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pseudo-resonant topology. They are equipped with a
number of modern electronic functions such as HOT
START for easy arc ignition, SOFT START for slow increase
in current when used on genetator or undersized pro
-
tection, ANTI STICK - limiting the possibility of sticking
electrodes or ARC FORCE - additional energy for shorte
-
ning the arc. The available functions are TIG PULSE, TIG
DOWN SLOPE and TIG END CURRENT. Last but not least
the machines are equipped with a safety system V.R.D.
and turning off while the overvoltage in network. With
the exception which were mentioned, all functions are
adjustable for a perfect fit to a particular mode of wel
-
ding conditions and preferences welder. Machines are
specially made for production, maintenance, on assem
-
bly or workshops. Welding machines are in compliance
with relevant standards and regulations of European
Union and the Czech Republic.
Installation
The installation site for the system must be carefully
chosen in order to ensure its satisfactory and safe use.
The user is responsible for the installation and use of
the system in accordance with the producer’s instruc
-
tions contained in this manual. The manufacturer is not
responsible for damages caused by improper use and
handling. Machines must be protected from moisture
and rain, mechanical demage, drafts and any possible
ventilation of neighbor machines, excessive overloa
-
ding and by rough handling.
Before installing the system the user must take into
consideration the potential electromagnetic problems
in the work area. In particular, we suggest that you
should avoid installing the system close to:
• Signalling, control and telephone cables
• Radio and television transmitters and receivers
• Computers and control and measurement instru
-
ments
• Security and protection instruments
Persons fitted with pacemakers, hearing aids and simi
-
lar equipment must consult their doctor before going
near a machine in operation. The equipment’s installa
-
tion environment must comply to the protecttion level
of the frame i.e. IP 23 S. The system is cooled by means
of the forced circulation of air, and must therefore be
placed in such a way that the air may be easily sucked in
and expelled through the apertures made in the frame.
Connection to the electrical supply
Before connecting the welder to the electrical supp
-
ly, check that the machines plate rating correspondds
to the supply voltage and frequency and that the line
switch of the welder is in the „0“ position.
Connection to the power supply must be carried out
using the four polar cable supplied with the system, of
which:
• 2 conducting wires are needed for connecting the
machine to the supply
• the fourth, which is YELLOW GREEN in colour is used
for making the „EARTH“ connection
Connect a suitable load of normalised plug (2p+e) to
the power cable and provide for an electrical socket
complete with fuses or an automatic switch. The earth
terminal must be connected to the earth conducting
wire (YELLOW-GREEN) of the supply.
NOTE:
Any extensions to the power cable must be of
a suitable diameter, and absolutely not of a smaller
diameter than the special cable supplied with the ma
-
chine.
WARNING:
While using the machine on higher welding
current, the power take off may exceeds 16 A. In this
case it is necessary to change the default supply plug for
industrial plug with 20 A protection. At the same time
this protection must be in accordance with implemen
-
tation and protection in the distribution of electricity.
Other methods of connection are fixed connection to
separate circuit (such circuit must be protected by cir
-
cuit-breaker or fuse max. 25 A), or connection to three
-
phase network 3x400/230 V TN-C-S (TN-S).
In case of connection to three-phase network, the
5-pin plug 32 A must be used. Phase conductor - black
(brown) connect in the plug to one of clamp marked L1,
L2 or L3. Null conductor - blue - connect to clamp mar
-
ked (N), white/green conductor connect to clamp mar
-
ked (Pe). This way modified supply cable of the machine
can be pluged to the three-phase socket outlet, which
must be protected by circuit-breaker or fuse max. 25 A.
WARNING:
Machine may not be connected to interlin
-
ked voltage (i.e. voltage between two phases). In this
case the machine may be demaged. Such modifications
could be made only by competent person with electro
-
technical qualification.
Control apparatus
Picture 1
EN
