Deca SW 28 Руководство по эксплуатации - Страница 4
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Печатать страницуspecifically for the vehicle bodyshop and sectors with similar types of working.
Main parts Fig.1
A)
Tool-function selector.
B)
Timer/power switch on display.
C)
Timer/power increasing/decreasing values
D1)
Studder.
D2)
Plate heater.
D3)
Patching.
E)
Heat cut-out signal (resets automatically).
B1)
Timer display
B2)
Power display
F)
Timer/power display
G)
ON / OFF switch
Technical data
A data plate is affixed to the welding machine. Fig. 2 shows an example of this plate.
A) Constructor name and address
E) European reference standard for the construction and safety of welding equipment.
B) Symbol of delivered current: alternate / frequency.
U20
Minimum and maximum open circuit voltage (open welding circuit).
I2cc (min imp) Current delivered by the welding machine. (minimum impedance).
I2cc (max imp) Current delivered by the welding machine. (maximum impedance).
I2p
Current delivered by the welding machine. (duty cycle 100%).
C) Input power required: 1˜ alternate single phase voltage, frequency.
U1N
Input voltage.
Sp
Installation power (duty cycle 100%).
S50
Installation power (duty cycle 50%).
Mass Weight
D) Serial number.
L) Safety symbols: Refer to Safety Warnings
Connections to the mains must be made by expert or qualified personnel.
Make sure that the welding machine is switched off and the plug is not in the power
socket before carrying out this procedure.
Make sure that the power socket that the welding machine is plugged into is protected
by safety devices (fuses or automatic switch) and grounded.
The device must be connected only to a supply system, with an earthed 'neutral' lead.
Assembly and electrical connections
¾ Assembly the detached parts found in the packaging.
¾ Check that the electrical supply delivers the voltage and frequency corresponding to
the welding machine and that it is fitted with a delayed fuse suited to the maximum
delivered rated current
TN systems
Fig.3
¾ Protect by means of automatic circuit breaker (D curve) rated: 25A for 1Ph220/230.
The disconnection time in case of fault must not be higher than 0.4sec (for supply network
having a nominal voltage to earth of 230V) and should be evaluated at the installation:
if, due to installation conditions, the fault current becomes too low to properly operate
the circuit breaker, the use of an additional RCD (residual current device) may become
necessary (not on TN-C systems).
TT systems
Fig.3
¾ According to IEC 60364-4-41 the installation must be protected by an RCD which
sensitivity depends upon the earth connection resistance of each installation, IEC
60364-4-41 also requires that the RCD tripping time is lower than 1sec.
¾ The earth connection resistance of the installation must be considered for the
selection of the RCD sensitivity; the maximum resistance of the protective bonding
circuit of the welding equipment is: 0.19 Ohm
The requirements set out in the IEC/EN61000-3-12 standard do not apply to this
equipment. If this equipment is connected to low voltage power supply network, either
the installer or the user is responsible for checking that this can be done (consult the
distribution system operator if required).
L
The requirements set out in the IEC/EN61000-3-12 standard do not apply to this
950685-00 22/09/18
Starting up
equipment. If this equipment is connected to low voltage power supply network, either
the installer or the user is responsible for checking that this can be done (consult the
distribution system operator if required).
L
In order to comply with the requirements set out in EN61000-3-11 (Flicker), it is
advisable to connect the welder to the supply mains interface points with a service
current capacity of >/= 100A per phase.
L
Either the installer or the user is responsible for checking that the welder can be
properly connected; (consult the electrical grid operator if required).
¾ Plug. If the welding machine is not fitted with a plug, fit a normalised plug (2P+T for
1Ph) of suitable capacity to the power cable Fig.3.
Welding process
Once you have put the welding machine into operation, switch it on and carry out the
adjustments following the order shown in the description of the controls FIG.1
Studder: tecnique for use
¾ Firmly connect the copper bar to a part of the element being repaired, screwing or
clamping it on or welding a washer to the piece and using the terminal clamp as in
the fig. 4.
L
For repairing doors or cases, it is necessary to connect the copper bar to the part, to
prevent current from passing through the hinges.
¾ Adjust power and time (C) for the desired operation following the values given in table
(T) on fig.1
Spot welding and washer, nail, rivet traction (D1)
Sheet heating and overturning (D2)
Patching (D3)
L
In this function the pause time is fixed (approx. 0.5 sec.)
Thermal cutout signal (E)
The warning light switched on means that the thermal protections of the welder or of the
studder torch are running.
Switch off the welder and remove the plug from the power socket before carrying out any
maintenance operations.
STUDDER.
Torch = check that there are no cuts or abrasions in the cable that bare the internal
conductors.
Earth = check the efficiency of connections and terminal.
Extraordinary maintenance to be carried out by expert staff or qualified electrical
mechanics periodically depending on use.
• Inspect the inside of the welder and remove any dust deposited on the electrical parts
(using compressed air) and the electronic cards (using a very soft brush and appropriate
cleaning products). • Check that the electrical connections are tight and that the insulation
on the wiring is not damaged.
3
Maintenance