）When welding or monitoring welding, wear protective
clothes designed for welding operation, such as
leather gloves, leg cover and leather apron, and also
wear long-sleeve shirts.
（4）Install a protective curtain around the welding
manipulator site to prevent the arc flash from
entering the eyes of people in the surrounding area.
Gas cylinder and gas flow regulator
（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
recommended by our company.
（3）Read the instruction manual of the gas regulator
prior to using it, 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.
Oxygen deficit, fume and gas generated
during welding can be hazardous.
Observe the following cautions to prevent
fires explosion or blowout.
CAUTIONS
Arc flash, flying spatter and slugs generated
during welding can damage your eyes, skin
and hearing.
Overturn of gas cylinder and blowout of
gas flow regulator can cause injury.
About safety

About safety
3
（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.
Rotating parts
（1）Keep away from rotating parts such as cooling fans,
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 or repair work, provide fence or the like
around the welding machine so that unauthorized
person can not come close carelessly.
Welding wire
（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）Make sure to replace any damaged liner or cable
with a new one as use of damaged liner/cable may
cause gas leak or insulation deterioration.
Against insulation deterioration
（1）Keep enough distance from welding power source
when performing welding or grinding work so as to
prevent such 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.
Rotating parts can cause injury.
Welding wire, especially wire tip part can
cause injury.
Insulation deterioration can cause fire of
welding power source.

⒉Rated Specifications
2.1.1 Rated specifications for
(Note): For the details, refer to section “Applicable arc characteristics table on the inside front cover.
4
YD-350GL4HGN/YD-500GL4HGN
Item Unit Contents
YD-350GL4HGN YD-500GL4HGN
Control method - digital IGBT control
Rated input·
Number of phases -
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
pulse ON: DC 400
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 pulse OFF: DC 60~500
pulse ON: DC 60-400
Output voltage range
(※Note) V 16~35.5 pulse OFF: 17~39
pulse ON: 17~34
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 - flux core / solid
Applicable welding wire
diameter
mm solid 0.8/1.0/1.2/1.4/1.6
mm flux core carbon steel 1.2/1.4/1.6 flux core stainless steel 1.2/1.6
Welding wire material - carbon steel / carbon steel flux core / stainless steel / stainless steel
flux core
Memory - 100 channels can be called, welding parameters recordable
Sequence - welding / welding — crater / initial — welding — crater / spot
welding
Shielding gas -
CO2 welding CO2: 100 %
MAG welding Ar: 80 %, CO2: 20 %
MIG welding Ar:98%, O2:2%
Gas check time - 60 s ( longest gas check time )
Pre-flow time - 0 s–5.0 s continuous adjustment (0.1s increment)
After-flow time - 0 s–5.0 s continuous adjustment (0.1s increment)
Spot welding time - 0.3 s–10.0 s continuous adjustment (0.1s increment)
Overall dimensions mm 692×380×612(LXWXH) 772×380×612(LXWXH)
Mass kg 68 75
Rated Specifications
380 VAC (Allowable fluctuation range:304 to 437V)380 VAC (Allowable fluctuation range:304V to 437V)

5
2.1.2Duty cycle for
●The rated duty cycle for this product is 60%.
“The duty cycle is 60% at the rated output” means that
for 60 percent of the ten minute period (6 minutes), the
power source can maintain operation with an output of
350A without overheating. The remaining four minutes
must be operated at no-load to allow proper cooling.
●When using the product in combination with other
devices, such as the welding torch, etc., use it at the
lowest rated duty cycle among those devices
Note
Using a product at a duty cycle over the rated duty
cycle may cause the increase of equipment
temperature over the permissible maximum, as a result,
the lamp to indicate the “abnormal rise in temperature”
is turned on.
●IGBT, DCL and some diodes of this unit are protected
with “Thermal protector”. The error “Err 3: Abnormal
rise in temperature” occurs when the temperature of
those units exceeds the allowable temperature.
* When an output other than rated value is used.
2.1.3Dimensions for YD-350GL4
100
50
100 200 300
Applicable range
Duty cycle (%)
Output current (A)
035030
Rated
60%
100% (270A or less)
Allowable
duty cycle (%) =
Rated
output current
Actual
output current
Rated
duty cycle (%)
x
2
For your reference:
Duty cycle: The percentage ratio of loading time to full time. A cycle of the full time shall be 10 minutes.
Rated duty cycle: means the rate of use when loading the rated output current intermittently at the rated input
voltage of the rated frequency. Regarding the engine-driven welding power unit, however, it means when driving it at
the rated number of revolution.
(Unit: mm)
YD-350GL4
H
L
W
机型 W H D
YD-350GL4HG 380 612 692
（单位：mm）
Rated Specifications
N

Rated Specifications
6
2.2.2Duty cycle for YD-500GL4
2.2.3Dimensions for YD-500G
●The rated duty cycle for this product is 60%.
“The duty cycle is 60% at the rated output” means that
for 60 percent of the ten minute period (6 minutes), the
power source can maintain operation with an output of
500A without overheating. The remaining four minutes
must be operated at no-load to allow proper cooling.
●When using the product in combination with other
devices, such as the welding torch, etc., use it at the
lowest rated duty cycle among those devices
Note
Using a product at a duty cycle over the rated duty
cycle may cause the increase of equipment
temperature over the permissible maximum, as a result,
the lamp to indicate the “abnormal rise in temperature”
is turned on.
●IGBT, DCL and some diodes of this unit are protected
with “Thermal protector”. The error “Err 3: Abnormal
rise in temperature” occurs when the temperature of
those units exceeds the allowable temperature.
* When an output other than rated value is used.
100
50
100 200 300
Applicable range
Duty cycle (%)
Output current (A)
035030
Rated
60%
100% (387A or less)
Allowable
duty cycle (%) =
Rated
output current
Actual
output current
Rated
duty cycle (%)
x
2
For your reference:
Duty cycle: The percentage ratio of loading time to full time. A cycle of the full time shall be 10 minutes.
Rated duty cycle: means the rate of use when loading the rated output current intermittently at the rated input
voltage of the rated frequency. Regarding the engine-driven welding power unit, however, it means when driving it at
the rated number of revolution.
L4
H
L
W
机型 W H D
YD-500GL4HG 380 612 772
（单位：mm）
N

Installation
7
3.Installation
3.1Transportation
3.2Installation site
3.3Power supply equipment
When hanging this product for transportation, hang it at two eyebolts.
●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.
CAUTION
This product is designed for indoor use only.
Do not install it in any places subject to rain or water spray.
In case that the product gets wet with rain or water spray:
Make sure that persons who well understand this product should check the inside of the product and wipe up water
if any. Such water entered inside the product may cause the product to malfunction.
●Indoors, not subject to direct sunlight or rain, with less
moisture and dust.
●Ambient temperature: -10 ℃to 40 ℃
●Maintain an appropriate distance of 20 cm or more from
any wall or other devices.
●Maintain an appropriate distance of 30 cm or more
between power sources installed side-by-side.
(Install this product in the horizontal position.)
●Places where the welding arc area is not subject to
wind. (Protect the area from wind by a partition, etc.)
●Places where the product is not likely to take in metallic
foreign substances
Note
When the product, which is installed on the floor, is too low
to operate, customers are required to prepare a table to
mount it. (And, in that case, provide such a table with a flange,
etc. so that the product does not slip down from the table.)
CAUTION
Observe the following to prevent burnout, destruction of parts and unstable
arc.
Input protective devices
(Breaker, fuse etc.)
Type and capacity to be applied should conform to all national
and local codes.
Cable cross section area
for input cable and ground wire
Type and size of cables to be applied should conform to all
national and local codes.
Input voltage 380 VAC(YD-350GL4and YD-500GL4)

8
4.Configuration
4.1what’s needed
●Welding power source: YD-350GM3 (this product)
●Equipment available as peripher (separate sales)
NO. item remarks
①
welding
power
source
YD-350GL4HGN YD-500GL4HGN
② wire
feeder
③ welding
gun
④ gas
regulator
YX-25CD1HAL
○
11
wire
feeder
trolley
TSMYU050(optional part)
NO. item remarks
⑤
base metal
welding
cable
35 mm2 or
higher
70 mm2 or
higher
⑥
grounding
cable
6 mm2 or
higher
10 mm2 or
higher
⑦
distribution
box 3-phase AC 380 V
⑧
power
source input
cable
6 mm2 or
higher
10 mm2 or
higher
⑨
grounding
cable
6 mm2 or
higher
10 mm2 or
higher
⑩
shielding
gas Same as the selected gas
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.
Reminder
○
11
section 5.1
Configuration
YT-35CS4HPF YT-50CS4HPF
YW-50DG1HLH
YW-35DG1HLH

Configuration
9
4.2Connecting cable
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.
Connecting cable models
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.
• Relationship among extending length, cross section,
allowable current and duty cycle.
Arrange the base metal cable corresponding to thee
applied connecting cable.
• Do not extend the cable unnecessarily. (A shorter cable
is preferable)
• Do not use leave the connecting cable slackened.
Never coil the connecting cable when welding, or the
welding arc may become unstable.
• Connect the base metal voltage detection wire (-) to the
base metal voltage detection terminal (-).
• Do not use the connecting cable as a junction cable.
CAUTION
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.
Power cable
Connecting cable
Waterproof cover
Model No. Cross
section Length Allowable
Current/Duty cycle
YV-610GR3A
2
10 m
350 A or less/60%V-615GR3A15 m620GR3A 20 m-305G
38 mm
2
5 m3A 10 m-315GR3A 15 m m
YD-350GL4HGN
YD-500GL4HGN
35
70
１３．２ｍ
１８．２ｍ

5.Names and functions
5.1Switches and rear side
CAUTION
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.
10
● The connection and disconnection operation of the
power source
・Turn the power source switch knob clockwise to connect
power source. About one 1 second later, LED display
shows software version information.
・The software version is shown for about 4 seconds. Then
AC contactor is switched on and cooling fan starts to
rotate.
※1 for details of wire feeder（ Section 4.1), please refer to the operation manual before use.
①
(-) base metal connection
● Connect the base metal cable to the “(-) base metal terminal” with the attached
②
(＋) welding gun cable connection
● Connect the power cable drawn from the wire feeder to the (+) torch terminal
bolt.
③
control cable socket ( 16 cored )
● Please firmly connect the socket with the wire feeder ※1 16 cored cable.
Power
source
switch
③
②
①
②
①
with the attached M10
M10 bolt.
Names and functions

④
power source input terminal (It is attached with the protective cover )
●After connecting the power source input cables, please be sure to well install power source input protective cover.
⑤
external control wire inlet ( external terminal )
●When the wire connection of external terminals, please guide the wires through rubber cover and fasten all wires.
⑥
grounding terminal (Ｍ8 bolt )● please use reliable grounding method.
⑦
cooling fan air passage inlet
● The fan intakes cool air from this inlet.
● Do not leave any obstacles near this inlet
● The operation of the cooling fan.
When the power is turned on, the fan rotates. If the no-welding operation lasts more than seven minutes,
electricity until the welding operation starts for the next time. (After TS-ON
pressing the switch again, the fan continues to rotate).
⑧
The gas regulator is equipped with the socket and fuse
●The output of gas regulator socket is AC V. Please do NOT use it on any other purpose.
● fuse capacity is 3A.
● please use the gas regulator provided by the Company.
After turning on the power source switch, gas regulator socket outputs voltage immediately.
to save
it automatically stops
11
④
⑤
⑤
⑥
⑦
⑧
Names and functions
100

12
5.2Front panel
○
1
○
2
○
3
○
4
○
5
○
6
○
7
○
8
○
9
○
10
○
11
○
12
○
13
○
14
○
15
○
16
○
17
○
19
○
18
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○
5
shows 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, ( Fo
r troubleshooting:
Section 13.1)
・ it shows Err( voltage display LED○
3
shows 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.
Names and functions

13
NO. name description
○
4 Jog-dial
● When Mode selection key ○
12
is set to “ Weld ”, (refer to description in
○
3
)・ when key ○
3
selects 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, ○6 data 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 ○
7
to 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 troubleshoot
ing:
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 ”.
Names and functions

14
NO. name description
○
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
, ○
9
and ○
13
～○
17
, ○
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
・ pulse OFF: No pulse during welding.
・ pulse ON: pulse is turned on during welding.
・ 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.
○
7
Jog-dial
● When Mode selection key ○
12
is set to“ Weld ”, (please refer to the
description in ○6)
・ When key ○6 selects different options, please adjust corrosponding set
value according different items.
・ During welding, the contents in ○
8
can 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 ○
5
can be shown. )
●When Mode selection key ○
12
is set to “ Record ”,
・ Record channel number is select.
Names and functions

Names and functions
15
○
18
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.
○
19
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 and welding gas being set in ( ○15)～
( ○17)should be in line with the actual operational conditions.
2． If there is no welding data in welding material, welding wire diameter and welding gas, it
shows “--- ---”, as shown in the picture below.
- - - - - -
2 5
NO. name description
○
17 gas
● welding method select. please prepare gas according to the requirement
listed below: ・CO2: CO2 gas 100%
・MAG: Ar gas 80%＋CO2 gas 20%
・MIG: Ar gas 98%＋O2 gas 2% or Ar gas 97.5%＋CO2 gas 2.5%
・OP1, OP2, OP3 and OP4 are reserved for special design.
○
16
wire diameter
● select welding wire diameter to be used
・OP1 reserved for special design.

16
6.Connection
6.1Output side connection
Open the terminal cover at the bottom of the front panel to
access the terminals and connector.
(Loosen the bolt to open the cover.)
Note
After completion of connecting base metal cable and
torch cable, insulate the cable connections with insulation
tape.
6.1.1Connecting cable from base metal
Connect cable from the base metal to the base metal ter-
minal (-) with the attached M8 bolt.
After connection, insulate the cable connections with
insulation tape.
●About base metal cable (Customer preparation)
• Use a cable of 35 mm
2
(70 mm2for 500GL 4) or
more for welding or a specified tough rubber sheath
cable (excluding vyniletype)
• Make sure to use one whose cross section and length
conform to the applied connecting cable.
(See section “About connecting cable”.)
• Make sure to attach the proper clamp terminal.
Important
●The installation shall be done by qualified installation personnel and should conform to all national and
local codes.
●Type and capacity of protection devices, such as breaker and fuse, to be applied should conform to all
national and local codes.
●Type and size of cables to be applied should conform to all national and local codes.
WARNING
Touching current carrying parts may cause a fatal accident like an electric
shock, burn injury and so on. To prevent physical accidents like an electric
shock, burn injury and so on, make sure to observe the followings.
●Make sure to turn off the switches of this product and the distribution box before starting connections.
●Do not perform any connection work with wet hands.
●Make sure to insulate all bare current-carrying parts like joints and so on by tape, etc.
●Do not apply undue force to the cables and wires.
●Avoid contact with the welding arc part at wiring.
●For safety reasons, provide base material with grounding work. Wiring and grounding work should be
done by qualified electricians.
CAUTION
Observe the followings to prevent a fire caused by overheat of cables.
●Use cables with specified size or larger.
●Fasten all cable connections securely.
Connect base metal cable
Base metal
terminal (-)
Connection