Polysoude PS 254 User manual

OPERATING,
PROGRAMMING AND
MAINTENANCE MANUAL
POWER SOURCE PS 254

2MAN. PS 254 EN – Ind. 2
LIMITS OF WARRANTY
Original features of the equipment and maintenance
The liability of the Polysoude company for delivered welding equipment is ending
immediately if:
-One or several components have been removed, distorted or altered without permission
in writing from the manufacturer, especially concerning safety facilities, electronic circuit
design or fluid systems...
-The essential maintenance procedures necessary for the faultless operation of the
machine have not been carried out.
Transformation of the original designation of the equipment
If approved equipment is used by the purchaser or a third party as part of a special
machine or an assembly line, instead of an examination part after part the responsible
party has to prove the conformity of the entire unit.
Consequently in this case the liability of Polysoude is released; the purchaser or the third
party has to take the engagements of a builder and to satisfy all applicable legal
requirements.
Stability of the machines
The stability of the machines has to be assured by strictly respecting the handling and
transport procedures specified by Polysoude (refer particularly to the specific chapter in
the Operating and Maintenance Manual).
Handling conditions
To move or displace equipment, the lifting eyebolts or integrated connection rods have to
be used.
In order not to overcharge lifting equipment, the operator must know the weight of the
equipment.
2002 Polysoude
Original edition: Polysoude S. A. Nantes France
All rights reserved. No part of this manual may be reproduced in any form or by any
electronic or mechanical means, including information storage and retrieval systems,
without permission in writing from the publisher, except by a reviewer who may quote
brief passages in a review.
Printed in France.
Published by Polysoude, Nantes, France.
www.polysoude.com [e-mail]

MAN. PS 254 EN – Ind. 2 3
Index
1. INTRODUCTION ..................................................................................................................... 5
1.1. The PS power sources ......................................................................................................... 5
1.2. The orbital welding heads..................................................................................................... 6
1.2.1. The open welding heads................................................................................................ 6
1.3. The tube to tubesheet welding heads.................................................................................... 6
1.3.1. The closed chamber weld heads.................................................................................... 7
1.4. Technical specifications of the power source PS 254............................................................ 8
1.4.1. Design features ............................................................................................................. 8
1.4.2. The remote control pendant........................................................................................... 9
1.4.3. Technical characteristics ............................................................................................. 10
1.4.3. Technical characteristics ............................................................................................. 10
1.5. Safety precautions.............................................................................................................. 11
1.5.1. General rules............................................................................................................... 11
1.5.2. Training of the operators.............................................................................................. 11
1.5.3. Maintenance and adjustments ..................................................................................... 11
1.5.4. Ergonomics ................................................................................................................. 11
1.5.5. Protection during breakdown or incidents..................................................................... 11
1.5.6. Electric disconnect or shut off devices ......................................................................... 11
1.5.7. Fire prevention and explosion protection...................................................................... 11
1.5.8. Protection against burns .............................................................................................. 11
1.5.9. Gases and vapors ....................................................................................................... 11
1.5.10. Failure elimination.................................................................................................... 12
2. INSTALLATION ..................................................................................................................... 13
2.1. Preparation of the PS 16 .................................................................................................... 13
2.2. Installation.......................................................................................................................... 14
2.2.1. Handling...................................................................................................................... 14
2.2.2. Installation................................................................................................................... 14
2.2.3. Input power connection................................................................................................ 14
2.2.4. Connection with gas supply ......................................................................................... 15
2.3. Preparation for work ........................................................................................................... 15
2.3.1. Connection of the remote control pendant.................................................................... 15
2.3.2. Connection of an MU welding head or a TP or TS tube/tubeplate welding head ........... 15
2.3.3. Connection of an air cooled closed chamber welding head .......................................... 16
2.3.4. Connection of a liquid cooled closed chamber welding head ........................................ 17
2.3.5. Connection of a wire feed unit ..................................................................................... 17
2.3.6. Connection of a manual torch with double command ................................................... 18
2.3.7. Connection of a liquid cooled closed chamber welding head with tachometry (optional) 18
2.4. Controls ............................................................................................................................. 19
2.4.1. Front panel.................................................................................................................. 19
2.4.2. Synopsis ..................................................................................................................... 20
2.4.3. The remote control pendant......................................................................................... 21
3. OPERATION OF THE PS 254 ............................................................................................... 22
3.1. Fundamental procedures.................................................................................................... 22
3.1.1. Switching on................................................................................................................ 22
3.1.2. Positioning the welding head on the workpiece ............................................................ 22
3.1.3. Wire setting ................................................................................................................. 22
3.1.4. Adjustment of the gas flow........................................................................................... 22
3.1.5. Manual cooling system start ........................................................................................ 22
3.2. Programmation surface ...................................................................................................... 23
3.3. Programming ..................................................................................................................... 24
3.3.1. Entering the program name ......................................................................................... 25
3.3.2. Modifying the program name ....................................................................................... 25
3.3.3. Choice of a built-in program......................................................................................... 26
3.3.4. Programming and modifying the welding parameters................................................... 27
3.3.5. Programming of sectors............................................................................................... 43
3.3.6. Deleting a program from the source memory ............................................................... 46
3.3.7. Entering the time and date........................................................................................... 47
3.3.8. Entering / modifiying the company name ..................................................................... 47

4MAN. PS 254 EN – Ind. 2
3.3.9. Saving, loading a program ........................................................................................... 48
3.3.10. Printing a program ................................................................................................... 49
3.3.11. Programmable parameters....................................................................................... 50
3.4. Execution of a weld program .............................................................................................. 52
3.4.1. Safety precautions....................................................................................................... 52
3.4.2. Choosing the program to be executed ......................................................................... 52
3.4.3. Simulation ................................................................................................................... 52
3.4.4. Weld cycle................................................................................................................... 52
3.4.5. End of welding cycle.................................................................................................... 53
3.4.6. Manual weld cycle stop................................................................................................ 53
4. SERVICING, MAINTENANCE AND TROUBLESHOOTING ................................................... 55
4.1. Servicing ............................................................................................................................ 55
4.1.1. Adjustments ................................................................................................................ 55
4.1.2. Adjustment of the inverter unit ..................................................................................... 57
4.1.3. Adjusting the rotation speed of welding heads with tachometry (optional)..................... 61
4.1.4. Coolant ....................................................................................................................... 62
4.1.5. Printer ......................................................................................................................... 62
4.2. Maintenance and troubleshooting ....................................................................................... 63
4.2.1. Replacing fuses...........................................................................................................63
Fig. 4.14: Location of the fuses.................................................................................................. 63
4.2.2. Trouble shooting.......................................................................................................... 64
4.2.3. Spare parts ( See “summary spare parts” pages 84/85) ............................................... 69
4.2.4. Circuit description........................................................................................................ 70
5. APPENDIX ............................................................................................................................ 76
5.1. Built-in programs ................................................................................................................ 76
5.1.1. Closed chamber welding heads or MU heads without filler wire.................................... 77
5.1.2. MU open welding heads with filler wire ........................................................................ 79
5.1.3. TS/TP welding heads for welding of tubes to tubesheet ............................................... 80
5.2. Error codes ........................................................................................................................ 81
CONFIGURATION OF THE DIPS FOR PS 254............................................................................... 82
SUMMARY SPARE PARTS .............................................................................................................85

MAN. PS 254 EN – Ind. 2 5
1. INTRODUCTION
1.1. The PS power sources
The power source PS 254 belongs to a
versatile new family of universal and easy to
use orbital TIG power sources. Special
features are:
•Welding sequences entirely programmable
in the language of the welder.
•Ease of use due to an intuitive
programming.
•Integrated program library for quick
welding parameter research.
•Real time monitoring system.
•Integrated printer for documentation of
welds according to the ISO 9000 standard.
•Possibility of storing programs in the
memory of the power source or on 3,5"
disk.
•Modern inverter based power source
technology.
•Mechanised welding with the ease and
comfort of PS power sources.
With a weld current range between 1 A and
350 A and up to six programmable axes the
PS power sources respond to a wide field of
applications:
•Pulsed or continuous weld current.
•Travel speed and wire speed continuous
or with pulsation synchronised to the weld
current.
•With Arc Voltage Control AVC, the welding
of several passes without interruption is
possible.
•Oscillation.
•Programmable mass flowmeter for the
shielding gas.
PS 204
Portable 200 A, single phase
input power source.
Ideal for on site use.
PS 254
Power source 250 A.
Ideal for shop, site and sub-
assembly work.
PS 256
Portable power source 250 A.
Comes with AVC and oscillation.
PS 356
Power source 350 A.
Programming like PS 256.
Universality for all welding needs.

6MAN. PS 254 EN – Ind. 2
1.2. The orbital welding heads
The PS power sources support most of the
Polysoude orbital welding heads.
1.2.1.The open welding heads
•MU IV type for standard applications and
all weld problems where AVC and
oscillation is required.
•Polycar welding carriage to weld large
diameter pipes.
1.3. The tube to tubesheet welding
heads
•TS heads with different productivity to
meet all requirements.
POLYCAR welding carriage to weld
large diameter pipes.
Microprocessor controlled AVC and
oscillation. Integrated wire feeder.
Possibility to adapt equipment fo
r
distance controlled or mechanised
welding processes.
TS 73 the standard welding head for tube
to tubesheet applications.
Open welding head for protruding, flush o
r
recessed tubes.
POLYFIL external wire feeder.
Wire feeder with four roll linear drive
system to minimise wire deformation and
surface distortion.
External wire feeder.
MU IV AVC/BL with AVC and
oscillation.
Modular design. Microprocesso
r
controlled AVC and oscillation slides,
driven by precision stepper motors.

MAN. PS 254 EN – Ind. 2 7
1.3.1.The closed chamber weld heads
•Sentry UHP for the demands of high purity
industries.
•HD when the access to the weld area is
reduced.
•MW for high production rates.
•K to answer the demand of a very reliable
shielding gas protection.
MW, when high production rates are
required.
High duty cycle due to water cooling.
A
daption kits for the welding o
f
accessories (elbows, flanges, valves,
connections, etc.) available.

8MAN. PS 254 EN – Ind. 2
1.4. Technical specifications of the power source PS 254
1.4.1.Design features
The PS 254 was designed especially for
automatic TIG (GTAW) welding. It works with
H type enclosed welding heads and it is
compatible with all standard Polysoude MU III
or IV open welding heads, TS and TP heads
for welding tube to tube plates and K, H, MW
and UHP enclosed heads of the Astro Arc
Polysoude range. The Polyturn positioner and
the Polyfil wire feed unit can be used. Welding
with a manual TIG (GTAW) torch is also
possible.
1 Screen 5 Printer
2 Synoptic programmation board 6 Connection panel
3 Key board
4 Memo card drive
①
②
④
⑤
③
⑥

MAN. PS 254 EN – Ind. 2 9
1.4.2.The remote control pendant
This allows:
•The positioning of welding heads and wire
feed units
•The starting and stopping of weld cycles
•The selection of the program to be
executed
•The simulation of a cycle without welding
•Modifications to be made during a cycle
•The shielding gas to be tested
•The manual start of the cooling pump
•The stopping of a cycle in the case of an
emergency.

10 MAN. PS 254 EN – Ind. 2
1.4.3.Technical characteristics
Power input Three phase +ground
400V - (as an option : multi voltage ; 200 – 460 V)
± 10 % 50 or 60 Hz
Open circuit voltage 105 V
Insulation class F
Protection class IP 21 IK04
Welding current range 4 - 250 A D.C.
Duty cycle 250 A / 60 % - 190 A / 100 %
Current resolution 1 % when I ≥100 A - 1 A when I ≤100 A
Pulse frequency from 10 to 9999 ms
Movement controls Direct or pulsed current
Constant or pulsed command of torch rotation
Constant or pulsed wire feed, wire-retract at the end of
the weld
Precision on movements ± 1 %
Gas control Gas torch with security
second gas (option)
Power source cooling Forced ventilation
Torch cooling By water in closed circuit with flow safety valve
Display of real values during cycle Continuous display:
. of arc voltage
. of welding current
. of impulses of movements
Programs in user memory 16
Display 4 lines of 20 characters, with 8 characters reserved to
the designation of programs
Program sectors 10 maximum
Program library 60
Program storage On memory card
Auto-diagnostic system Display of code number
Immediate exploitation with welding heads :
. tube/plate
. tube/tube MU* - MW - H - K, UHP
. direct use of wire feeder Polyfil
. PO motor mechanised application
Specific functions Possibility of connecting a manual TIG torch
As an option : possibility of controlling welding heads
with tachometer feedback
Size L x W x H (mm) 890 x 500 x 890
Weight 100 kg
Standard EN 60974-1/EN 50199

MAN. PS 254 EN – Ind. 2 11
1.5. Safety precautions
1.5.1.General rules
All aspects of work should be planned with
caution. To carry it out, safety related actions
are continuously required.
All hook up or maintenance operations
described in this manual, which may be
harmful, are always indicated by the
ATTENTION symbol.
Warning Situation with the risk to
injure persons or even
danger of life
Procedures to avoid malfunction or damage of
equipment are indicated by the mention Note.
1.5.2.Training of the operators
One copy of the operating and maintenance
manual is always delivered with the equipment.
The different operators (welder, controller,
maintenance people, ...) must always have at
their disposal at least one spare copy (respect
the copy right). The qualification they need for
their work depends on the level of
responsibility they carry during their mission.
1.5.3.Maintenance and adjustments
If maintenance or adjustment work has to be
carried out on the upper parts of the
equipment, a scaffold has to be erected.
It is strictly forbidden to pull on cables or hoses
to move welding heads or the power source or
to push on consoles or panels.
1.5.4.Ergonomics
!Identification
Identification by means of colours, especially
on safety relevant elements like buttons or pilot
lamps, must not be altered or changed.
Components with worn out colours have to be
replaced.
!Lighting of the work area
Lighting equipment should give regular light
without spots or too much light concentration.
Glare-free light without deep shadows can help
to avoid fatigue of the operators.
1.5.5.Protection during breakdown or
incidents
Before taking action in the case of a
breakdown or incident, the machines must be
disconnected from the power supply.
1.5.6.Electric disconnect or shut off
devices
!Disposition of equipment isolators
The presence of electric disconnect or shut off
devices is imposed by law. In case of mobile
equipment or when Polysoude supplies only a
part of the entire machine, the customer is
responsible to install the necessary missing
devices.
!Operation of electric disconnect or shut
off devices
Before electric disconnect or shut off devices
are operated, it has to be checked that this
action is of no danger for operators or visitors.
1.5.7.Fire prevention and explosion
protection
The working environment for the welding
machines must be free of combustible material
and solvents.
The PS 254 should never be used for the
purpose of defrosting.
1.5.8.Protection against burns
Operators and visitors must wear protection
against sparks.
1.5.9.Gases and vapors
A sufficient ventilation has to be installed in the
workshop to avoid health hazards caused by
gases or vapors generated during the weld
process. A protection against the radiation
emitted from the arc has to be worn.

12 MAN. PS 254 EN – Ind. 2
1.5.10. Failure elimination
Only qualified electricians are allowed to work
on electric or electronic equipment of the
welding machines and their connection to the
power supply.
Directly before beginning any work, the
isolation from the power supply has to be
controlled.
Warning Electric or electronic devices
may be under high voltage
even when disconnected
from the power supply.
Capacitors keep their charge
during a long period of time.
It is forbidden to alter or remove safety devices
from the machines.
Working on electric devices is only allowed
when standing on a dry floor. Avoid the
penetration of liquids to electric devices.
In the area around welding machines, solvants
and combustible liquids are not allowed.
Watches, jewelry and bracelets may not be
worn during interventions on electric devices.

MAN. PS 254 EN – Ind. 2 13
2. INSTALLATION
2.1. Preparation of the PS 254
The PS 254 is delivered in a transport
protection case. You will find:
•The remote control pendant BP 1436 or
BP 1737(1).
•A ground cable 9 m (30') in length (2).
•A gas connection (two other ones in case
of an optional second gas) (3).
•This operating and maintenance
manual (4).
•One memo card (5).
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Fig. 2.1 : Accessories of the PS 254
②①
③
④
⑤

14 MAN. PS 254 EN – Ind.2
Warning Do not move the PS 254 with
a fork-lift truck if it is not
place on its original pallet.
2.2.2. Installation
For safe work the PS 254 has to be placed
horizontally, on a firm surface. In this case a
shaft system ensures the stability of the
machines.
Openings are provided for ventilation of the
power source. To ensure effective cooling of
the system, a minimum distance of 30 cm (12")
should be maintained between these openings
and any surface.
2.2.3. Input power connection
Warning All connections must be
made by a qualified
technician respecting the
safety rules given by law or
quoted in this manual.
 General
The PS 254 is connected to the main power
supply with a cable of 3 conductors + ground,
which comes with the machine (length 3,5 m).
It is essential to connect the ground cable
correctly in order to ensure the safety of the
operators.
Refer to the name plate of your power source
for input power requirements. For example, to
work with an input voltage of 230 V, a 21 A
fuse is required.
Warning It is essential to connect the
ground cable in order to
ensure the safety of the
operators.
Fig. 2.2 : Name plate of the PS 254
multivoltage
Fig. 2.3 : Name plate of the PS 254 single
voltage

MAN. PS 254 EN – Ind. 2 14 bis
 Input voltage taps
Do not consider this paragraph if the PS 254
has to be connected in 400 V only.
In the case of a PS 254 fitted out with the
multivoltage kit, the input power jumpers must
be set correctly before it is switched on. The
input power of the power source is 500 V when
it is delivered to you.
Coupling is made on the terminal connection of
the power transformer. Unscrew the four
shackles on the top of the power source and
remove the roof in order to get access. Before
proceeding on any electrical part, make sure
the machine is not connected to the electrical
mains supply.
The power transformer being three-phase,
coupling has to be made in these three
different points.
Fig. 2.4 : Input voltage taps
The value of the mains voltage is beyond
standards.
The PS 254 is designed to work with a mains
voltage which can fluctuate by ± 10 % from the
nominal value. If the mains voltage of your
equipment is not comprised within this range,
you can intervene. In the connection terminal
situated near the transformer,move the "U"
wire to the “+” terminal if your voltage is too
high or to the “-“ terminal if it is too low.
Refer to the following table to know the
acceptable variations depending on
connections and nominal voltage (Un).
MAXIMUM
CONNECTION
MAXIMUM
VOLTAGE
MINIMUM
VOLTAGE
U Un + 10 % Un – 10%
- Un + 5 % Un – 15 %
+ Un + 20 % Un

MAN. PS 254 EN – Ind. 2 15
2.2.4.Connection with gas supply
Connection with the gas supply is made at the
rearside of the power source with the
appropriate fittings. Flow regulators should be
used to adjust the power source inlet gas
stream to the correct value (see appendix 4 -
Spare parts). Before making any connections,
briefly open the valves to drive out any
impurities.
Fig. 2.4 : Gas connections at the right
side of the PS 254
2.3. Preparation for work
2.3.1.Connection of the remote control
pendant
Connection of the remote control pendant is
made with the plug on the right side of the PS
254 on the screw connector.Make sure the
securing ring is tightened properly, otherwise
the system may not function correctly.
Warning: the power source will not work if the
remote control pendant is not properly
connected.
Fig. 2.5 : Connection of the remote
control pendant with the PS 254
2.3.2.Connection of an MU welding head
or a TP or TS tube/tubeplate welding head
Liquid cooled welding heads of these types
need to be used with the integral cooling unit.
!Connection of the electrode current
cable
Connect the current cable on the "-" terminal
with the quick connector, locking it by a short
rotation to the right.
Gaz 1
Gaz 2 (option)

16 MAN. PS 254 EN – Ind. 2
!Connection of the current return cable
Connect the current return conductor cable
onto the "+" terminal marked by a red ring.
Connection is made with a quick connector, by
a short rotation to the right. Connect the other
end of the cable to the workpiece, as close as
possible to the joint to be welded, in an area
free from grease and oxide.
!Connection of the rotation motor cable
Join the cable on the "Rotation" connector
(symbol ). Make sure that the securing ring
is properly tightened, otherwise the system
may not function correctly.
!Connection of the torch shielding gas
hose
Connection is made with a quick push-type self
sealing coupling situated at the connection
plate of the power source (symbol ).
!Connection of the coolant circuit
Connection is made by 2 quick push type self
sealing couplings on the front view (symbols
and ).
Fig. 2.6 : Connection of an MU welding
head or a TP/TS welding head
2.3.3.Connection of an air cooled closed
chamber welding head
Connection of an air cooled closed chamber
welding head
!Connection of the electrode current
cable
Connect the current cable on the "-" terminal
with the quick connector, locking it by a short
rotation to the right. This cable is not indicated.
!Connection of the current return cable
Connect the current return conductor cable
onto the "+" terminal marked by a red ring.
Connection is made with a quick connector by
a short rotation to the right. This cable is
indicated red.
!Connection of the rotation motor cable
Connect the cable on the "Rotation" module
connector (symbol ). Make sure that the
securing ring is properly tightened, otherwise
the system may not function correctly
!Connection of the torch shielding gas
hose
Connection is made with a quickpush type self
sealing coupling disconnect fitting situated at
the bottom left hand corner of the front panel of
the PS 254 (symbol
").
!Connection of a bipass plug for the
coolant circuit security for use with air
cooled welding heads.
It is necessary to introduce the bipass plug to
isolate the cooling circuit security in order to
avoid a continuously detected fault.
Fig. 2.7 : Connection of an air cooled
closed chamber welding head
Torch rotation
connection
Gas coupling
Electrode connection
Workpiece connection
Water coupling
Water coupling
Gas coupling
Torch rotation connection
Electrode connection
Workpiece connection
Shunt supplied with H heads

MAN. PS 254 EN – Ind. 2 17
2.3.4.Connection of a liquid cooled
closed chamber welding head
This is the case for type K and MW Astro Arc
Polysoude closed welding heads.
!Connection of the electrode current
cable
Connect the current cable on the "-" terminal
with the quick connector, locking it by a short
rotation to the right.
!Connection of the current return cable
Connect the current return conductor cable to
the "+" terminal with the quick connector,
locking it by a short rotation to the right. This
cable is indicated red.
!Connection of the rotation motor cable
Join the cable to the "Rotation" connector
(symbol ). Make sure that the securing ring
is tight otherwise the system may not function
correctly.
!Connection of the manual command
cable on the head (MW heads)
Connect the manual commands cable on the
FA 5 terminal (Fig. 2.12) on the connection
plate.
!Connection of the coolant circuit
Connection is made by 2 quick push type self
sealing couplings on the cooling unit RC 200
(symbols and ).
!Connection of the torch shielding gas
Connection is made with a quick disconnect
fitting situated at the connection panel of the
PS 254 (symbol ").
Fig. 2.8 : Connection of a liquid cooled
closed chamber welding head ( for
heads with integrated commands)
2.3.5.Connection of a wire feed unit
The wire feed unit is connected at the
connection panel of the PS 254
(symbol ). Make sure that the securing ring
is tight otherwise the system may not function
correctly.
Fig. 2.9 : Connection of a wire feed unit
Gas coupling
Torch rotation connection
Manual commands cable
Electrode connection
Workpiece connection
Water outlet
Water return

18 MAN. PS 254 EN – Ind. 2
2.3.6.Connection of a manual torch with
double command
!Connection of the electrode current
cable
Connect the current cable on the "-" terminal
with the quick connector, locking it by a short
rotation to the right.
!Connection of the ground cable
Connect the ground cable to the "+" terminal
surrounded by a red ring. Connection is made
with a quick connector, with right hand locking.
Connect the other end of the cable to the
workpiece, as close as possible to the joint to
be welded, in an area free from grease and
oxide.
!Connection of the command cable
The command cable of the manual torch has
to be joined to the socket FA 5 (Fig. 2.12).
!Connection of the coolant circuit
Connection is made by 2 quick push type self
sealing couplings on the front panel (symbols
and ).
!Connection of the torch shielding gas
hose
Connection is made with a quick push-type
coupling located on the connection plate of the
power source (symbol ").
Fig. 2.10 : Connection of a manual torch
2.3.7.Connection of a liquid cooled
closed chamber welding head with
tachometry (optional)
Adapters are mounted between every circuit
from welding head and connections on power
source :
•Gas circuit.
•Torch rotation.
•Electrode connection and water return.
•Workpiece connection and water outlet.
Connections of these adapters on the power
source are identical with those of a liquid
cooled closed chamber welding head.
Fig. 2.11 : Connection of a liquid cooled
closed chamber welding head with
tachometry
Gas coupling
Torch command connection
Electrode connection
Workpiece connection
Water outlet
Water return
Torch rotation
Gas
Electrode connection
Water return
Work
p
iece connection
Water outlet

MAN. PS 254 EN – Ind. 2 19
2.4. Controls
2.4.1.Front panel
FA 1 On/off switch.
FA 2 Connection for the remote control
pendant cable.
FA 3 Connection for the rotation motor
cable.
FA 4 Connection for the wire feed unit cable.
FA 5 Connection for manual torch
commands or for manual commands
for MW heads.
FA 6 Connection of a second gas inlet
[backing gas] (option).
FA 7 Connection for a second gas [bac king
gas] (option).
FA 8 Connection of the torch shielding gas
inlet.
FA 9 Connection for the torch shielding gas.
FA 10 Connection for the ground cable.
FA 11 Connection for the electrode cable.
FA 12 Coolant outlet.
FA 13 Coolant return.
Fig. 2.12 : Front panel
FA 1 FA 3
FA 4
FA 7
FA 8
FA 9
FA 2
FA 12
FA 13
FA 5
FA 6
FA 10
FA 11