Telwin tecnica 164 230v acx+maschera [12/60] Installation

Telwin tecnica 164 230v acx+maschera [12/60] Installation
that the welding machine can supply during welding
Wait until the LED (Fig.C(3)) has gone out completely
- X : Duty cycle: indicates the time for which the welding
before switching on again.
machine can supply the corresponding current (same
column). It is expressed as %, based on a 10 minutes
CONTROL, REGULATION AND CONNECTION
cycle (e.g. 60% = 6 minutes working, 4 minutes pause,
DEVICES
and so on).
WELDING MACHINE
If the usage factors (on the plate, referring to a 40°C
Front Panel
environment) are exceeded, the thermal safeguard
Fig. C
will trigger (the welding machine will remain in stand-
1 - Positive quick plug (+) to connect welding cable.
by until its temperature returns within the allowed
2 - YELLOW LED: normally off, when ON it means that the
limits).
welding current cannot flow due to one of the following
- A/V-A/V: shows the range of adjustment for the welding
faults:
current (minimum-maximum) at the corresponding
- Thermal protection: inside the machine the
arc voltage.
temperature is excessive. The machine is ON but does
9- Technical specifications for power supply line:
not deliver current until a normal temperature is
- U : Alternating voltage and power supply frequency of
reached. Once this happens the re-start is automatic.
1
welding machine (allowed limit ±10%):
- Mains over/undervoltage protection: when mains
- I : Maximum current absorbed by the line.
voltage is either too high or too low the machine is
1 max
blocked.
- I : : effective current supplied.
1eff
- ANTI STICK protection: automatically shuts down
10- : Size of delayed action fuses to be used to
the welding machine if the electrode sticks to the
protect the power line.
material being welded so that it can be removed
11- Symbols referring to safety regulations, whose meaning
manually without damaging the electrode holder
is given in chapter 1 “General safety considerations for
clamp.
arc welding”.
3- GREEN LED : Connection to the mains, machine ready
to work.
Note: The data plate shown above is an example to give the
4 - Potentiometer to regulate welding current with
meaning of the symbols and numbers; the exact values of
graduated scale in Amps, which also allows regulation
technical data for the welding machine in your possession
during welding.
must be checked directly on the data plate of the welding
(The “DUAL VOLTAGE AUTOMATIC” model has a
machine itself.
double graduated Ampere scale).
5 - Negative quick plug (-) to connect welding cable.
OTHER TECHNICAL DATA
- WELDING MACHINE: see table 1 (TAB.1)
Back panel
- ELECTRODE HOLDER CLAMP: see table 2 (TAB.2)
Fig. D
The welding machine weight is shown in table 1 (TAB. 1)
1 - Mains cable with E.E.C. 2p plug + (W).
(For the “DUAL VOLTAGE AUTOMATIC” model the cable
has no plug).
4. DESCRIPTION OF THE WELDING
2 - General luminous switch O/OFF - I/ON.
MACHINE
The unit is comprised of power modules which have been
developed on a specially printed circuit designed to
5. INSTALLATION
________________________________________________________________________________
maximise reliability and reduce maintainance.
Fig. B
WARNING! CARRY OUT ALL INSTALLATION
1 - Mains input (single phase), rectifier unit and condenser.
OPERATIONS AND ELECTRICAL CONNECTIONS WITH
2 - Transistors and drivers switching bridge (IGBT).
THE WELDING MACHINE COMPLETELY SWITCHED
It turns the mains rectified voltage into high frequency
OFF AND DISCONNECTED FROM THE POWER SUPPLY
alternate voltage and permits power regulation
OUTLET.
according to the current/voltage of the weld to be done.
THE ELECTRICAL CONNECTIONS MUST BE MADE
3 - High frequency transformer: the primary windings are
ONLY AND EXCLUSIVELY BY AUTHORISED OR
fed by the voltage converted by Block 2, it has the
function of adapting voltage and current to the values
QUALIFIED PERSONNEL.
________________________________________________________________________________
required by the arc welding procedure and,
simultaneously, isolates the welding circuit from the
PREPARATION
mains.
Unpack the welding machine, assemble the separate parts
4 - Secondary rectifier bridge with inductance: this
contained in the package.
changes the alternate voltage/current supplied by the
secondary windings into continuous current/voltage at a
Assembling the return cable-clamp
low wave-length.
Fig. E
5 - Electronic and regulation board: this instantly checks
the value of the welding current against that selected by
Assembling the welding cable-electrode holder clamp
the user, it modulates the commands of the IGBT
Fig. F
drivers, which control Regulation. Determines the
dynamic response of the current while the electrode
POSITION OF THE WELDING MACHINE
melts (instantaneous short circuits), and supervises the
Choose the place to install the welding machine so that the
safety systems.
cooling air inlets and outlets are not obstructed (forced
circulation by fan, if present); at the same time make sure
The "DUAL VOLTAGE AUTOMATIC" model has a device
that conductive dusts, corrosive vapours, humidity etc. will
that automatically recognises the power supply voltage
not be sucked into the machine.
(115V AC- 230V AC) and sets up the machine for correct
Leave at least 250mm free space around the welding
operation.
machine.
The user will be able to understand whether the machine
______________________________________________
power supply is 115V AC or 230V AC from the colour of the
LED (Fig C (3)).
WARNING! Position the welding machine on a flat
- GREEN LED shows that the machine is connected to a
surface with sufficient carrying capacity for its weight,
230V AC power supply.
to prevent it from tipping or moving hazardously.
- ORANGE LED shows that the machine is connected to a
______________________________________________
115V AC power supply.
During operation at 115V AC it is possible that
prolonged and sizeable voltage surges will cause the
CONNECTION TO THE MAIN POWER SUPPLY
machine to switch to 230V AC operation for safety.
- Before making any electrical connection, make sure the
In such circumstances, to resume welding, the
rating data of the welding machine correspond to the
machine must be switched off and on again.
- 12 -

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that the welding machine can supply during welding X Duty cycle indicates the time for which the welding machine can supply the corresponding current same column It is expressed as based on a 10 minutes cycle e g 60 6 minutes working 4 minutespause and soon If the usage factors on the plate referring to a 40 C environment are exceeded the thermal safeguard will trigger the welding machine will remain in stand by until its temperature returns within the allowed limits A V A V shows the range of adjustment for the welding current minimum maximum at the corresponding arc voltage 9 Techn leal specifications for power su pply line U Alternating voltage and power supply frequency of welding machine allowed limit 10 I Maximum current absorbed by the line 1 0 effective current supplied 10 i i Size of delayed action fuses to be used to protect the power line 11 Symbols referring to safety regulations whose meaning is given in chapter 1 Generarsafety considerations for arc welding Note The data plate shown abose is an example to give the meaning of the symbols and numbers the exact values of technical data for the welding machine in your possession must be checked directly on the data plate of the welding machine itself OTHER TECHNICAL DATA WELDING MACHINE see table 1 TAB 1 ELECTRODE HOLDER CLAMP see table 2 TAB 2 The welding machine weightisshown in table 1 TAB 1 4 DESCRIPTION MACHINE OF THE WELDING The unit is comprised of power modules which have been developed on a specially printed circuit designed to maximise reliability and reduce maintainance Fig B 1 Mains input singlephase rectifierunitandcondenser 2 Transistors and drivers switching bridge IGBT It turns the mains rectified voltage into nigh frequency alternate voltage and permits power regulation according to the current voltage of the weld to be done 3 High frequency transformer the primary windings are fed by the voltage converted by Block 2 it has the function of adapting voltage and current to the values required by the arc welding procedure and simultaneously isolates the welding circuit from the mains 4 Secondary rectifier bridge with inductance this changes the alternate voltage current supplied by the secondary windings into continuous current voltage at a low wa e length 5 Electronic and regulation board this instantly checks the value of the welding current against that selected by the user it modulates the commands of the IGBT drivers which control Regulation Determines the dynamic response of the current while the electrode melts instantaneous short circuits and supervises the safety systems The DUAL VOLTAGE AUTOMATIC model has a device that automatically recognises the power supply voltage 115V AC 230V AC and sets up the machine for correct operation The user will be able to understand whether the machine power supply is 115V AC or 230V AC from the colour of the LED Fig 6 3 GREEN LED shows that the machine is connected to a 230 V AC power supply ORANGE LED shows that the machine is connected to a 115VAC powersupply During operation at 115V AC it is possible that prolonged and sizeable voltage surges will ca use the machine to switch to 230V AC operation for safety In such circumstances to resume welding the machine must be switched off and on again 12 Wait until the LED Fig C 3 has gone out completely before switching on again CONTROL REGULATION AND CONNECTION DEVICES WELDING MACHINE Front Panel Fig C 1 Positivequickplug toconnectweldingcable 2 YELLOW LED normally off when ON it means that the welding current cannot flow due to one of the following faults Thermal protection inside the machine the temperature is excessive The machineisON but does not deliver current until a normal temperature is reached Once this happensthe re start is automatic Mains over undervoltage protection when mains voltage is either too high or too low the machine is blocked ANTI STICK protection automatically shuts down the welding machine if the electrode sticks to the material being welded so that it can be removed manually without damaging the electrode holder clamp 3 GREEN LED Connection to the mains machine ready to work 4 Potentiometer to regulate welding current with graduated scale in Amps which also allows regulation during welding The DUAL VOLTAGE AUTOMATIC model has a double graduated Ampere scale 5 Negative quick plug to connect welding cable Back panel Fig D 1 Mains cable with E E C 2pplug For the DUAL VOLTAGE AUTOMATIC model the cable has no plug 2 General luminous switch O OFF l ON 5 INSTALLATION A WARNING CARRY OUT ALL INSTALLATION OPERATIONS AND ELECTRICAL CONNECTIONSWITH THE WELDING MACHINE COMPLETELY SWITCHED OFF AND DISCONNECTED FROMTHE POWER SUPPLY OUTLET THE ELECTRICAL CONNECTIONS MUST BE MADE ONLY AND EXCLUSIVELY BY AUTHORISED OR QUALIFIED PERSONNEL PREPARATION Unpack the welding machine assemble the separate parts contained in the package Assembling the return cable clamp Fig E Assembling the welding cable electrode Fig F holder clamp POSITION OF THEWELDING MACHINE Choose the place to install the welding machine so that the cooling air inlets and outlets are not obstructed forced circulation by fan if present at the same time make sure that conductive dusts corrosive vapours humidity etc will not be suckedintothe machine Leave at least 250mm free space around the welding machine Ai WARNING Position the welding machine on a flat surface with sufficient carrying capacity for its weight to prevent itfrom tipping or moving hazardously CONNECTION TOTHE MAIN POWER SUPPLY Before making any electrical connection make sure the rating data ot the welding machine correspond to the

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