ESAB AristoPendant U8 User manual
- Category
- Welding System
- Type
- User manual
This manual is also suitable for
GB
Valid for program version 1.300459 310 174 051125
AristoPendant U8
Instruction manual
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TOCe
Rights reserved to alter specifications without notice.
1 INTRODUCTION 6...................................................
1.1 Equipment 6................................................................
1.2 Do this first 6...............................................................
1.3 Display 8...................................................................
1.3.1 Symbols in the display 8.................................................
1.4 Keys 9.....................................................................
1.5 About settings 9.............................................................
1.5.1 Setting numverical values 9..............................................
1.5.2 Setting fixed options 10...................................................
1.5.3 ON/OFF or YES/ NO settings 10...........................................
1.6 ENTER and QUIT 10.........................................................
2 MENUS 11...........................................................
2.1 Main menu 11...............................................................
2.1.1 Auxiliary functions menu 11...............................................
2.1.2 Weld data setting menu 12................................................
2.1.3 Measure image 12.......................................................
2.1.4 Memory functions menu 13...............................................
2.1.5 Fast mode menu 13......................................................
2.2 Menu structure 14............................................................
3 MIG/MAG WELDING 15................................................
3.1 Settings in the weld data setting menu 15........................................
3.1.1 MIG/MAG welding with dip/spray 15........................................
3.1.2 MIG/MAG welding with pulsing 16.........................................
3.2 Function explanations for settings 17............................................
3.2.1 Voltage 17..............................................................
3.2.2 Wire feed speed 17......................................................
3.2.3 Inductance 17...........................................................
3.2.4 Regulator type 17........................................................
3.2.5 Pulse current 17.........................................................
3.2.6 Pulse time 17...........................................................
3.2.7 Pulse frequency 17......................................................
3.2.8 Background current 18...................................................
3.2.9 Slope 18...............................................................
3.2.10 Ka 18..................................................................
3.2.11 Ki 18...................................................................
3.2.12 Synergy 18.............................................................
3.2.13 Gas pre--flow 18.........................................................
3.2.14 Creep start 19...........................................................
3.2.15 Hot Start 19.............................................................
3.2.16 Crater filling 19..........................................................
3.2.17 Pinch--off pulse 20.......................................................
3.2.18 Burnback time 20........................................................
3.2.19 Gas post--flow 20........................................................
3.2.20 Limits 20...............................................................
3.2.21 Spot welding 20.........................................................
4 MMA WELDING 21....................................................
4.1 Settings in the weld data setting menu 21........................................
4.2 Function explanations for settings 21............................................
4.2.1 Current 21..............................................................
4.2.2 Arc force 21.............................................................
4.2.3 Min. current factor 21....................................................
4.2.4 Synergy 21.............................................................
4.2.5 Limits 21...............................................................
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5 TIG WELDING 22.....................................................
5.1 Settings in the weld data setting menu 22........................................
5.1.1 TIG welding without pulsing 22............................................
5.1.2 TIG welding with pulsing 22...............................................
5.2 Function explanations for settings 23............................................
5.2.1 HF 23..................................................................
5.2.2 LiftArc 23...............................................................
5.2.3 2--stroke 23.............................................................
5.2.4 4--stroke 24.............................................................
5.2.5 Current 24..............................................................
5.2.6 Pulse current 24.........................................................
5.2.7 Background current 24...................................................
5.2.8 Pulse time 24...........................................................
5.2.9 Background time 25......................................................
5.2.10 Slope up 25.............................................................
5.2.11 Slope down 25..........................................................
5.2.12 Gas pre--flow 25.........................................................
5.2.13 Gas post--flow 25........................................................
5.2.14 Limits 25...............................................................
5.3 Other function explanations 26.................................................
5.3.1 Gas purge 26...........................................................
6 CARBON, ARC AIR 26................................................
6.1 Settings in the weld data setting menu 26........................................
6.2 Function explanations 26......................................................
6.2.1 Voltage 26..............................................................
6.2.2 Inductance 26...........................................................
6.2.3 Regulator type 26........................................................
7 Aristo SuperPulse 27.................................................
7.1 Wire and gas combinations 27.................................................
7.2 Different types of pulsing 27...................................................
7.3 Settings in the weld data setting menu 28........................................
7.4 Function explanations for settings 28............................................
7.4.1 Phase 28...............................................................
7.5 Wire feed unit 28.............................................................
8 MEMORY MANAGEMENT 30...........................................
8.1 How the controller works 30...................................................
8.2 Store 31....................................................................
8.3 Delete 32...................................................................
8.4 Recall 33....................................................................
8.5 Copy 34.....................................................................
9 AUXILIARY FUNCTIONS 35............................................
10 FILEMANAGER 35....................................................
10.1 Inserting a compact flash card / PC--card 36.....................................
10.2 Example: Saving welding data settings in the internal memory 36...................
10.3 Example: Creating a new folder on a memory card 37.............................
10.4 Deleting a file or folder 37.....................................................
10.5 Changing the name of a file/folder 38...........................................
10.6 Copying files 38..............................................................
10.7 Recalling welding data 38.....................................................
10.8 Quality data files content 39...................................................
10.8.1 About the welding equipment 40...........................................
10.8.2 About the welds 40......................................................
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11 WELD DATA SETS 41.................................................
11.1 Example: Saving welding data on a memory card 41..............................
11.2 Recalling welding data from a memory card 41...................................
11.3 Deleting welding data from a memory card 41....................................
12 CONFIGURATION MENU 42...........................................
12.1 Code lock 42................................................................
12.1.1 Lock code mode 42......................................................
12.1.2 Set / change lock code 44................................................
12.2 Remote control configuration 44................................................
12.2.2 Configuring a digital remote control 44......................................
12.2.3 Configuring an analogue remote control 45..................................
12.3 MIG/MAG defaults 46.........................................................
12.3.1 Gun trigger mode (2--stroke / 4--stroke) 46..................................
12.3.2 Soft keys setup 47.......................................................
12.3.3 Voltage measurement for dip 49...........................................
12.3.4 4--stroke configuration 49.................................................
12.4 MMA defaults 50.............................................................
12.4.1 Hot start amplitude 50....................................................
12.4.2 Hot start duration 50.....................................................
12.4.3 Droplet welding 50.......................................................
12.5 General defaults 51...........................................................
12.5.1 Fast mode soft keys 51...................................................
12.5.2 Double start sources 51..................................................
12.5.3 Panel remote enable 51..................................................
12.5.4 Auto save mode 52......................................................
12.5.5 T rigger weld data switch 52...............................................
12.5.6 Quality data logging 53...................................................
12.6 Multiple wire feeders 54.......................................................
12.6.1 Weld data 55............................................................
12.7 Unit of length 55.............................................................
13 QUALITY FUNCTIONS 55..............................................
13.1 Saving quality data on a compact flash card 56...................................
14 PRODUCTION STATISTICS 57.........................................
15 ERROR L OG 58.......................................................
15.1 Deleting error messages 58....................................................
15.2 Reviewing error summary 58...................................................
15.3 Error code list 59.............................................................
15.4 Error code descriptions 60.....................................................
16 USER--DEFINED SYNERGIC DATA 63...................................
16.1 Specify voltage/wire co--ordinates 63............................................
16.1.1 Dip/spray 63............................................................
16.1.2 Pulsing 64..............................................................
16.2 Specifying the valid wire/gas combination 64.....................................
16.3 Creating user--defined wire/gas options 65.......................................
16.4 Deleting a user--defined synergic line 66.........................................
17 L IMIT EDITOR 66.....................................................
18 OTHER INFORMATION 67.............................................
18.1 ESAB Logic Pump (Water lock) 67..............................................
WIRE AND GAS COMBINATIONS 68......................................
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Rights reserved to alter specifications without notice.
ORDERING NUMBER 70.................................................
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1 INTRODUCTION
In order to get the maximum benefit from your welding equipment, we recommend
that you r ead this instruction m anual.
For general information about operation, see the power source’s instruction manual.
The text shown in the display is available in the following languages:
English, Swedish, Finnish, Norwegian, Danish, German, French, Italian, Dutch,
Spanish, Portuguese, Hungarian, Polish, US English and Czech.
1.1 Equipment
The AristoPendant U8 is supplied with a holder, 3 spacer screws and an English
instruction m anual.
The instruction manuals and the spare parts list are available in other languages on
the Internet at www.esab.com
Under ”Products” and ”Welding & cutting equipment”, you will find a link to the page
where you can both search for and download instructions and spare parts lists.
1.2 Do this first
This menu appears in the display when you start the machine for the first time.
When delivered, the controller is set to English. To select your language, do as
follows:
Press to bring up the main menu.
ESAB AristoMig
Using the arrow
keys, move the
cursor to the line for
AUXILIARY
FUNCTIONS
Press ENTER
PROCESS: MIG/MAG
METHOD: DIP / SPRAY
WIRE TYPE: Fe
SHIELDING GAS: Ar+8%CO2
WIRE DIMENSION: 1.2 mm
AUXILIARY FUNCTIONS
"
SET MEASURE MEMORY
FAST
MODE
ENTER
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AUXILIARY FUNCTIONS
Move the cursor to the line
for CONFIGURATION
Press ENTER
FILEMANAGER
WELD DATA SETS
CONFIGURATION
QUALITY FUNCTIONS
PRODUCTION STATISTICS
ERROR LOG
USER DEFINED SYNERGIC DATA
LIMIT EDITOR
QUIT ENTER
AUXILIARY FUNCTIONS -- CONFIGURATION
Press ENTER t o call up a
list of the languages
available in the controller .
LANGUAGE: ENGLISH
CODE LOCK
REMOTE CONTROLS
MIG/MAG DEFAULTS
MMA DEFAULTS
TIG DEFAULTS
GENERAL DEFAULTS
MULTIPLE WIRE FEEDERS
QUIT ENTER
Move the cursor to the line for your language and press ENTER. ENGLISH
SVENSKA
SUOMI
DANSK
DEUTSCH
FRANCAIS
ITALIANO ↓
GB
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1.3 Display
ESAB AristoMig
PROCESS: MIG/MAG
METHOD: DIP / SPRAY
WIRE TYPE: Fe
SHIELDING GAS: CO2
WIRE DIMENSION: 1.2 MM
AUXILIARY FUNCTIONS
SET MEASURE MEMORY
FAST
MODE
ENTER
The cursor
The cursor in the controller appears a s a shaded field around the text, which has the
effect of turning the selected text white. T he cursor appears in bold text in the
instruction m anual.
Text boxes
At the bottom of the display there are five boxes containing text that explains the
current functions of the five keys in the line directly below them.
Saver mode
To extend the life of the backlit display, it is switched off after three minutes if there is
no activity.
1.3.1 Symbo ls in th e disp lay
A The selected weld data set
B Recalled memory position number
C More information is available on the next
page
D Select the plus/minus buttons marked
with * to increase or decrease the
parameter value
E Select the plus/minus buttons marked
with # to increase or decrease the
parameter value
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1.4 Keys
You can use the arrow keys to move the cursor to different lines in the display.
The menu key will always r eturn you to the main menu.
The plus/minus keys are used to increase (+) or decrease (--) the value of a
setting.
The two plus/minus keys are each m arked with their own symbol. Most settings can
be defined using either the plus or minus key, but certain settings must be defined
using a key marked or (the symbols appear in the display).
Pressing a key briefly produces an increase/decrease in small steps. If you hold a
key down for longer, the size of the steps increases.
Soft keys
The five keys in a row under the display have a
variety of functions. These are the ”soft keys”, i.e.
they can have different functions depending on
which menu you are using. T he current functions
of these keys are shown by the text in the bottom
line of the display.
When a function is active, this is indicated by a
white dot alongside the text .
1.5 About settings
There are three main types of settings:
S Settings with numerical values
S Settings with fixed options
S Settings of the type ON/OFF or YES/NO
1.5.1 Setting numverical values
When setting a numerical value, you use either the plus or minus keys to increase or
decrease a given value. Some values can also be modified by means of the remote
control.
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1.5.2 Setting fixed options
Certain settings are defined by selecting an option from a list.
The list might look like this:
MIG/MAG
MMA
TIG
CARBON, ArcAir
MIG SUPERPULSE
Here the cursor is on the line for MIG/MAG. If you press the ENTER key now, you
will select the M IG/MAG option.
However, if you want to select another option you move the cursor to the line in
question by moving up or down using the arrow keys.
You then press the ENTER key.
If you want to exit the list without making a selection, press the QUIT key.
Some settings have so m any options that they cannot all be displayed in the list at
the same time. An arrow at the top or bottom of a list indicates that more options will
become visible if you scroll up or down using the arrow keys.
1.5.3 ON/OFF or YES/NO settings
For some functions you can set the values ON or OFF or YES or NO. T he synergic
function for MIG/MAG welding and MMA welding is one example of such a function.
The ON/OFF or YES/NO settings can be defined in one of two ways:
You can select ON or OFF or YES or NO from a list of options as described above.
You can also use the plus/minus keys to define ON/OFF or YES/NO (applies to
certain functions).
S + (plus) = ON or YES
S --(minus)=OFForNO
1.6 ENTER and QUIT
The two ”soft” keys on the far right are primarily used for ENTER and QUIT but are
sometimes used for other functions.
S By pressing ENTER you confirm the selected option in a menu or list.
S By pressing QUIT you return to the previous menu or display.
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2MENUS
The controller uses a number of different menus. These are the main menu, auxiliary
functions menu, weld data setting menu, measure image, memory functions menu
and fast mode menu. During start--up, a start --up screen also appears containing
information about which program version is being used.
2.1 Main menu
In the MAIN MENU you can
c
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e
w
e
l
d
p
r
o
c
e
s
s
w
e
l
d
ESAB AristoMig
change weld process, weld
method, wire type, etc.
From this menu you can
then access all other
submenus.
PROCESS: MIG/MAG
METHOD: DIP / SPRAY
WIRE TYPE: Fe
SHIELDING GAS: Ar+8%CO2
WIRE DIAMETER: 1.2 mm
AUXILIARY FUNCTIONS
SET MEASURE MEMORY
FAST
MODE
ENTER
2.1.1 Auxiliary fun c tio n s menu
In the AUXILIARY
F
U
N
C
T
I
O
N
S
AUXILIARY FUNCTIONS
FUNCTIONS
MENU you can view the
memory card functions. You
can also switch to the
configuration menu, view
quality functions, production
statistics, the error log, etc.
FILEMANAGER
WELD DATA SETS
CONFIGURATION
QUALITY FUNCTIONS
PRODUCTION STATISTICS
ERROR LOG
USER DEFINED SYNERGIC DATA
LIMIT EDITOR
QUIT ENTER
2.1.1.1 Configuration menu
In the CONFIGURATION
M
E
N
U
y
o
u
c
a
n
s
w
i
t
c
h
AUXILIARY FUNCTIONS -- CONFIGURATION
MENU you can switch
language, change other
basic settings, measure-
ment unit, etc.
LANGUAGE: ENGLISH
CODE LOCK
REMOTE CONTROLS
MIG/MAG DEFAULTS
MMA DEFAULTS
TIG DEFAULTS
GENERAL SETTINGS
MULTIPLE WIRE FEEDERS
QUIT ENTER
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2.1.2 Weld data setting menu
In the WELD DATA
S
E
T
T
I
N
G
M
E
N
U
y
o
u
c
a
n
WELD DATA SETTING
SETTING MENU you can
change various weld
parameters. The menu’ s
appearance differs,
depending on which weld
process you have selected.
In this example it is
MIG/MAG welding with
dip/spray.
VOLTAGE: # 26.8 (+0.0) V
WIRE SPEED: * 6.0 m/min
INDUCTANCE: 80 %
SYNERGIC MODE PÅ
START DATA...
STOP DATA...
LIMITS
CRATR
FILL
HOT
START
4--
STROKE
QUIT
2.1.3 Measure image
In the MEASURE IMAGE
y
o
u
c
a
n
s
e
e
t
h
e
m
e
a
s
u
r
e
d
DIP/SPRAY. Fe, CO2, 1.2 mm
you can see the measured
values of various weld
parameters during welding.
The measured values
remain in the display even
after welding has been
completed.
You can move to other
menus without losing the
measured values.
# 0.0 Volt
0Amp
* 6.0 m/min
↓
CRATER
FILL
HOT
START
4--
STROKE
REM
2ND
FUNCT
The arrow in the bottom right--hand corner of the display indicates that there is more
information available.
In the measure image you can change the value of certain parameters. Which
parameters these are depends on which weld process has been set. The parameter
values that can be adjusted are always marked with # or *.
When values are changed while no welding is in progress, the measured values will
change to zero to avoid misunderstandings regarding which settings correspond to
the measure result.
TIP!
In pulsing you can select whether the voltage value is displayed as an average value
or peak value. This setting can be defined under MIG/MAG basic settings, see
chapter 12.3.
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2.1.4 Memory functions menu
In the MEMORY
F
U
N
C
T
I
O
N
S
M
E
N
U
y
o
u
MEMORY FUNCTIONS -- STORED DATA SETS
FUNCTIONS MENU you
can store, recall and delete
various items of preset weld
data. Weld data settings
canbestoredin255
different memory positions.
1251112
STORE QUIT
2.1.5 Fast mode menu
In the FAST MODE
M
E
N
U
y
o
u
c
a
n
l
i
n
k
s
o
f
t
DIP/SPRAY. Fe, CO2, 1.2 mm
MENU you can link soft
buttons to weld data
memory positions. This
setting is defined under
general settings.
# 0.0 Volt
0Amp
* 6.0 m/min
↓
WELD
DATA 1
WELD
DATA 2
WELD
DATA 3
WELD
DATA 4
2ND
FUNCT
For more information about setting this menu, see chapter 12.5.1 ”Fast mode, soft
keys”.
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2.2 Menu structure
AUXILIAR Y FUNCTIONS SET MEASURE MEMORY FAST MODE
STOP DATA COPY
START DATA RECALL
DELETE
STORE
*) This is the start image (measure image) that is shown when you switch on the machine.
The sample image above is for MIG/MAG --welding with synergic mode.
AUXILIAR Y FUNC-
TIONS
auxiliary functions
menu
S see page 35
SET weld data setting menu S for MIG/MAG welding, see page 15
S for MMA welding, see page 21
S for TIG welding, see page 22
S for carbon, arc air, see page 26
S for MIG Superpulse, see page 28
MEASURE measure image S see page 12
MEMORY Memory management
menu
S ses page 30
FAST MODE Fast mode menu S see page 51
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3 MIG/MAG WELDING
Main menu ----> Process
The arc in MIG/MAG welding melts a filler wire (the electr o de) that is continuously
fed into the weld, with the molten zone being protected by a shielding gas.
Pulsing is used to affect the transfer of the droplets from the arc so that it is stable
and does not produce spray, even with low weld data.
The table on page 68 shows the wire diameters that can be selected for MIG/MAG
welding with DIP/SPRAY.
The table on page 69 shows the wire diameters that can be selected for MIG/MAG
welding with PULSE.
3.1 Settings in the weld data setting menu
3.1.1 MIG/MAG welding with dip/spray
Settings Setting range In steps
of:
Values
after reset
Synergic
depend -
ent
Adjust--
able in
synergic
Voltage 8--60 0.25 (dis-
played to
one deci-
mal place)
synergic
deviation
¦ 0
x x
Wire speed ** 0.8 -- 25.0 m/min 0.1 m/min 5m/min x
Inductance 0 -- 100% 1 80% x x
Control type 1--12 1 4 x
Synergic mode* OFF or ON -- ON * -- --
Gas pre-- flow 0.1 -- 25 s 0.1 s 0.1 s x
Creep start NO or YES -- NO x
Hot start NO or YES -- NO x
Hot start time 0--10s 0.1 s 1.5 s x
Hot start wire speed Complete wire feed
range
0.1 m/min 2m/min x
Hot start voltage Complete voltage
range
0.25 V 4.5 V x
Crater filling NO or YES -- NO x
Crater fill time 0--10s 0.1 s 1.5 s x
Final crater filling wire
speed
1.5 m/min to current
wire feed speed
0.1 m/min 3m/min x
Final crater filling
voltage
8 V to actual voltage 0.25 V 18 V x
Pinch off pulse 10 -- 120% 1 60% x
Burn back time 0--1s 0.01 s 0.12 s x
Gas post--flow 0.1 -- 25 s 0.1 s 0.1 s x
Limits 1--50 -- -- -- --
Spot welding OFF or ON -- OFF x
Spot welding time 0--25s 0,1 s 0,5 s x
*) Default synergic line: solid wire (Fe), shielding gas CO
2
with wire 1.2 mm.
**)The setting range is dependent on the wire feed unit used.
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3.1.2 MIG/MAG welding with pulsing
Settings Setting range In steps
of:
Values
after reset
Synergic
depend -
ent
Adjust--
able in
synergic
Voltage 10 -- 50 0.25 (dis-
played to
one deci-
mal place)
synergic
deviation
¦ 0
x x
Wire speed ** 0.8 -- 25.0 m/min 0.1 m/min 5m/min x
Pulse current 100 -- 600 A 4A 476 A x
Pulse time 1.7 – 25.5 ms 0.1 ms 2.2 ms x
Pulse frequency 36 -- 312 Hz 2Hz 96 Hz x
Background current *** 4 -- 300 A 1A 52 A x
Slope 1--9 1 9 x
Ka 0 -- 100% 1 13% x
Ki 0 -- 100% 1 0% x
Synergic mode* OFF or ON -- ON * -- --
Gas pre-- flow 0.1 -- 25 s 0.1 s 0.1 s x
Creep start NO or YES -- NO x
Hot start NO or YES -- NO x
Hot start time 0--10s 0.1 s 1.5 s x
Hot start wire speed Complete wire feed
range
0.1 m/min 2m/min x
Hot start voltage Complete voltage
range
0.25 V 4.5 V x
Crater filling NO, NON--PULSED or
PULSED
-- NO x
Crater fill time 0--10s 0.1 s 1.5 s x
Final crater filling wire
speed
1.5 m/min to current
wire feed speed
0.1 m/min 3m/min x
Final crater filling
voltage
8 V to actual voltage 0.25 V 18 V x
Final crater filling pulse
current
100 A to actual pulse
current
4A 464 A x
Final crater filling
background current
12 A to actual
background current
4A 36 A x
Final crater filling
frequency
20 Hz to actual
freauency
2Hz 62 Hz x
Burn back time 0--1s 0.01 s 0.13 s x
Gas post--flow 0.1 -- 25 s 0.1 s 0.1 s x
Limits 1--50 -- -- -- --
Spot welding OFF or ON -- OFF x
Spot welding time 0--25s 0,1 s 0,5 s x
*) Default synergic line: solid wire (Fe), shielding gas CO
2
with wire 1.2 mm.
**)The setting range is dependent on the wire feed unit used.
***) Minimal backgound current depending on which type of machine is used.
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3.2 Function explanations for settings
3.2.1 Voltage
Higher voltage increases the arc length and produces a hotter, wider weld pool.
The voltage setting differs between synergy and non synergy modes. In synergy
mode the voltage is set as a positive or negative offset from the synergic line of the
voltage. In non synergy mode the voltage value is set as an absolute value.
The voltage is set in e ither the measure image-- , the weld data setting menu, or the
fast mode menu . When the remote control unit is used the setting can be m ade from
this.
3.2.2 Wire feed speed
This sets the required feed speed of the filler wire in m/minute.
The wire feed speed is set in either the measure image, the weld data setting menu,
or the fast mode menu. When the remote control unit is used the setting can be
made from this.
3.2.3 Inductance
Higher inductance results in a wider weld pool and less spatter. Lower inductance
produces a harsher sound but a stable, concentrated arc.
Only applies for MIG/MAG welding with dip/spray.
3.2.4 Regulator typ e
Affects the short circuit process and heat in the weld.
This setting should not be changed.
3.2.5 Pulse current
The higher of the two current values in the event of pulsed current.
Only applies for MIG/MAG welding with pulse.
3.2.6 Pulse time
The time the pulse current is on during a pulse period.
Only applies for MIG/MAG welding with pulse.
3.2.7 Pulse frequency
Time for background current, which, along with the time for pulse current, gives the
pulse period.
Only applies for MIG/MAG welding with pulse.
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3.2.8 Background current
The lower of the two current values in the event of pulsed current.
Only applies for MIG/MAG welding with pulse.
Current
Pulse current
Background current Pulse
time
Pulse period time
Time
MIG/MAG welding with pulsing.
3.2.9 Slope
Slope means that the pulse current rises/falls slowly to the set value. The slope
parameter can be set in nine steps, with each step corresponding to 100 µs.
Slope is significant with r espect to sound. A steep slope generates a higher, sharper
sound. A slope that is too gentle can in the worst case, affect the pulse’s capacity to
cut off the droplet.
Only applies for MIG/MAG welding with pulse.
3.2.10 Ka
Ka is the proportional element and corresponds to the regulator’s amplification. A
low value means that the voltage is not maintained at a constant level as precisely.
Only applies for MIG/MAG welding with pulse.
3.2.11 Ki
Ki is the integrating element that attempts in the longer term to eliminate an error.
Here too, a low value will produce a weaker regulatory effect.
Only applies for MIG/MAG welding with pulse.
3.2.12 Synergy
Each combination of wire type, wire diameter and gas mixture r equires a unique
relationship between wire feed speed and voltage (arc length) to obtain a stable
functioning arc. The voltage (arc length) automatically conforms in accordance with
the pre--programmed synergic line you have selected, which m akes it much easier to
find the correct welding parameters. The relationship between the wire feed speed
and the other parameters is called the synergic line.
It is also possible to order other packages of synergy lines, but these must be
installed by an authorised ESAB service engineer.
3.2.13 Gas pre--flow
Gas pre--flow controls the time during which shielding gas flows before the arc is
struck.
GB
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3.2.14 Creep start
Creep starting feeds out the wire at 50% of the set speed until it makes electrical
contact with the workpiece. With a hot start it is 50% of the hot start time.
3.2.15 Hot Start
Hot start increases the wire feed speed and voltage for an adjustable time at the
start of welding, thus reducing the risk of poor fusion at the beginning of the joint.
Hot start wire speed
It is possible to increase the wire feed speed during a specific period compared to
the present wire feed speed to provide more energy during the weld start and ensure
penetration. T he speed is set relative to the ordinary wire feed speed. The time
starts when the arc is ignited and the length is the set hot start time. Synergy gives
an increase in the wire speed by 2 m/min.
Hot start voltage
The voltage increases by 2 volts in addition to the contribution from the synergy line
slope and the extra 2 m/min in wire feed speed. In non synergy mode, the voltage in
question will be the one set and it is not synergy dependent.
Note!: It is possible to set negative values for the hot start wire feed and hot start
voltage. T his can be used with high weld data to give a smooth weld start by initially
”stepping up” the weld data.
-- Hot start is enabled in the measure image and the settings are defined in the
settings menu.
3.2.16 Crater filling
Crater filling makes a controlled reduction in the heat and size of the weld pool
possible when completing the weld. This makes it easier to avoid pores, thermal
cracking and crater formation in the weld joint.
In pulse welding mode it is possible to choose between pulsed and non pulsed crater
filling. Non pulsed crater filling is faster to do. Pulsed crater filling takes a little longer,
yet gives spatter free crater filling when appropriate values are used.
Synergy
In synergy mode the cra ter filling time and the final wire feed speed are both set in
pulsed and no n pulsed crater filling. The voltage and the pulse parameters drop t o
the final values with the help of synergy.
Non synergy
In non synergy mode the settings can be changed to give another arc length at the
end of crater filling.
The final voltage can be set for non pulsed crater filling. The final voltage, final pulse
current, final background current and the final frequency can be set for pulsed crater
filling.
The final parameter values must always be equal to or lower than the set values for
continuous welding. If the settings for continuous welding are lowered below the set
final values they will also lower the final values. The final parameter values will not
increase again if the setting for continuous welding is increased.
GB
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Example:
You have 4 m/min as the final wire feed speed and lower the wire feed speed to
3.5 m/min. The final wire feed speed will also be lower e d to 3.5 m /min. The final wire
speed remains at 3.5 m/min even when the wire feed speed is increased again.
-- Crater filling is enabled in the measure image and the settings are defined in the
settings menu.
3.2.17 Pinch--off pulse
Pinch --off pulse is a pulse that is added to ensure than no ball is formed on the wire
when welding stops.
Only applies for MIG/MAG welding with dip/spray. When pulsing completion is
synchronised with a pulse, finishing pulse.
3.2.18 Burnback time
Burnback time is a delay between the time when the wire starts to brake until the
time when the power source switches off the welding voltage. Too short a burnback
time results in a long wire stickout after completion of welding, with a risk of the wire
being caught in the solidifying weld pool. A long burnback time results in a shorter
stickout, with increased risk of the arc striking back to the contact tip.
3.2.19 Gas post--flow
Gas post--flow controls the time during which shielding gas flows after the arc is
extinguished.
3.2.20 Limits
In this function you can choose a limit number. For settings, see chapter 17
”Configuring limits”.
3.2.21 Spot welding
Select Spot welding when you want to ”spot--weld” thin metal sheets.
Note! You can not shorten the weld time by releasing the gun trigger.
GB
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ESAB AristoPendant U8 User manual
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- Welding System
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- User manual
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