Telwin INVERSPOTTER 14000 SMART AQUA 400V Manuel D'instructions page 7

metal.
3 - "Cursor" buttons:
These are used to move the cursor on the Display.
4 - Dual-function encoder:
a) BASIC FUNCTION: changing the selected values
Turning the knob: this selects a value from those available for a specific function.
b) SPECIAL FUNCTION: "ENTER" – confirms the selected values
Pressing the knob: this confirms the selected value.
5 - Dual-function button:
a) BASIC FUNCTION: "MODE" – sequential button
Press the button in a sequential manner to enable the following modes:
- EASY (one single sheet with studder or two identical sheets).
- PRO (two identical or different sheets).
- MULTI (three identical or different sheets).
- CUST (Custom = List of customised spot welding programmes).
- MAINTENANCE (squeezing of electrodes without current delivery, setting of the
automatic or manual force regulator, setting of the arm length).
NOTE: The availability of one or more basic functions depends on the tool being
used.
b) SPECIAL FUNCTION: "MENU' "
To access the "Menu" function press and hold the "MODE" button for at least 3
seconds.
To exit "Menu", press and hold the same button for 3 s.
This button allows the operator to access the following secondary functions:
- LANGUAGE (user language settings)
- DATE (current date settings)
- HOUR (current time settings)
- RECORDING ON? (chronological recording of the spot welding parameters used
for the job).
6 - "ESC" Button:
Use this button to exit the active page and return to the main page without saving any
changes.
WARNING! Press the "ESC" and "MODE" buttons together when the
machine is booted to reinstate the default factory settings; all
customised settings will also be cancelled!
7 - Display:
This allows operators to view all the information needed to programme the spot
welding operations using the required functions.
8 - "START" Button:
This enables the machine to run the first time it is started up or after an alarm
situation.
NOTE:
When necessary, the display will signal to the operator that he must press the "START"
button in order to use the machine.
9 - General alarm LED, spot welder LED, recorder LED:
Yellow general alarm LED : this lights up when the thermostatic dead man switches,
power surge alarm, low power alarm, phase failure, air failure, water failure, or the
accidental short-circuit of the spot welder circuit are triggered.
Red "spot welder LED : this stays on during the entire spot welding cycle.
Red "REC" (recording) LED : this lights up when the machine parameters are set
to record the parameters of the welding to be performed.
NOTE:
Data is recorded to a USB memory stick only.
4.2.2 Pressure regulator and pressure gauge unit (Fig. B-9)
This allows the operator to adjust the pressure exerted on the pneumatic clamp
electrodes using the adjusting knob (for pneumatic clamps running in "Manual" mode
only).
4.3 SAFETY AND INTERLOCK FUNCTIONS
4.3.1 Safeguards and alarms (TAB. 2)
a) Thermal cutouts:
This is triggered by overheating of the spot welder due to low capacity or total lack
of cooling water, or by a work cycle that exceeds the admissible limit.
The alarm event is signalled by a yellow LED
The alarm is also displayed on the screen as follows:
AL 1= machine overheating alarm.
AL 2 = clamp overheating alarm.
AL 5= safety thermostat alarm
AL 8 = studder overheating alarm.
EFFECT: all movement is blocked, the electrodes open (exhauster cylinder); power
is shut down (welding disabled).
RESTART: manual (using the "START" button after the machine temperatures fall
below the allowed limit – the yellow LED
b) Main switch:
- "O" position = open, can be padlocked (see Chapter 1).
WARNING! The internal power cable connection terminals (L1+L2+L3) are
live when turned to the "O" position.
- Position " I " = closed: the spot welder is powered up but in stand-by mode
(STAND BY – press the "START" button to commence).
- Emergency function
Turning the switch to position " I "=>position "O" when the spot welder is running
will instantly shutdown the machine and trigger safe mode operations:
- Current disabled;
- electrodes open (cylinder discharged);
- automatic restart disabled.
c) Compressed air safeguard
Triggers if there is a pressure failure or pressure drop (p < 3bar) in the compressed
air supply;
The alarm event is signalled on the display by AL 6 = no air alarm.
EFFECT : all movement is blocked, electrodes open (cylinder discharged); power
is shut down (welding disabled).
RESTART : manual (using the "START" button) after the machine pressure falls
on the control panel.
will switch off.
within the allowed limit (pressure gauge indicator >3bar).
d) Cooling system safeguard
Triggers if there is a pressure failure or pressure drop in the coolant water;
The alarm event is signalled on the display by AL 7 = no water alarm.
EFFECT : all movement is blocked, electrodes open (cylinder discharged); power
is shut down (welding disabled).
RESTART : top-up with cooling liquid then switch off and reboot the machine (see
also Par. 5.6 "Cooling system settings").
e) Output short-circuit safeguard (pneumatic clamp only)
Before starting a welding cycle, the machine checks that the poles (positive and
negative) of the secondary spot welding circuit have no accidental contact points.
The alarm event is signalled on the display by AL 9 = output short-circuit alarm.
EFFECT : all movement is blocked, electrodes open (cylinder discharged); power
is shut down (welding disabled).
RESTART : manual (using the "START" button) after removing the cause of the
short-circuit event).
f) Phase failure safeguard
The alarm event is signalled on the display by AL 11 = phase failure alarm.
EFFECT : all movement is blocked, electrodes open (cylinder discharged); power
is shut down (welding disabled).
RESTART : manual (using the "START" button).
g) Overload and underload safeguard
The alarm event is signalled on the display by AL 3 = overload alarm and AL 4 =
underload alarm.
EFFECT : all movement is blocked, electrodes open (cylinder discharged); power
is shut down (welding disabled).
RESTART : manual (using the "START" button).
h) "START" Button (Fig. C – 8).
This button must be enabled to control the welding operations in the following
conditions:
- whenever the main switch is closed (pos "O"=>pos " I ");
- whenever the safeguards/thermal relays have triggered.
- whenever the (electrical or compressed air) power supply is restored following an
interruption due to disconnection upstream or a fault.
5. INSTALLATION
WARNING! INSTALLATION OPERATIONS AND ELECTRICAL AND
PNEUMATIC CONNECTIONS MUST ALWAYS BE CARRIED OUT WITH
THE SPOT WELDER SWITCHED OFF AND DISCONNECTED FROM THE
POWER SUPPLY.
THE ELECTRICAL AND PNEUMATIC CONNECTIONS MUST BE MADE ONLY
AND EXCLUSIVELY BY AUTHORISED OR QUALIFIED PERSONNEL.
5.1 SETTING UP
Unpack the spot welder and assemble the separate parts included in the package, as
indicated in this chapter (Fig. D).
5.2 LIFTING PROCEDURES (Fig. E)
The spot welder must be lifted using double cables and hooks which are suitable for
the weight of the machine and connected to the M12 rings provided.
It is strictly prohibited to sling and lift the spot welder using any methods other than
those provided herein.
5.3 POSITIONING THE SPOT WELDER
The area chosen to install the machine must be large enough to enable easy and
unhindered access by operators to the control panel and main switch, and ensure they
can work in complete safety.
Check that the cooling air inlets and outlets are not obstructed and that no conductive
dusts, corrosive vapours, humidity etc. can be sucked into the machine.
Position the spot welder on a level surface of compact even material with sufficient
load-bearing capacity, (see "technical specifications) so that it cannot be tipped over
or shift dangerously.
5.4 CONNECTION TO THE MAIN POWER SUPPLY
5.4.1 Warnings
Before making any electrical connection, check the rating plate data on the spot
welder to make sure they correspond to the voltage and frequency of the available
power supply where the machine is to be installed.
The spot welder must be connected only and exclusively to a power supply with the
neutral conductor connected to earth.
To guarantee protection against any direct contact always use the differential switches
indicated below:
- Type A ( ) for single-phase machines;
- Type B ( ) for three-phase machines;
- The spot welder does not fall within the requisites of IEC/EN 61000-3-12 standard.
Should it be connected to a public mains system, it is the installer's responsibility
to verify that the spot welding machine itself is suitable for connecting to it (if
necessary, consult the distribution network company).
5.4.2 Mains plug and socket
Connect the power supply cable to a standard (3P + T) plug of appropriate capacity
and prepare a power supply outlet fitted with fuses or an automatic circuit-breaker
switch; the corresponding earth terminal should be connected to the (yellow-green)
earth conductor of the power supply.
The capacity and tripping features of the fuses and the circuit-breaker switch are
indicated in the "OTHER TECHNICAL SPECIFICATIONS" paragraph.
WARNING! Failure to observe these rules will render the manufacturers
(class I) safety system ineffective and constitute a serious risk to
persons (e.g. electric shock) and property (e.g. fire).
5.5 PNEUMATIC CONNECTION
- Prepare a compressed air supply line with a working pressure of 8 bar.
- Assemble one of the compressed air fittings to the reduction gear unit filter and
adapt it to suit the connections available at the installation area.
5.6 COOLING SYSTEM ASSEMBLY (GRA)
WARNING! The filling operations should always be performed with the
machine switched OFF and disconnected from the mains supply.
Do not use electrically conductive anti-freeze liquids.
Use demineralised water only.
- Open the exhaust valve (Fig. B-12).
- Use the nozzle to fill up the tank with demineralised water (Fig. B-10): tank capacity
8 l; do not overfill it to prevent any water overflowing.
- Close the tank cap
- Close the exhaust valve.
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