90PUNTPI11 – 90PUNTPI12 – 90PUNTPI13 – 90PUNTPI21 – 90PUNTPI22 – 90PUNTPI23
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1.6
DESCRIPTION OF THE PRODUCT AND HOW IT WORKS
This welder belong to the family of resistance type welding machines.
By this we mean autogenous welding obtained by
pressure
, without using weld material, using the thermal effect of electricity
flowing through the components to be welded (Joule effect) for heating.
The components to be welded are gripped between two electrodes with a dual purpose: to let electricity pass through and to exert
enough force for welding.
The intensity of the current, the force on the electrodes and weld time are the most important parameters for welding. Force must
be applied during the electrodes’ squeeze time phases, weld time and holding time.
The welding control unit manages the welding cycle phases; the times set are given in 1/100 sec when themains frequency is 50
Hz and 1/120 sec. when the mains frequency is 60 Hz.
The main switch turns the welding machine on (item 6) which also has the function of an emergency stop switch.
Welding is started either by the RED button on the gun (1) or the lever switch (trigger) on the studder gun (2).
The welding machine is equipped with safety thermostats to stop operation if it overheats.
2. INSTALLATION INSTRUCTIONS
2.1
ENVIRONMENTAL CONDITIONS
Operating clearances:
The machine must be positioned to ensure working and maintenance clearances and for any emergency
situations that may arise. For this reason we recommend leaving a clearance of about 1 metre all around the machine.
Environmental characteristics:
The place where the machine is going to be used must be suitably illuminated for both production
and maintenance, free from dust, acids, corrosive substances or gases, with temperatures ranging b5°C and +40°C.
Altitude must be less than 1000 metres. Relative air humidity:
50% up to 40°C / 90% up to 20°C
Floor:
The machine must be put on a flat surface that must also be able to withstand its weight.
2.2
ENERGY REQUIREMENT
Electricity
Pneumatic energy
Model
Mains power
(three-phase power) kVA
Air consumption
See technical data
400V
20
Minimum circuit pressure
6,5 bar = Kpa 650
200V
20
2.3
CONNECTION TO THE ENERGY SOURCES
Qualified personnel who can also certify their work must install the machine.
THE INSTALLER IS RESPONSIBLE FOR A CORRECT INSTALLATION AND, IN PARTICULAR, FOR THE CHOICE OF
DEVICES TO PROTECT AGAINST SHORT CIRCUITING, OVERLOADS, LEAKAGE CURRENTS IN THE CASE OF A FAILURE
AND OF THE WIRES USED TO CONNECT TO THE MAINS WHICH MUST COMPLY WITH CURRENT LAWS AND
STANDARDS. THE INSTALLER MUST ALSO CHECK THAT THE EARTHING SYSTEM, TO WHICH THE WELDING MACHINE
IS CONNECTED, IS EFFECTIVE.
THE MACHINE MUST BE CONNECTED WITH A PLUG TO THE POWER SOURCE IN
ORDER TO BE UNDER THE OPERATOR SURVEILLANCE
.
Electrical connection
Modello
Rated current of delayed action
fuses or circuit breaker
Supply cable cross section up to
20 metres
400V
32
16 mm
2
200V
63
16 mm
2
-
Check machine plate data before connecting it (voltage rating, nominal frequency and number of phases).
-
Connect the welding machine to an RCD with a minimum current dispersion of 30 mA.
-
The welding machine must be protected with either delayed line fuses or a circuit breaker with the values given in the above
table.
Pneumatic connection
Connect the air pipe, with an inside diameter of minimum 7mm, to the inlet coupling.
